2008 6.4 L - Alliant Power

2008 6.4 L - Alliant Power
AIR M anagement Sys tem
Air Management System Components
Air Management System Features
•Series Sequential Turbocharger
• The series sequential turbocharger is a low
pressure/high pressure design working in series
with a turbocharger actuator on the high pressure
turbine controlling the boost pressures.
•Charge Air Cooler
• The charge air cooler is utilized to reduce the temperature
of the pressurized air therefore inducing a cooler/denser air
charge into the intake manifold for maximum efficiency.
•Intake Manifold
•Air Filter/Filter Minder
• An air filter/filter minder combination is utilzed to clean
the incoming air and provide a means for monitoring
the condition of the air filter via the filter minder.
•Exhaust Gas Recirculation (EGR) System
• The EGR system is designed to reduce exhaust emissions.
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EGR Cooler
Vertical
Throttle Body
EGR Valve
Turbocharger
Actuator
Compressor
Inlet (from air
cleaner)
Turbocharger
Crossover Tube
Low Pressure
Turbocharger
High Pressure
Turbocharger
Intake Manifold
EGR Cooler
Horizontal
EGR Diesel
Oxidation
Catalyst
(EDOC)
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Air Manage ment s ystem
System Flow
• The intake manifold directs the cooled air to
the intake ports of the cylinder heads.
• Air enters the system through the air filter where particles
are removed from the air. The air filter has a filter minder
on it to warn the operator of a restricted air filter.
• The burned air fuel mixture is pushed out of the cylinder into
the exhaust manifold which collects the exhaust and routes
it to the high pressure turbocharger’s turbine wheel.
• After the air is filtered, the mass of the air and temperature
are measured by the mass air flow sensor (MAF) and
the intake air temperature sensor #1 (IAT1).
• The exhaust up pipe, connected to the passenger side exhaust
manifold has a passage that directs exhaust to the exhaust
gas recirculation (EGR) coolers and then to the EGR valve.
• The filtered air is then directed past the crankcase ventilation
system where crankcase vapors and fresh air are mixed.
• The EGR valve controls the flow of exhaust into the intake
system where the gases are mixed with intake air to
reduce NOx (Oxides of Nitrogen) emissions and noise.
• After mixing with crankcase vapors the fresh air mixture is drawn
into the low pressure turbocharger compressor then the compressed
air is sent to the high pressure turbocharger where it is further
compressed before being sent to the charge air cooler (CAC).
• The hot and expanding exhaust gases that are routed to the
series sequential turbocharger turbines, spin the turbine wheels
through flow and expansion. The spinning turbine wheels
then spin the compressor wheels via common shafts.
• The (CAC) cools the compressed air via an air-to-air cooler,
then the condensed air passes through the EGR throttle, mixes
with cooled EGR gases, then enters the intake manifold.
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air management s ystem
Air Filter Housing/ Filter Minder
Air FIlter Housing
• The air filter is located on the passenger side of the
engine compartment between the battery and the cowl.
• A filter minder, device used to measure filter
restriction, is located on the outlet side of the air
filter housing just before the MAF sensor.
• Fresh air, from the passenger side fender area,
is drawn into the air filter and particulates are
removed from the air before going to the engine.
Filter Minder
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Air Filter Element
Air FIlter Element
• The new air filter element is a replaceable
cartridge separate from the housing.
• The air filter is capable of holding 750 grams of
particulates before needing replacement.
• The filter element is a honeycomb design.
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Charge Air Cooler (CAC)
• The CAC is located in the front of the radiator.
• The CAC is an air to air cooler designed to lower the
temperature of the air coming out of the turbocharger
outlet before entering the intake manifold.
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air ma nagement s ystem
Series Sequential Turbocharger
& Turbocharger Actuator
• The series sequential turbocharger for the 6.4L Power
Stroke® Diesel is designed to provide boost control at
low and high speeds for improved throttle response.
Oxidation Catalyst
Low Pressure
Turbocharger
High Pressure
Turbocharger
• The turbocharger actuator is used to control the
position of the variable vanes inside the high
pressure turbocharger’s turbine housing.
• When the vanes of the turbocharger are closed, the
engine will have a higher exhaust back pressure
and create more heat which will in turn warm
the engine faster in cold ambient conditions.
NOTE: There is an oxidation catalyst in the exhaust
pipe for the EGR system that is utilized to crack
hydrocarbons before they enter the EGR system.
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Turbocharger
Actuator
Turbocharger Actuator
• The variable vanes inside the high pressure
turbocharger’s turbine housing are now
controlled by the turbocharger actuator.
• The high pressure turbocharger’s turbine housing
contains vanes that control the effective size of
the housing. These vanes are controlled by the
turbocharger actuator by way of a control arm. The
control arm connects the actuator to a pivot shaft which
connects to the unison ring that moves the vanes.
Control Arm
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Turbocharger Actuator Cooler
Turbocharger
Actuator
• The turbocharger actuator is fitted with a
cooling plate to reduce the temperature of the
electronics inside the actuator housing.
• The actuator cooler uses coolant from the fuel
system cooler as the heat exchange medium.
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Turbocharger
Actuator Cooler
air management s ystem
High Pressure
Turbocharger
Low Pressure
Turbocharger
INTAKE AIRFLOW (Blue)
EXHAUST AIRFLOW (Red)
• Air enters the low pressure turbocharger from the air filter.
• Exhaust gas enters the high pressure turbocharger
turbine housing after being directed through the
exhaust up-pipes at the rear of the engine.
• The low pressure turbocharger compresses the air and
sends the air through the extension tube and the crossover
tube prior to entering the high pressure turbocharger.
• The high pressure turbocharger turbine contains the
vanes which are controlled by the turbocharger actuator.
These vanes continually change the velocity of the exhaust
gas in the high pressure turbocharger turbine.
• The high pressure turbocharger further compresses the air and
sends the air to the charge air cooler (CAC) where the air is cooled
by an air-to-air cooler prior to entering the intake manifold.
• After the exhaust gas has passed through the high
pressure turbocharger turbine it immediately enters
the low pressure turbocharger turbine.
• Once the exhaust gas has powered the low pressure
turbocharger turbine the exhaust gas exits through
the housing towards the rear of the engine where it is
directed to the exhaust aftertreatment system.
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air ma n agem ent syste m
Vanes Closed
• During engine operation at low engine speeds and
load, little energy is available from the exhaust to
generate boost. In order to maximize the use of the
energy that is available, the vanes are closed. In doing
so, the exhaust gas is accelerated between the vanes
and across the turbine wheel. In general, this allows
the turbocharger to behave as a small turbocharger,
increasing the wheel speed quickly at low speed.
• Closing the vanes also increases the back pressure in the
exhaust manifold which is used to drive the exhaust gas
through the EGR cooler and valve into the intake manifold.
• The closed vane position is also used
for cold ambient warm up.
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Vanes Partially Closed
• During Engine operation at moderate engine speeds
and load, the vanes are commanded partially open.
• The vanes are set to this intermediate position to
supply the correct amount of boost to the engine
for optimal combustion as well as providing the
necessary back pressure to drive EGR.
Note: There is actually an infinite number of vane
positions between open and closed. The partially
closed picture is for illustration purposes only.
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Vanes Open
• During engine operation at high engine speeds and load,
there is a great deal of energy available in the exhaust.
• Excessive boost under high speed, high load conditions can
negatively affect component durability, therefore the vanes
are commanded open preventing turbocharger overspeed.
• Essentially, this allows the turbocharger to act as
a large turbocharger with minimal restriction.
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air management s ystem
EGR Valve
• The ECM controlled EGR (Exhaust Gas Recirculation)
valve adds cooled exhaust gases to the intake
manifold to reduce NOx emissions.
• The EGR valve is opened during steady state
throttle positions when exhaust back pressures are
higher than intake manifold pressures (boost).
EGR Valve
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EGR Flow
• The EGR valve has two valves connected by a common shaft.
• Cooled exhaust gas enters the lower opening of the
EGR valve after leaving the vertical EGR cooler.
• When the valve opens it allows the cooled exhaust gas to
flow through two passages, one passage is through the
upper opening of the EGR valve (upper valve) and the other
is through a passage below the EGR valve (lower valve).
• Both passages merge together prior to being
mixed with the filtered incoming air before
being sent to the intake manifold.
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EGR Cooler
Horizontal
Dual EGR Cooling System
• The EGR cooling system is an air to coolant
heat exchanger that is used to cool the exhaust
gases before they are sent to the EGR valve.
• The exhaust is routed into the EGR coolers from
the exhaust up pipes at the rear of the engine.
• The exhaust is cooled by passing through metal
tubes that are surrounded by engine coolant.
Depending on conditions, the temperature drop
across the coolers could be as much as 850°F.
• The cooled exhaust is then routed to the EGR valve
that is mounted to the inlet mixing chamber.
EGR Cooler Vertical
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Air ma n agem ent syste m
Throttle Body
• The throttle body is used to assist with
the exhaust aftertreatment system.
Throttle Body
Throttle Plate
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Intake Manifold
IAT 2
• The intake manifold on the 6.4L Power Stroke®
Diesel is made of aluminum and directs the flow
of air to the intake ports in the cylinder heads.
• The manifold absolute pressure sensor (MAP)
and the intake air temperature 2 sensor (IAT2)
are both mounted in the intake manifold.
Intake Manifold
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MAP
Fuel Managem ent Syste m
High Pressure Common Rail Fuel System
• The high pressure common rail fuel injection
system with piezo electric fuel injectors uses
pressurized fuel and electronics to actuate and
control fuel injection into the cylinders.
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Fuel Management System Major Components
•Fuel Supply System
High Pressure Common Rail Direct Injection
Fuel System Components
• The fuel management system is comprised of several sub systems.
•High Pressure Fuel Injection Pump
• Each system works together to deliver excellent
power and efficiency while meeting the
requirements of emissions regulations.
•High Pressure Fuel Tubes
•Sensors
•Injectors
•Electrical Components
•Actuators
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High Pressure Common Rail
Fuel System Advantages
Fuel Management System Features
• Emissions and noise have been reduced
through improvements in rate, timing
control, and multiple injections.
•Emissions
•Noise
• The high pressure system’s pressure relief function is
now controlled by the PCV (Pressure Control Valve), which
is mounted to the high pressure fuel injection pump.
•Rate Control
•Timing Control
• The piezo fuel injectors help reduce noise
while delivering optimum performance.
•PCV (pressure control valve)
•VCV (volume control valve)
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Fuel Managem ent Syste m
HIGH PRESSURE FUEL SYSTEM
High Pressure Fuel System Flow
• The high pressure fuel rail supply tubes route the fuel to
the high pressure fuel rail located under the valve cover.
• Fuel is supplied to the high pressure fuel injection pump
after being filtered by both the HFCM (horizontal fuel
conditioning module) and the engine mounted fuel filter.
• The high pressure fuel injection pump is gear driven
off of the camshaft gear at the rear of the engine.
• The high pressure fuel rail inlet protrudes
through the valve cover spacer at the back of the
engine and oil is sealed by a rubber seal.
• Once the high pressure fuel injection pump
pressurizes the fuel it is routed to two (2) high
pressure fuel rail supply tubes, one for each bank.
• The high pressure fuel rail routes fuel to each of the
four (4) fuel injectors through four (4) separate fuel
injector supply tubes all located under the valve cover.
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Fuel Managem ent Syste m
1) ITP (internal transfer pump)
2) VCV (volume control valve)
3) High-Pressure Fuel Injection Pump Element
4) PCV (pressure control valve)
5) Inlet Pressure Control Valve
6) Lubrication Valve
7) Edge Filter
a) Fuel Inlet
b) High-Pressure Connection
c) Fuel Return
High Pressure Pump Operation
• The pistons start their compression stroke via the offset
journal and are returned to rest via spring pressure.
• After being filtered at the engine mounted fuel filter, fuel
is directed to the high pressure fuel injection pump.
• The pistons receive fuel from the VCV through a one way check valve.
Fuel is drawn into the cylinder while the piston is returning to rest.
• Before fuel enters the Volume Control Valve (VCV) the
pressure is stepped up by the Internal Transfer Pump
(ITP). The ITP is located inside the high pressure fuel
injection pump and is driven by its main shaft. • The outlet check valve ball is closed while fuel is being drawn
in due to the suction (low pressure area) of the piston returning
to rest and the pressure exerted by the other two pistons.
• The VCV controls how much fuel enters the
three (3) main pump pistons.
• Once the piston starts its compression stroke, the inlet
check valve closes via spring and fuel pressure and the
outlet check valve opens due to increasing fuel pressure
forcing the check valve ball away from its seat.
• A portion of the fuel leaving the ITP is sent to a lubrication valve
which allows fuel to lubricate and cool the internal mechanical
components of the high pressure fuel injection pump.
• The pressure control valve (PCV) controls the pressure
in the system by restricting fuel flow to the return
line (pressure is the resistance to flow).
• The high pressure fuel injection pump main shaft has an offset journal
that actuates each of the three (3) pistons as the shaft rotates.
• The offset journal of the main shaft utilizes a free-spinning
hub to make contact with the three (3) pistons.
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Fuel Managem ent Syste m
High Pressure Fuel Injection Pump & Cover
Electrical Connector
Electrical Connector
• The high pressure fuel injection pump
is installed in the crankcase.
• The pump is a three (3) piston rotary style
pump that is driven by the rear gear train.
• Each bank of cylinders has its own pump outlet
and high pressure fuel supply tube.
High Pressure Fuel
Injection Pump Cover
High Pressure Fuel
Injection Pump
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PCV (Pressure Control Valve)
VCV (Volume Control Valve)
Pressure Control
Valve (PCV)
• The PCV and VCV are both installed in the
high pressure fuel injection pump.
• The PCV and VCV ARE NOT SERVICEABLE.
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High Pressure Fuel Rail & Fuel
Rail Pressure Sensor (FRP)
• Fuel under extremely high pressures is
delivered to the fuel injectors from the fuel rail
by way of the fuel injector supply tubes.
• The FRP sensor is located on the engine’s
right side high pressure fuel rail.
FRP Sensor
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Volume Control
Valve (VCV)
Fuel Managem ent Syste m
Piezo Electric Fuel Injector
Fuel Injector Features
•Piezo Electrically Actuated
• The injector uses a Piezo Actuator to electrically
control the injections with extreme precision.
•High Electrical Effeciency
• The Piezo Actuator is turned on for approximately 0-400
µs (micro second or millionth of a second) for 2 injections.
•High Voltage Supply
• No special tools are needed to remove the injectors from
their bore. The injector is slowly removed from its bore
by removing the self-extracting hold down clamp bolt.
•Up to 5 Injections Per Combustion Event
•Self extracting hold down clamp
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Electrical
Connector
Piezo Actuator
Fuel Inlet
From High
Pressure Fuel Rail
Injector & O-ring
• The injector has one (1) replaceable o-ring on the
outside of the body, and one (1) replaceable soft
steel combustion gasket on the tip of the injector.
• The injector’s piezo actuator has a single two (2) pin
connector that is located under the valve cover.
• The fuel charging harness has a single main connection
point at the front of the valve cover spacer.
O-Ring
Fuel Return Line
Drain Holes
Soft Steel
Combustion Gasket
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Piezo Actuator
(non-energized)
Piezo Actuator
(energized)
Piezo Actuator
• The piezo actuator is an electrically energized device that
acts similar to a solenoid but is much more precise.
• A piezo actuator is a composition of piezo discs, that
when electrically energized, cause the discs to deform
resulting in an expansion. This expansion results in
a longitudinal motion thus controlling the injector.
• When energized, the piezo actuator pushes downward
against the valve piston. The piezo actuator is returned
to its non energized state via the ECM switching
the polarity of the electrical feed to the injector.
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Fuel Manage ment System
Valve Piston
• The valve piston is utilized for one main purpose:
1) It transfers the up and down movement from the Piezo Actuator to the Valve Mushroom.
Valve Piston
Valve Mushroom
Control Piston
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Valve Mushroom, Return Spring,
and Control Piston
• The valve mushroom is a hydraulic check valve that allows
high pressure fuel to bleed off into the fuel return passage
directly above it whenever the Piezo Actuator is energized.
• The valve mushroom is held in a closed (sealed)
position whenever the Piezo Actuator is not energized
via high pressure fuel and spring pressure.
• The control piston utilizes its large surface area
for a downward force to overcome the pressure
exerted by the smaller surface area of the nozzle
needle in the high pressure chamber to keep
the nozzle needle in a closed position.
Valve Mushroom
Valve Mushroom
Return Spring
Control Piston
Chamber
Control Piston
Fuel Return Passage
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Nozzle Needle
• The nozzle needle is an inwardly opening type which
lifts off its seat every time the pressure in the high
pressure chamber exceeds the pressure in the control
piston chamber, i.e. when the piezo is actuated.
• The needle control spring is used to hold
the nozzle needle in a closed position.
• Fuel is atomized at high pressure through
the nozzle tips six spray holes.
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Needle Control
Spring
Nozzle Needle
High Pressure
Chamber
Spray Holes (6 holes)
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High Pressure
Fuel
Fuel Managem ent Syste m
Stages of Injection
Two Stages of Injection
• The injection cycle has two (2) stages.
•Main Injection
• Main injection.
•End of Main Injection
• End of main injection.
• This injection system is capable of performing both steps
of the injection cycle up to 5 times per firing cycle.
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Pre-Main Injection
• The piezo electric fuel injector is constantly being filled
with fuel via the high pressure fuel injection pump.
1
• High pressure fuel from the high pressure fuel
injection pump enters the following areas:
- control piston chamber (2).
- spring side of the valve mushroom (4).
4
- high pressure chamber (3).
2
• The needle control spring (9) holds the needle on its seat
so that fuel cannot enter the combustion chamber.
• The piezo actuator (1) is in a non-energized state.
9
3
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Fuel Managem ent Syste m
Main Injection Step 1
1
• Fuel under pressure from the rail (7) reaches the
control piston chamber (2) and the high pressure
chamber (3) of the nozzle needle (5).
7
4
• The bore hole to the fuel return line is closed
via the valve mushroom (4), which is held
closed by a spring and high pressure fuel.
• The surface area of the control piston is much
larger than the surface area of the nozzle
needle in the high pressure chamber.
2
F1
• The force (F1) exerted by the control piston due to its
larger surface area along with the force of the needle
control spring overcomes the force (F2) exerted by the
smaller surface area of the nozzle needle in the high
pressure chamber which holds the nozzle needle closed.
3
5
F2
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Main Injection Step 2
1
• When the piezo actuator (1) is commanded on,
the actuator is energized (which causes the piezo
discs to deform and create a downward force)
and pushes the valve piston (8) downward.
• The downward force of the valve piston pushes
the valve mushroom (4) and spring down which
opens up a bore hole that connects the high
pressure fuel to the fuel return line (6).
8
4
6
2
F1x
• When this happens it allows a small amount of high
pressure fuel to enter the fuel return line (6) effectively
dropping the pressure in the control piston chamber (2).
• This pressure drop is enough for the force (F2x) on
the nozzle needle (5) in the high pressure chamber to
overcome the force (F1x) in the control piston chamber (2).
6
• This allows the nozzle needle (5) to move upward
uncovering the six spray holes and allowing high pressure
fuel to atomize and enter the combustion chamber.
5
F2x
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Fuel Managem ent Syste m
End of Main Injection Step 1
1
• The high pressure fuel, that is allowed to escape
past the valve mushroom (4) into the fuel return
line (6), is routed down a drilled passage to the
drain holes in the sides of the injector just below
the O-ring seal towards the base of the injector.
8
4
6
2
• The fuel is then routed through the cylinder head and exits
through a banjo fitting on the front side of the cylinder
head before being returned to the fuel supply system.
F1x
6
5
F2x
100
1
7
4
2
F1
End of Main Injection Step 2
• When the Engine Control Module (ECM) determines that
the correct injector on time has been reached, it switches
the polarity of the piezo actuator (1) which causes
the piezo discs to return to a non-enerrgized state.
• Switching the polarity of the piezo actuator (1) enables
the valve mushroom (4) to seat via spring pressure
and completely block the bored passage that connects
the high pressure fuel to the fuel return line.
• Seating the valve mushroom (4) allows the pressure
to build in the control piston chamber (2) and
equal that in the high pressure chamber (3).
• Once these two chambers have equalized in pressure
the downward force (F1) of the control valve will
overcome the upward force (F2) of the nozzle needle
due to the larger surface area of the control valve.
• The control valve then moves downward effectively
closing the nozzle needle (5), blocking any fuel
from entering the combustion chamber.
3
5
F2
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Cooling system
Cooling System Features
• The coolant pump can be serviced without disconnecting
radiator hoses.
• Both the glow plug sleeves and the injector sleeves are
stainless steel.
Cooling System Features
•Coolant Pump
•Stainless Steel Injector Sleeves
•Stainless Steel Glow Plug Sleeves
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Internal Coolant Flow
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16
Cooling System
External Coolant Flow
Cooled exhaust
out to EGR valve
Degas
Bottle
Color change indicates
coolant temperature
as heat is transfered
from exhaust gases
to the coolant
R
EG
e
ol
Co
Heater
Core
Deaeration/coolant feed
to degas bottle
Coolant feed
to EGR valve
r#
2
Hot exhaust
in from right
up-pipe
EGR Cooler #1
Partially cooled
exhaust gases
Coolant Pump
Cooled coolant
to pump from
bottom radiator port
Hot Coolant
Radiator fill/
Overflow supply
to degas bottle
(flow in either direction)
Cooled Coolant
Hot coolant
from pump to
top radiator port
Radiator
Cooling System Flow: External Flow
• The EGR valve receives its coolant from a passage at the top of
the vertical EGR cooler. Once the coolant exits the EGR valve it
is sent to the degas bottle (this passage is the highest point in
the system and is also the deaeration port).
• Coolant is drawn into the inlet of the front cover from the bottom
radiator port and then flows from the coolant pump through the front
cover to the crankcase.
• Coolant is also routed from the front cover into the crankcase to a
passage that feeds the oil cooler (shown on next page).
• The port directly below the EGR valve return/deaeration port
on the degas bottle is used as a radiator fill/overflow line
connecting with the top of the radiator.
• Coolant is routed from the front cover to the EGR coolers, EGR valve,
degas bottle, and the vehicle heater core.
• A dual thermostat sytem is used to control the flow of return
coolant to the radiator. If the thermostats are open, coolant
flows to the radiator to be cooled. The bottom thermostat has
a bypass circuit that will allow coolant to return to the pump
when the thermostats are closed (speeding engine warm up).
• The horizontal EGR cooler receives coolant first, then the coolant
travels to the vertical EGR cooler through a short connection hose.
Hot coolant exits the vertical EGR cooler at the top and enters into
the front cover.
• A port next to the hot EGR return port in the front cover routes hot
coolant to the heater core for vehicle heating. The coolant then
travels to a Y-pipe where it meets with degas return coolant before
being sent into the front cover, just above the main coolant inlet from
the radiotor.
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Coo ling S ystem
COOLANT IN
(from block)
Cooling System Flow: Back of Front Cover
• Coolant is sealed via a metal one piece gasket and is
directed out of the front cover through three (3) passages.
Coolant
Orifices
• Two of the passages route coolant to the crankcase to cool
the cylinder walls and cylinder heads (there are different
sized orifices pressed into the crankcase in these two
passages).
• The third passage routes coolant to the oil cooler via a
passage in the crankcase.
• There are two passages for coolant to return from the
crankcase into the front cover.
COOLANT OUT
(to block)
Oil Cooler Coolant Flow
Oil Cooler Cover
(Top View)
Oil Filter Base
Oil Cooler Cover
Coolant
Outlet to
Crankcase
Coolant
Inlet from
Crankcase
Inlet to
Cooler
Outlet
from Cooler
Oil Cooler
Oil Cooler Cover
(Bottom View)
Cooling System Flow: Oil Cooler
• Once the coolant has passed through the oil cooler it is routed
up to the top of the oil cooler then directed towards the front
through a port where it is then routed down, out of the cooler,
through a port in the block.
• Coolant is directed out of the crankcase and into the oil filter base at
the front of the engine.
• The oil filter base routes the coolant down into the front of the oil
cooler then toward the rear of the engine.
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Cooling S ystem
EGR Valve Coolant
Supply
EGR Cooler Vertical
Coolant Supply
from Horizontal
Outlet
Cooling System Flow: EGR Coolers
• Cooled coolant flows out of the supply port of the front
cover where it is routed to the horizontal cooler at the left
rear side of the engine.
• The coolant then exits the horizontal cooler and is
immediately routed into the vertical cooler. The coolant
then exits the vertical cooler where it is routed to the return
port in the front cover.
• There is a small port at the top of the vertical cooler where
coolant is allowed to flow to the EGR valve, cool the valve,
then the coolant is routed to the degas bottle. This port is
also used as the deaeration port.
EGR Cooler
Vertical
Coolant
Outlet/Return
to Front Cover
• Coolant flows through the EGR coolers and removes heat
from the exhaust before the exhaust arrives at the EGR
valve.
EGR Cooler Horizontal
Coolant Supply
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Coolant Pump & Front Cover
• The coolant pump, (hub and impeller) is mounted into the
front cover which is the housing for the water pump.
• The coolant pump impeller pulls coolant from the center of
the housing and pushes it outward.
• The coolant pump has a built in reservoir to catch small
amounts of coolant that during normal operation of the engine may seep past the seal. This coolant will evaporate
over time.
Note: The coolant pump impeller may be damaged if dropped or hit by a hard object.
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Injector Sleeve
• The 6.4L Power Stroke uses stainless steel injector sleeves
to seal coolant from the injector and to transfer heat from
the injector to the coolant.
Injector Sleeve
• The injector sleeve is replaceable.
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c ooling system
Glow Plug Sleeve
• Glow plug sleeves are used to keep coolant from coming in
direct contact with the glow plugs and to seal coolant from
the combustion chamber.
Glow Plug Sleeve
• The glow plug sleeve is replaceable. See unique service
procedures or the service manual for more details.
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Degas Bottle
• The degas bottle is located on the left side of the engine
compartment and is part of the left side battery tray.
• One of the ports on the bottle is attached to the EGR valve
coolant line (which is supplied from the top of the vertical
EGR cooler). If this port or hose is blocked, damage could
occur to the EGR coolers and/or the EGR valve.
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El ectrical Components
Electrical Components
Components Overview
• The ECM uses information from the sensors
to decide which commands to send to the
actuators, and the glow plug system.
•Sensors
•Actuators
•ECM
•Glow Plug System
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Sensors Overview
• The ECM sends a reference voltage (Vref) of 5.0 volts (external
power) to the pressure sensors and 5.0 volts (internal power)
to the temperature sensors, except for CMP and CKP which
generate voltage through the collapse of a magnetic field.
• The sensor signals are conditioned by the interface circuits within the
ECM. The signals are used as inputs to various control strategies.
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El ectrical Components
AP (Accelerator Pedal Position)
• The AP (Accelerator Pedal) is a three track pedal. The
AP incorporates three potentiometers. Throughout the
movement of the AP the resistance values of the three
potentiometers must agree. During the movement of
the AP if any of the three potentiometer readings do
not agree, the check engine light will illuminate and
the vehicle will continue to perform as normal. If two
signals from the AP are lost the ECM will allow the engine
to idle only and illuminate the check engine light.
• Having three (3) signals for comparison
is an added safety feature.
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El ectrical Components
Baro (Barometric Pressure)
• The ECM supplies a 5 volt reference signal which
the Baro sensor uses to produce a linear analog
voltage signal that indicates pressure.
• The primary function of the Baro sensor is to provide
altitude information so that the ECM can adjust timing, fuel
quantity, glow plug on time, and turbocharger control.
• The Baro sensor is located inside the ECM. If the
sensor fails, the ECM must be replaced.
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El ectrical Components
CKP (Crankshaft Position)
• The crankshaft position signal source is a magnetic pickup
sensor mounted in the right front side of the engine block.
obtained by performing accuracy checks on frequency.
• The ECM needs both the CKP and CMP signal to calculate
engine position. The CKP creates a signal that relates to
crankshaft speed and position relative to TDC (Top Dead
Center). The CMP creates a signal relative to which stroke
the piston is currently on (compression or exhaust).
• The sensor reacts to a trigger wheel positioned on
the crankshaft. The trigger wheel is a 60 minus
2 tooth steel disk with 58 evenly spaced teeth
and a slot that’s width is equivalent to removing
2 teeth (minus 2 slot) that is the SYNC gap.
• The sensor produces sine waves (converted to
square waves via the ECM) for each tooth edge that
breaks the magnetic field created by the permanent
magnet that is in the end of the sensor.
• Crankshaft speed is derived from the
frequency of the CKP sensor signal.
• Crankshaft position can be determined by
the syncronization of the CMP peg signal
to the CKP minus 2 slot signal.
• Diagnostic information on the CKP input signal is
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E
Engine
Chassis
El ectrical Components
Crankshaft Position Sensor
Throttle Body
EGR
Valve
Turbocharger
Actuator
Volume
Control
Valve
Pressure
Control
Valve
CMP (Camshaft Position)
• The ECM needs both the CKP and CMP signal to
calculate engine position. The CMP creates a signal
that the ECM uses to indicate a particular bank.
• The camshaft position signal source is a magnetic pickup
sensor mounted on the left front side of the engine block.
• The sensor reacts to a peg, pressed into the
camshaft at the front of the engine.
• The CMP contains a permanent magnet which creates a
magnetic field, when the magnetic field is broken by the
peg on the camshaft a signal in the form of a sine wave
is created (converted to a square wave by the ECM).
• The peg will pass the sensor once per camshaft revolution,
the sensor will produce a single pulse correspondingly.
• Camshaft speed is derived from the frequency of the CMP
sensor signal.
• Diagnostic information on the CMP input signal is obtained by
performing accuracy checks on signal levels and frequency.
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55
El ectrical Components
ECT (Engine Coolant Temperature)
• The ECT sensor is a two (2) wire thermistor sensor.
• The ECT sensor’s internal thermistor forms a voltage
divider with a pullup resistor inside the ECM.
• The ECT sensor changes resistance when
exposed to different temperatures.
• When the temperature of the coolant decreases,
the resistance of the thermistor increases
and the signal voltage increases.
• When the temperature of the coolant increases,
the resistance of the thermistor decreases
and the signal voltage decreases.
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El ectrical Components
EGRVP (EGR Valve Position)
• The EGRVP sensor is a three (3) wire potentiometer type sensor.
• The ECM supplies a 5 volt reference voltage that the
EGRVP uses to produce a linear analog voltage that
indicates the amount of movement of the valve.
• The ECM monitors EGRVP as the engine is
operating to modulate the EGR valve.
• This is a closed loop function which means that the ECM
continuously monitors the EGRVP to ensure proper valve position.
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El ectrical Components
EOP (Engine Oil Pressure)
• The EOP (Engine Oil Pressure) is a switch
that closes a circuit to ground after engine oil
pressure reaches approximately 5-7psi.
• This switch controls the oil pressure gauge on the
instrument panel. When pressure is above 7psi
the gauge will read normal and if the pressure
drops below 5 psi the gauge will show 0.
• The information from the switch is not sent back to the
ECM in any way and is to be used as a reference only.
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El ectrical Components
EOT (Engine Oil Temperature)
• The EOT sensor is a two (2) wire thermistor type sensor.
• The EOT sensor’s internal thermistor forms a voltage
divider with a pullup resistor inside the ECM.
• The ECM monitors engine oil temperature via the EOT sensor
signal to aid in controlling fuel rail pressure (FRP) and fan control.
• The EOT signal allows the ECM to compensate for oil viscosity
variations due to temperature changes in the operating
environment, ensuring adequate power and torque are available for all operating conditions.
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El ectrical Components
IAT1 (Intake Air Temperature #1)
• The Intake Air Temperature1 (IAT1) sensor is a two wire thermistor
sensor that is located inside the Mass Air Flow (MAF) sensor.
• The IAT1 sensor’s internal thermistor forms a voltage
divider with a pullup resistor inside the ECM.
• The IAT1 sensor’s primary function is to measure intake air
temperature to aid in controlling EVTG and the glow plug system.
• The MAF/IAT1 sensor is mounted in the
intake air piping after the air filter.
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El ectrical Components
IAT2 (Intake Air Temperature #2)
• The IAT2 sensor is a two (2) wire thermistor type sensor.
• The IAT2 sensor changes resistance when
exposed to different air temperature.
• The primary function of the IAT2 sensor is
to provide a feedback signal to the ECM
indicating manifold air temperature.
• The IAT2 sensor’s internal thermistor forms a voltage
divider with a pullup resistor inside the ECM.
• The ECM monitors the IAT2 signal to control
temperature by adjusting other devices.
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El ectrical Components
FRP (Fuel Rail Pressure)
• During engine operation, if the ECM recognizes that the FRP
signal is lower or higher than the value the PCV is trying to
achieve the ECM will set a Diagnostic Trouble Code (DTC) and
illuminate the amber malfunction indicator lamp on the dash.
• The FRP sensor is a (3) wire variable capacitance sensor.
• The ECM supplies a 5 volt reference signal (Vref)
which the FRP sensor uses to produce a linear
analog voltage that indicates pressure.
• The FRP signal to the ECM is one of the signals used
to command the correct injection timing.
• The primary function of the FRP sensor is to provide a feedback
signal to the ECM indicating the pressure of the fuel in the fuel rail.
• This sensor is replaceable.
• The ECM monitors FRP as the engine is operating to modulate
the PCV. This is a closed loop function which means the ECM
continuously monitors and adjusts for ideal FRP determined
by conditions such as load, speed, and temperature.
• The ECM monitors the FRP signal to determine if the
performance of the fuel system is satisfactory.
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El ectrical Components
MAF (Mass Air Flow)
• The Mass Air Flow (MAF) sensor uses a hot wire sensing
element to measure the amount of air entering the engine.
Air passing over the hot wire causes it to cool. This hot
wire is maintained at 200°C (392°F) above ambient
temperature as measured by a constant cold wire.
• The current required to maintain the temperature of
the hot wire is proportional to the mass air flow.
• The MAF sensor then outputs a frequency signal
to the ECM proportional to the air mass.
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El ectrical Components
MAP (Manifold Absolute Pressure)
• The MAP sensor is a three (3) wire variable capacitance sensor.
• The ECM uses the MAP sensor signal to assist in the calculation
of EGR duty cycle, Fuel Delivery, and Throttle Body Position.
• The ECM measures the MAP signal to determine
intake manifold (boost) pressure.
NOTE: Washing a hot engine can have negative effects on this sensor!
NOTE: The 6.0L engine used a remote mounted MAP sensor.
NOTE: Pay special attention to differentiating between the MAP
sensor and the EP sensor, do not interchange them!
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El ectrical Components
EP (Exhaust Pressure)
• The EP sensor is a three (3) wire variable capacitance sensor.
• The ECM supples a 5 volt reference signal which the EP sensor
uses to produce a linear analog voltage that indicates pressure.
• The EP measures exhuast back pressure so that the ECM can control the
EGR, and the high pressure turbocharger via the turbocharger actuator.
NOTE: Washing a hot engine can have negative effects on this sensor!
NOTE: This sensor is gray in color for the 6.4L and black in color for the
6.0L. Some early 6.4L engines may be equipped with black sensors.
Do not interchange 6.0L EP sensors with 6.4L EP sensors, these sensors
are different.
NOTE: Pay special attention to differentiating between the MAP
sensor and the EP sensor, do not interchange them!
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El ectrical Components
FTS (Fuel Temperature Sensor)
• The FTS sensor is a two (2) wire thermistor sensor.
• The FTS sensor’s internal thermistor forms a voltage
divider with a pullup resistor inside the ECM.
• The FTS sensor changes resistance when
exposed to different temperatures.
• When the temperature of the fuel decreases,
the resistance of the thermistor increases
and the signal voltage increases.
• When the temperature of the fuel increases,
the resistance of the thermistor decreases
and the signal voltage decreases.
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El ectrical Components
EGRT Outlet (EGR Cooler Outlet Temperature)
• The EGRT Outlet sensor is a two (2) wire thermistor type sensor.
• The EGRT outlet sensor’s internal thermistor forms a
voltage divider with a pullup resistor inside the ECM.
• The ECM monitors exhaust temperature from the
EGRT outlet sensor signal to aid in controlling the
EGR valve position and throttle position.
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El ectrical Components
Control Devices
• The 6.4L Power Stroke® Diesel uses eight (8) control
devices: Pressure Control Valve, Volume Control Valve,
EGR Valve, Turbocharger Actuator, Glow Plug Control
Module, Glow Plugs, Fuel Injectors, and the Throttle Body.
Actuators & Control Modules
•Pressure Control Valve (PCV)
•Volume Control Valve (VCV)
•Exhaust Gas Recirculation Valve (EGR)
•Turbocharger Actuator
•Glow Plug Control Module (GPCM)
•Glow Plugs
•Piezo Electric Fuel Injectors
•Throttle Body
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PCV (Pressure Control Valve)
• The PCV governs the fuel pressure that is
delivered to the fuel injectors via the high
pressure fuel rails and fuel supply tubes.
Pressure Control
Valve (PCV)
• The PCV also acts as a dampening device for the
fluctuations in pressure that occur during fuel delivery
through the pump and the injection process.
• The PCV is controlled by the ECM to maintain optimal fuel
pressure throughout all engine operating conditions.
• The PCV is permanently mounted to the high
pressure pump and is not to be removed.
Removal of the PCV will result in replacement
of the high pressure fuel injection pump.
NOTE: Fuel caps have been left off for visualization
purposes. Always use fuel caps when
servicing the high pressure fuel system!
121
VCV (Volume Control Valve)
• The VCV regulates the delivery of fuel from the internal
transfer pump (ITP) to the high pressure pumping elements.
Volume Control
Valve (VCV)
• The VCV adjusts the low pressure side of the system to
match the needs of the engine thus increasing efficiency.
• The VCV is permanently mounted to the high
pressure pump and is not to be removed.
Removal of the VCV will result in replacement
of the high pressure fuel injection pump.
NOTE: Fuel caps have been left off for visualization
purposes. Always use fuel caps when
servicing the high pressure fuel system!
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El ectrical Components
Exhaust Gas Recirculation Valve (EGR Valve)
• The EGR valve is used to mix cooled exhaust gases
with intake air to lower emissions and noise.
• The EGR valve is stepper motor controlled
• The valve is powered in both the open and close directions.
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Control Arm
Turbocharger Actuator
• The turbocharger actuator is an electronic motor
that controls the position of the vanes inside of the
high pressure turbocharger’s turbine housing.
• The turbocharger actuator is mounted directly to the
high pressure turbo and is connected to the vanes
inside the turbine housing by a control arm.
Turbocharger
Actuator
124
Throttle Body
Throttle Body
• The throttle body is operated by a stepper
motor controlled by the ECM and assists with
the exhaust aftertreatment system.
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El ectrical Components
ECM (Engine Control Module)
• The ECM, which is mounted behind the engine on the
passenger side cowl, uses sensor inputs to control
actuators and send fueling commands to the fuel inectors.
• The ECM controls the fuel and air management
system on the 6.4L Power Stroke® Diesel.
Engine Connector
126
Glow Plug System
• The glow plug system is used to warm the
air in the cylinders to enhance cold weather
startability and reduce start up smoke.
• The glow plug system is ECM controlled,
and powered by the GPCM.
127
Glow Plug Control Module(GPCM)
& Glow Plug Harness
• The GPCM is a unit that controls the glow plugs
in order to warm the air in the cylinders.
• The GPCM uses a glow plug enable signal to turn the
glow plugs on for a time controlled by the ECM.
• The GPCM is capable of diagnosing a problem with one
glow plug and then sending a diagnostic signal to the ECM.
GPCM
• It also has the ability to turn off one glow plug
if a short is detected in that circuit.
Glow Plug Harness
• Each bank of glow plugs is connected to
the engine wiring harness via a glow plug
harness, either left bank or right bank.
• The glow plug harness has four connectors that
supply power to the glow plugs and seal oil from
escaping through the glow plug access holes.
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Chassis Connector
El ectrical Components
Glow Plug
• The glow plug is used to heat the air in the cylinder.
• The glow plug utilizes a system of sending voltage
through a resistance coil to create heat.
NOTE: The 6.4L glow plug is very similar to the glow
plug used on the 6.0L Power Stroke® Diesel, but they are
different. The glow plugs must not be interchanged!
NOTE: The 6.4L glow plug uses a green isolator.
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Fuel Injector
• The fuel injector is controlled by an extremely
precise piezo electric actuator that can accomplish
multiple injections per combustion event.
Piezo Actuator
NOTE: Never unplug a fuel injector while the engine
is running, serious engine damage could occur!
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Fuel supply system
Fuel Supply System Features
• The fuel supply system uses a new Horizontal Fuel
Conditioning Module (HFCM). The HFCM filters fuel,
separates water, senses water, and recirculates warm
fuel through the pump during cool fuel conditions.
• The 6.4L Power Stroke Diesel also uses 2 fuel
filters and a stand alone fuel cooler system.
®
Fuel Supply System Features
•Horizontal Fuel Conditioning Module (HFCM)
•(1) Chassis Mounted 10 Micron Fuel Filter
•(1) Engine Mounted 4 Micron Fuel Filter
•Water Separator
•Fuel Cooler
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28
fuel supply system
FUEL FLOW
Engine Fuel Flow
• After the fuel is filtered it is routed to the Internal Transfer Pump (ITP).
• The fuel pump, located in the Horizontal Fuel
Conditioning Module (HFCM), draws fuel from the
fuel tank and through a 10 micron fuel filter.
• The ITP is located inside the high pressure fuel injection pump
and is used to increase the fuel pressure supplied to the high
pressure fuel injection pump’s three (3) internal pistons.
• The HFCM contains the fuel pump, filter, water
separator, water in fuel switch, fuel drain, and
diesel thermo recirculation valve (DTRM).
• After the fuel is pressurized it is routed to the high pressure fuel
rails and to the fuel injectors via high pressure fuel supply tubes.
• The DTRM controls the flow of fuel returned from the engine
mounted filter through the HFCM. If the fuel being drawn from
the fuel tank is cooler than a specified temperature then return
fuel from the engine is recirculated into the inlet of the pump.
• A Pressure Control Valve (PCV) located in the outlet side
of the high pressure fuel injection pump controls the fuel
pressure by dumping excess fuel into the fuel return line.
• A Fuel Rail Pressure (FRP) sensor located in the
right side fuel rail monitors the fuel pressure.
• After the fuel is conditioned by the HFCM, the clean pressurized
fuel is sent to the engine mounted fuel filter assembly where
particles larger than 4 micron are filtered out of the fuel.
• Return fuel from the injectors is routed through a drilled passage
from each cylinder head where it is then united with return fuel
from the high pressure fuel injection pump before being sent
to the fuel cooler and back to the engine mounted fuel filter.
• The engine mounted fuel filter assembly also regulates fuel
pressure by releasing excess pressure via a return fuel line
back to the HFCM. The engine mounted fuel filter also contains
air bleed orifices to remove air and return it to the tank.
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29
fuel supply system
HFCM (Horizontal Fuel Conditioning Module)
• The HFCM is mounted to the frame rail on the drivers side.
• The HFCM is a single module that performs multiple
tasks. It separates water from the fuel, senses
when water is present in the fuel, filters particulates
from the fuel, and creates the fuel flow needed to
supply fuel to the engine mounted fuel filter.
• A DTRM (Diesel Thermo Recirculation Module)
is also part of the HFCM. It recirculates fuel that
returns from the engine mounted fuel filter back
into the fuel filter instead of back to the tank.
Fuel Pump
Power
Drain Valve
Water In Fuel Sensor
51
HFCM Components
Fuel Cap
Fuel Pump
Fuel Filter
• The HFCM is composed of six (6) main components:
- Housing
- Fuel Filter (10 micron)
- Fuel Cap
- Electric Fuel Pump
- Manifold (contains the fuel inlet check valve)
- Diesel Thermo Recirculation Module (DTRM) is also part of the HFCM. It recirculates fuel that returns from the engine mounted fuel filter back into the fuel filter instead of back to the tank.
DTRM
Fuel Inlet
Check Valve
Manifold
52
HFCM Fuel Flow
• Fuel is drawn into the HFCM from the fuel tank via a supply line.
Fuel Return
to Tank
Fuel Return Directed via DTRM
to Tank or Back Through Pump
Fuel Return
to HFCM
• Fuel enters the filter housing via a one-way check valve.
• Once in the filter housing, water is separated from
the fuel. If large amounts of water are found in the
fuel, a sensor in the separator warns the operator of
this condition by illuminating a light on the dash.
Pump
Outlet
• Fuel is then drawn through the 10 micron
fuel filter and into the fuel pump.
• Conditioned pressurized fuel is then supplied to the engine
mounted fuel filter via a fuel supply line. The pump has
an internal regulator that limits fuel pressure to 24psi.
• Fuel returning from the pressure regulator on the engine
mounted fuel filter comes into the HFCM and a DTRM
either allows the fuel to return to the tank or returns it
to the unfiltered side of the fuel filter in the HFCM. The
DTRM starts to open (recirculating fuel back into the
pump) at 80°F (27°C) and is fully open at 50°F (10°C).
Fuel Supply
to HFCM
To Filter/Pump
(suction side)
NOTE: Drilled Passage Hidden
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Fuel Supply
to Engine
supply system
fuel fuel
supply
system
Engine Mounted Fuel Filter
• An engine mounted fuel filter is mounted
to the intake manifold.
Filter Cap
• The engine mounted fuel filter is a 4
micron cartridge style filter.
• It also incorporates a fuel pressure regulator
(in the standpipe) and an air bleed. Fuel from
the regulator is returned to the HFCM.
Engine Mounted
Fuel Filter
NOTE: Please exercise extreme cleanliness
when servicing the fuel filter.
Filter Housing
54
Fuel Pressure
Regulator Located
Inside Standpipe
Assembly
Fuel Pressure Regulator
• The fuel pressure regulator is located inside the
engine mounted fuel filter housing in the standpipe.
• It regulates fuel pressure by routing unfiltered
fuel from the filter housing to the HFCM via
a spring loaded poppet style valve.
Fuel Supply
Filtered Fuel
Outlet
Fuel Return
from Cooler
• The cracking pressure (pressure at which the valve
begins to open) of the valve is 2psi +\- 0.5psi. Actual
fuel pressure may be above or below this specification.
• The regulated pressure of the valve is
3psi+/- 0.5psi. Actual fuel pressure may
be above or below this specification.
NOTE: The fuel pressure regulator is NOT serviceable
separate from the housing! If the regulator needs to be
replaced, then the entire housing must be replaced.
Fuel Temperature
Sensor (FTS)
Fuel Return to Tank
55
Fuel Return Banjo Fittings
• The fuel return lines (located on the front of
each cylinder head) utilize a banjo bolt to route
the return fuel back to the fuel system.
NOTE: The 6.0L Power Stroke® Diesel utilized a banjo
bolt with a check valve inside. Do not interchange the 6.0L
banjo bolt with the 6.4L banjo bolt.
NOTE: The 6.4L Power Stroke Diesel uses an open banjo
bolt with no check valve. The check valves are no longer
needed since the drilled passages in the cylinder heads are
now utilized as fuel return passages.
Fuel Return Banjo Bolt
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Lubrication Sy stem
Lubrication System Features
Lubrication System Features
•Integrated Oil Cooler
• The 6.4L Power Stroke® Diesel uses an oil cooler that is
mounted in the valley of the engine under the oil filter.
• The oil filter is a cartridge style filter mounted
on the top of the engine for ease of service. This
system also incorporates a valve that drains the
oil to the pan when the filter is removed.
•No External Oil Passages in Crankcase
•Easy Access Cartridge Style Oil Filter
•External Oil Pressure Regulator
• The gerotor oil pump and oil pressure regulator are both
located in the front of the engine behind the vibration
damper in their own removeable aluminum housing.
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21
Lubrication Sy s tem
Lubrication System Oil Flow
• Oil is drawn from the oil pan through the pick-up tube. The
oil is then routed through a passage cast into the upper oil
pan before being routed through a passage in the block, a
passage in the front cover, and finally to the oil pump inlet.
• The two (2) other passages are to the tappet oil
supply on the right and left banks. The tappet galleries
also provide oil to the piston cooling jets.
• The regulator valve utilizes a force, provided via the regulator
spring, to apply a pressure equal to 65 psi. Whenever oil pressure
exceeds this force, the regulator valve will move downward
and allow the excess pressure to bleed off back through a
passage that routes the oil back to the inlet side of the pump.
• Another cross drilling vertically up from each main
bearing supplies oil to the camshaft bearings.
• From the oil pump, oil is directed to the oil
cooler and then to the oil filter.
• Cross drillings off of the right bank tappet
gallery supply oil to the main bearings.
Note: This oil supply routing is different than the 6.0L
and uses different bearings which are also placed
differently with respect to the oil holes.
• From the oil filter the oil is supplied to a chamber incorporating
five (5) passages. One (1) is to the turbochargers for
lubrication. Two (2) are to the EOT and EOP sensors.
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22
Lubrication s ys tem
Pick-up Tube / Oil Aeration
Pick-up Tube
Upper Oil Pan
• The pick-up tube supplies oil from
the oil pan to the oil pump.
• The pick-up tube is sealed to the upper oil pan
utilizing an o-ring. If the o-ring is damaged
or missing, it could cause oil aeration.
36
Oil Pressure Regulator
• The oil pressure regulator is located in the gerotor
housing just to the right (when looking at the
engine from the front) of the gerotor oil pump.
• The oil pressure regulator is calibrated to
open at pressures above 65 psi. It should
be closed below that pressure.
Regulator
Housing
Oil Pump
• The regulator valve utilizes a force, provided via the
regulator spring, to apply a pressure equal to 65
psi. Whenever oil pressure exceeds this force, the
regulator valve will move downward and allow the
excess pressure to bleed off back through a passage
that routes the oil back to the inlet side of the pump.
Oil Pressure Regulator
37
Inner Gear
Outer Gear
Gerotor Oil Pump
• The gerotor oil pump is driven off of the
flats on the nose of the crankshaft.
• The gerotor oil pump and regulator valve are
held in their own removeable housing.
Alignment Dowels
Dowel Locations
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23
Lubrication Sy s tem
Oil Cooler Flow
Inlet/Anti-Drainback Valve
Oil Cooler Bypass Valve
Drain Valve
Oil Filter Base
Oil Cooler Cover
Oil Cooler
Uncooled/Unfiltered Oil
Cooled/Unfiltered Oil
Cooled/Filtered Oil
Filter Drainback Oil
Lube System Flow: Oil Cooler
• After being cleaned via the oil filter, the oil is routed through
the oil filter base and into a cavity that has ports to direct
the oil to the follwing areas: left and right oil galleries,
turbocharger oil supply, and the EOT & EOP sensors.
• Uncooled/Unfiltered oil is directed out of the crankcase at the front
left corner of the engine via a drilled passage from the oil pump.
• Uncooled/Unfiltered oil is then directed across the
oil cooler cover then down into the oil cooler.
Note: There is a drain valve inside the oil filter base which is held
closed by the oil filter whenever the oil filter cap is tight. Whenever
this cap is loosened, the valve is allowed to open and oil will then
escape through this valve, through the oil cooler cover, and then
down through a drilled passage in the crankcase to the oil pan.
• The oil is then cooled via the oil cooler as it passes
through the cooler towards the front of the engine.
• The cooled/unfiltered oil is routed up through the oil cooler cover
then through the oil filter base where it enters the oil filter housing
(there is a small inlet valve in the oil filter base that the oil must
pass through to keep the oil from draining out of the filter housing
during non-operation). At this point the oil flows through the filter
(from the outside of the filter to the center) where it is cleaned.
Note: There is an oil cooler bypass valve inside the oil
fllter base which will open and let uncooled oil bypass
the oil cooler and enter the oil filter housing whenever
a pressure differential of 25 psi is reached.
Note: There is an oil filter bypass valve located at the top of
the oil filter stand pipe (plastic tube the oil filter slides over)
which will open and allow unfiltered oil to enter the system
whenever a pressure differential of 27 psi is reached.
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24
l ubrication s ystem
One Piece Gasket
Front Cover
• Oil flows from the crankcase to the oil pump
via a passage through the upper oil pan,
front cover, and oil pump housing.
• When the oil pump is turned by the crankshaft it creates oil
flow and pushes oil through two passages. One passage
is to the oil cooler and the other is through the oil pressure
regulator then to the oil pump inlet (this passage is only
used when pressure exceeds 65 psi). When the oil reaches
the numerous restrictions throughout the engine, pressure
is then created (pressure is the resistance to flow).
Oil Pump Outlet/Oil Cooler Supply
• All of the passages from the front cover to the crankcase
are sealed with a rubber coated metal, one piece gasket.
Oil Pump Inlet
40
Inlet/Anti Drain Back
Turbocharger
Oil Feed
Oil Filter Base
Oil Filter Drain
• The oil filter base contains the mounting provisions
for the oil filter housing and the oil filter stand pipe
(which contains the oil filter bypass valve).
• Inside the oil filter housing, there are the following
valves: Inlet/Anti drainback valve, oil cooler
bypass valve, and the oil filter drain valve.
• The oil filter base also contains the ports for the EOT, EOP,
and turbocharger oil supply. These ports are all connected
with the cooled/filtered oil passage directly beneath them.
EOP
EOT
Oil Cooler Bypass
Diagnostic Port
Supply to Engine
(clean oil from
filter)
41
Oil Cooler Cover
Oil into
Cooler
Coolant out
from Cooler
Oil Filter
Drain
Coolant Into
Cooler
Oil from
Cooler
Coolant Back
to Block
Coolant From WaterPump
Oil From
Pump
Right Oil Supply
Left Oil Supply
25
• The oil cooler cover has passages in it to
direct the flow of coolant and oil.
• Oil is routed from the front of the crankcase to the
rear of the housing where it enters the oil cooler. The
oil passes from the rear of the oil cooler to the front of
the cooler and is cooled in the process. The oil is then
sent to the oil filter through the oil filter base. Filtered
oil is sent to the oil passages in the crankcase, the
turbocharger supply line, and the EOT/EOP sensors.
• The coolant is directed from the front of the crankcase
to the front of the oil cooler. It then passes through the
oil cooler and cools the oil. As the coolant exits the front
of the cooler it is directed down into the coolant stream
where it re-enters the crankcase cooling system.
Note: If the oil cooler is damaged it could cause
contamination of the lubrication and cooling systems.
42
l ubrication system
Back Side of Pump
Oil Pump Flow (back side)
• The oil pump is a gerotor style pump driven off of
the flats on the front of the engine’s crankshaft.
• The 6.4L oil pump is held in its own removeable aluminum
housing which also contains the regulator valve.
Outlet to
Oil Cooler
• Oil is drawn into the pump via the combination of
atmospheric pressure (applied to the oil in the pan)
and the low pressure area that is created between the
gerotor gears on the inlet side of the pump whenever
the pump is being driven by the crankshaft.
Pump Rotation
• Once this happens, the oil will flow into the pump and
the pump will create a generous amount of oil flow.
• When the oil reaches various restriction
throughout the engine, pressure is created.
• Pressure is limited via a pressure regulator valve located
inside the pump housing. Whenever a pressure of 65
psi is reached, the regulator valve will open and allow
pressurized oil to flow back through a relief passage to the
inlet side of the pump, thus regulating system pressure.
43
Oil Filter
Regulator
Valve
Relief Passage
Inlet From Oil Pan
Oil Filter Element
• The 6.4L Power Stroke Diesel uses a cartridge
style oil filter, located on the top of the engine.
®
• When the oil filter is removed, the oil filter
housing drain valve is automatically opened to
drain most of the oil from the housing.
• The oil filter element snaps into the oil filter lid.
Note: The oil filter lid should be removed before
draining the oil from the oil pan so that the oil can
drain from the filter housing into the oil pan.
44
Low Pressure Turbocharger
Oil Supply
Turbocharger Oil Supply
• Oil is supplied to the turbochargers from the oil filter
base via a steel oil line, a steel T fitting, and two
separate steel lines to each turbo (the high pressure
turbocharger oil supply line has a flexible link in it).
• The oil lines are connected to each turbo via
banjo fittings and washer gaskets.
Note: The washer gaskets (which are used as a gasket
medium) must be replaced each time the banjo fittings are
loosened.
High Pressure Turbocharger
Oil Supply
45
26
l ubrication system
Turbocharger Oil Drain Tubes
High Pressure Turbocharger
Oil Drain
• Oil is supplied to the turbochargers to
lubricate and cool the bearings.
• Each turbocharger has it’s own drain. The high pressure
turbocharger uses a removeable tube where as the low
pressure turbocharger utilizes a small extension tube off
of a machined passage in the turbocharger pedestal.
• The high pressure turbocharger drain tube is sealed
via two (2) O-rings, one at each end of the tube.
• The low pressure turbocharger drain extension
tube is sealed via a rubber coated metal tube.
Low Pressure Turbocharger
Oil Drain
46
Oil Pan / Bed Plate
Lower Oil Pan
Upper Oil Pan
• The 6.4L Power Stroke® Diesel uses a two piece oil pan.
The lower half is wider than the bottom of the engine to
increase the oil capacity of the system. Due to this wider
oil pan, an upper oil pan is used to adapt the lower pan to
the bed plate. The upper pan also acts as an oil baffle.
• The upper pan is bolted to the bed plate. The bed
plate replaces the individual main bearing caps,
resulting in a more rigid bearing retaining system.
Bed Plate
47
27
6.4L Power Stroke Diesel Engine
®
2008 “F” Series Super Duty
• Engine Description • Systems Overview • Component Location • Technician Tips •
FOR WARD
This publication is intended to provide technicians and service personnel with an overview of
technical advancements in the 6.4L POWER STROKE® DIESEL Engine. The information contained in
this publication will supplement information contained in available service literature.
IMPORTANT SAFETY NOTICE
Appropriate service methods and proper repair procedures are essential for the
safe, reliable operation of all motor vehicles, as well as, the personal safety of
the individual performing the work. This manual provides general directions for
accomplishing service repair work with tested, effective techniques. Following the
directions will assure reliability. There are numerous variations in the procedures;
techniques, tools, parts for servicing vehicles and the skill of the individual doing
the work. This manual cannot possibly anticipate all such variations and provide
advice or cautions as to each. Accordingly, anyone who departs from the instructions
provided in this manual must first establish that they do not compromise their
personal safety or the vehicle integrity by their choice of methods, tools or parts.
The following list contains some general WARNINGS that you should follow when you
work on a vehicle.
Always wear safety glasses for eye protection.
Always perform work in a well ventilated area.
Use safety stands whenever a procedure requires you to be under the vehicle.
Be sure that the ignition switch is always in the OFF position, unless otherwise
required by the procedure.
Never perform any service to the engine with the air cleaner removed and the engine
running unless a turbocharger compressor inlet shield is installed.
Set the parking brake when working on the vehicle. If you have an automatic
transmission, set it in PARK unless instructed otherwise for a specific service
operation. If you have a manual transmission, it should be in REVERSE (engine OFF) or
NEUTRAL (engine ON) unless instructed otherwise for a specific service operation.
Operate the engine only in a well-ventilated area to avoid the danger of
carbon monoxide.
Keep yourself and your clothing away from moving parts when the engine is running,
especially the fan, belts, and the turbocharger compressor.
To prevent serious burns, avoid contact with hot metal parts such as the radiator,
turbocharger pipes, exhaust manifold, tail pipe, catalytic converter and muffler.
Do not smoke while working on the vehicle.
To avoid injury, always remove rings, watches, loose hanging jewelry, and loose
clothing before beginning to work on a vehicle. Tie long hair securely behind the head.
Keep hands and other objects clear of the radiator fan blades.
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6.4L POWER STROKE ® DIESEL
TABLE OF CONTENTS
OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horsepower & Torque . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
6
7
8
COMPONENT LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
COOLING SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Internal Coolant Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
External Coolant Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Coolant Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
LUBRICATION SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Base Engine Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
System Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
FUEL SUPPLY SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
System Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
AIR MANAGEMENT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
System Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Series Sequential Turbocharger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
EGR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
FUEL MANAGEMENT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
System Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
High Pressure Fuel Injection Pump Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Piezo Fuel Injectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Stages of Injection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
ELECTRICAL COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Control Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Glow Plug Control Module (GPCM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
UNIQUE SERVICE PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Torque Charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Diagnostic Trouble Codes (DTC’s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
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6.4L
®
Power Stroke Diesel
Direct Injection
Turbocharged
Diesel Engine
6.4L POWER STROKE ® DIESEL over view
6.4L Power Stroke Diesel Overview
6.4L Power Stroke Diesel
Direct Injected Turbocharged
Diesel Engine Overview
• This publication is not intended to replace the Service Manual
but to introduce the 6.4L Power Stroke® Diesel Engine.
•Engine Features
•Horsepower & Torque
•Engine Specifications
•Physical ID
•Labeling
1
Engine Features
Engine Features
• The 6.4L Power Stroke Diesel has been designed to meet
the tougher emissions standards set by the government.
• The 6.4L Power Stroke Diesel has been designed
to meet the customers’ expectations of high
horsepower and torque over a wide RPM range.
• Meeting the more stringent customer and regulated
demands are accomplished in part by: High Pressure
Common Rail Fuel System, Series Sequential Turbocharger
System, 4 valves per cylinder, and a dual timing system.
•High Pressure Common Rail Fuel System
•Series Sequential Turbocharger
•4 Valves per Cylinder
•Rear Gear Train
•Dual Timing System
2
Horsepower & Torque
• The 6.4L Power Stroke Diesel creates 350 horsepower
at 3000rpm and 650 lb/ft of torque at 2000rpm.
3
6.4L POWER STROKE ® DIESEL over view
6.4L Power Stroke Diesel Specifications
Engine Type ...........................................................................................Diesel, 4 Cycle
Configuration ................................................................4 OHV/1 Cam-in-Crankcase-V8
Displacement .....................................................................................390 cu. in. (6.4L)
Bore & Stroke ................................................................3.87 X 4.134 (98.2 X 105 mm)
Compression Ratio .............................................................................................17.5:1
Aspiration .................................................................Series Sequential Turbo with CAC
Rated Power @ RPM ..........................................................................350 @ 3000 RPM
Peak Torque @ RPM ...........................................................................650 @ 2000 RPM
Engine Rotation, Facing Flywheel ....................................................Counter Clockwise
Combustion System ...................................High Pressure Common Rail Direct Injection
Total Engine Weight (auto with oil) ................................................1130 lb. (498.95 kg)
Coolant Flow (to radiator)....................................125 gal/min (473 L/min) @ 3000 RPM
Air Flow @ RPM (compressor inlet).......................744 CFM (21.1 m3/min) @ 3000 RPM
Exhaust Flow @ RPM (engine outlet)..................1962 CFM (55.6 m3/min) @ 3000 RPM
Oil Flow @ RPM .....................................................13 gal/min (59 L/min) @ 3000 RPM
Cooling System Capacity (engine only) ..................................................25.3 qts (24 L)
Lube System Capacity (including filter) ................................................15 qts. (14.2 L)
Firing Order ........................................................................................1-2-7-3-4-5-6-8
Specifications
• The cylinders of the 6.4L Power Stroke Diesel are
numbered from the front on the right side 1,3,5,7
and from the front on the left side 2,4,6,8.
4
6.4L POWER STROKE ® DIESEL over view
Engine Serial Number
• The engine serial number is located on the left rear corner
of the crank case on a half moon machined surface.
• A white sticker is placed over this number during production,
this sticker was removed for illustration purposes.
• 6.4 - is the engine family identifier.
• HU2Y - is a manufacturing designator
Ex: HU2Y or HU2U “Y designates Huntsville, AL and U designates Indianapolis, IN”
• 0385535 - is a sequential build number
5
Serial Number Label
• Located on the top of the vertical EGR cooler.
• States the engine serial number.
- example at right, “0385535”
• States the engine family.
- example at right, “6.4L DI turbo diesel”
6
Emissions Label
• States the horsepower rating for the engine,
programmed in the Engine Control Module (ECM).
• Depicts where the engine meets or
exceeds emission standards.
• Shows the engine displacement.
• Is affixed to the right hand valve cover.
• F250/350 labels are red.
• F450/550 labels are blue.
7
C omponent LOCATIONS
3
4
Front of Engine
1)ECT Sensor
2)Fuel Return Line
3)EGR Cooler Vertical
4)EGR Throttle
2
1
8
2
5
4
Left Front of Engine
1)EGR Cooler Horizontal
2)EGR Cooler Vertical
3)Coolant Supply for Horizontal Cooler
4)Coolant Supply for Vertical Cooler
1
3
5)Turbocharger Outlet
9
Left of Engine
C ompo nent LOCATIONS
1
3
8
6
1)Thermostat Housing Outlet
2)CMP Sensor
3)Oil Level Gauge
4)Fuel Supply Line
5)Fuel Return Line
6)EP Sensor
7)Glow Plug Harness
8)Heater Return Line
9)Degas Bottle Return Line
9
2
10
7
5
2
Left Rear of Engine
1)EP Sensor
2)Turbocharger Crossover Tube
11
10
4
1
C omponent LOCATIONS
2
5
3
Rear of Engine
1)Exhaust Expansion Joints
2)Catalyst
3)Lifting Eye
4)Serial Number
5)Turbocharger Outlet to Exhaust System
1
4
12
Right Rear of Engine
1)Block Heater
2)EGRT Inlet Sensor
2
1
13
11
Right Side of Engine
C ompo nent LOCATIONS
2
5
3
1)CKP Sensor
2)Glow Plug Control Module
3)Crankcase Ventilation/Oil Separator
4)Oil Seperator Drain Tube
5)Heater Supply
4
14
1
Right Front of Engine
1)Injector Electrical Connector
2)Throttle Body
15
12
1
2
C omponent LOCATIONS
4
5
6
Top of Engine
7
1)High Pressure Turbocharger
8
2)Low Pressure Turbocharger
3)Turbocharger Oil Supply Line
4)EGR Valve Coolant Supply Port
5)EGR Valve Coolant Return Port/Deaeration Port
6)EGRT Outlet Sensor
7)MAP Sensor
8)IAT 2 Sensor
2
1
3
16
2
1
Top of Engine
9
1)Oil Filter
7
2)Engine Mounted Fuel Filter
3)Catalyst
4)Fuel Cooler
5
5)Fuel Cooler Coolant Tank
6)Fuel Return Hot (inlet to cooler)
7)Fuel Return Cold (outlet from cooler)
8)LH High Pressure Fuel Line
9)EGR Valve
10) ECM Connection
4
6
8
3
10
17
13
6.4L POWER STROKE ® DIESEL over view
High Pressure Common Rail Fuel System
• The 6.4L Power Stroke Diesel engine uses a
high pressure fuel injection pump to deliver fuel
to each piezo electric fuel injector via a high
pressure common fuel rail, one rail per bank.
18
Cylinder Head & Head Bolts
Intake Valves
Injector Nozzle
Exhaust Valves
Glow Plug
• The 6.4L Power Stroke Diesel uses a four (4) valve per
cylinder head design to optimize airflow and efficiency.
• The 6.4L Power Stroke Diesel engine uses larger head bolts
than the 6.0L Power Stroke Diesel engine (M16 vs M14).
• The 6.4L head bolts are also slightly shorter than the
6.0L head bolts. The 6.4L head bolts do not retain
the rocker carrier like the 6.0L head bolts do.
6.4L (M16)
19
6.0L (M14)
Fulcrum Plate & Rocker Arms
• The fulcrum plate, which holds the rocker
arms, is bolted to the rocker pedestal.
• The two (2) bolts that secure the fulcrum plate pass
through the fulcrum plate and the rocker pedestal
and are then secured into the cylinder head.
Fulcrum Plate
20
14
6.4L POWER STROKE ® DIESEL over view
Rocker Pedestal
Rocker Pedestal
• The rocker pedestal is secured independent of
the cylinder head bolts, which no longer need to
be removed to service the rocker arms.
21
High Pressure Fuel Injection Pump &
Rear Geartrain
• The geartrain for the crankshaft, camshaft, and
the high pressure fuel injection pump are located
in the rear of the engine under the rear cover.
High Pressure Fuel
Injection Pump Gear
• This allows for the high pressure fuel pump to be
mounted inside the engine and also reduces noise.
• The high pressure fuel injection pump turns
at a ratio of 1:1 with crankshaft speed.
Camshaft Gear
NOTE: The helical cut gears used on the 6.4L
differ from those used on the 6.0L.
Crankshaft Gear
22
6.4L vs 6.0L Flexplate
6.4L 8 holes
• The flexplate for the 6.4L automatic equipped engine
uses an 8 bolt torque converter bolt pattern.
6.0L 6 holes
• The flexplate for the 6.0L automatic equipped engine
uses a 6 bolt torque converter bolt pattern.
NOTE: Yellow circle added for bolt circle reference.
23
15
6.4l dit appendix
TABLE OF CONTENTS
Torque Charts....................................................... 82-87
Wiring Diagram.................................................... 88-89
Diagnostic Codes............................................... 90-101
81
special torque chart (reference only)
Note: All torque specs are ±10% unless stated otherwise.
COMPONENT
STANDARD
METRIC
Bedplate mounting bolts (crankcase bolts)
Figure C
Figure C
Camshaft follower guide bolt/washer
114 lbf/in
13 Nm
Camshaft position (CMP) sensor
114 lbf/in
13 Nm
Camshaft thrust plate mounting bolts
23 lbf/ft
31 Nm
Connecting rod bolt (Initial)
33 lbf/ft
45 Nm
Connecting rod bolt (Final)
50 lbf/ft
68 Nm
Coolant (block) heater
30 lbf/ft
41 Nm
Coolant pump mounting bolts
23 lbf/ft
31 Nm
Coolant pump pulley mounting bolts
23 lbf/ft
31 Nm
114 lbf/in
13 Nm
Crankcase breather drain fitting to crankcase
18 lbf/ft
25 Nm
Crankcase breather tube clip bolt
23 lbf/ft
31 Nm
Crankcase coolant drain plug (M16)
180 lbf/in
20 Nm
Crankshaft position (CKP) sensor
114 lbf/in
13 Nm
Cylinder head bolts (only use new bolts, note 3)
Figure A
Figure A
Crankcase breather to valve cover
EGR cooler inlet temperature sensor (EGRT Inlet)
32 lbf/ft
44 Nm
EGR coolant system hose clamps
31 lbf/in
3.5 Nm
EGR cooler outlet temperature sensor (EGRT Outlet)
28 lbf/ft
38 Nm
EGR DOC tube to RB up-tube bolts & nuts
23 lbf/ft
31 Nm
EGR DOC tube to EGR cooler horizontal bolts
23 lbf/ft
31 Nm
EGR cooler band clamps
Figure K
Figure K
EGR cooler vertical to EGR valve housing bolts
23 lbf/ft
31 Nm
EGR cooler vertical bracket mounting bolts
23 lbf/ft
31 Nm
EGR cooler horizontal to EGR cooler vertical flange
23 lbf/ft
31 Nm
EGR throttle body to EGR valve housing
88 lbf/in
10 Nm
EGR valve housing to intake manifold
88 lbf/in
10 Nm
EGR valve to EGR valve housing
88 lbf/in
10 Nm
Engine coolant temperature sensor (ECT)
159 lbf/in
18 Nm
Engine oil pressure switch (EOP)
124 lbf/in
14 Nm
Engine oil temperature sensor (EOT)
159 lbf/in
18 Nm
Exhaust backpressure (EP) connector to DOC tube
20 lbf/ft
27 Nm
Exhaust backpressure (EP) tube bracket nut
80 lbf/in
9 Nm
Exhaust backpressure (EP) tube nut to EP sensor
180 lbf/in
20 Nm
Exhaust backpressure (EP) tube nut to exhaust connector
180 lbf/in
20 Nm
Exhaust manifold flange studs
159 lbf/in
18 Nm
Exhaust manifold heat shield mounting bolts & nut
88 lbf/in
10 Nm
Exhaust manifold heat shield spacers to stud bolts
88 lbf/in
10 Nm
Exhaust manifold mounting bolts and stud bolts (note 4)
Figure F
Figure F
Exhaust up-tube to exhaust manifold nuts
23 lbf/ft
31 Nm
Exhaust up-tube to turbo bolts
18 lbf/ft
24 Nm
Flywheel/flexplate bolts (only use new bolts, note 3)
Figure B
Figure B
Front cover mounting bolts
23 lbf/ft
31 Nm
114 lbf/in
13 Nm
Fuel filter cap
Fuel cooler reservoir mounting bolts
20 lbf/ft
27 Nm
Fuel fitting banjo bolt with copper washer (M12)
28 lbf/ft
38 Nm
Fuel fitting banjo bolt with steel washer w/viton insert (M12)
18 lbf/ft
25 Nm
Fuel fitting banjo bolt (M14)
35 lbf/ft
47 Nm
Fuel injector hold down clamp bolts
28 lbf/ft
38 Nm
Fuel injector return tube nut to check valve
28 lbf/ft
38 Nm
Fuel return passage plug (rear of cylinder head)
20 lbf/ft
27 Nm
Fuel rail pressure sensor (FRP)
Figure L
Figure L
Fuel supply and return tube clamp to upper oil pan
23 lbf/ft
31 Nm
82
special torque chart (reference only)
COMPONENT
STANDARD
METRIC
Glow plug
124 lbf/in
14 Nm
Glow plug control module bolts and nuts (GPCM)
114 lbf/in
13 Nm
High pressure common rail (HPCR) mounting bolts
23 lbf/ft
31 Nm
Figure G, I
Figure G, I
High pressure fuel injection pump & pump-to-rail tube installation
Figure H
Figure H
High pressure fuel injection pump cover mounting bolts
114 lbf/in
13 Nm
High pressure fuel injection pump drive gear bolt
57 lbf/ft
78 Nm
High pressure fuel injection pump mounting bolts
45 lbf/ft
62 Nm
High pressure fuel tube nuts (all)
144 lbf/in
30 Nm
Intake manifold pressure sensor (MAP)
106 lbf/in
12 Nm
Intake air temperature 2 (IAT2) sensor
124 lbf/in
14 Nm
Intake manifold bolts and stud bolts
Figure D
Figure D
Lifting eye bolts
45 lbf/ft
62 Nm
Oil cooler to crankcase mounting bolts (M8)
23 lbf/ft
31 Nm
Oil filter base to cooler cover screws (M6 thread forming)
89 lbf/in
10 Nm
Oil filter cap
18 lbf/ft
25 Nm
Oil filter housing to filter base bolts
16 lbf/ft
22 Nm
Oil filter stand pipe bolt (M5 thread forming) W/new oil cooler
61 lbf/in
7 Nm
High pressure common rail (HPCR) to fuel injector tubes
Oil filter stand pipe bolt (M5 thread forming) reusing existing oil cooler
30 lbf/in
3 Nm
Oil pan bolt - lower pan
114 lbf/in
13 Nm
Oil pan bolt - upper pan
114 lbf/in
13 Nm
32 lbf/ft
44 Nm
114 lbf/in
13 Nm
Oil pump housing bolts
16 lbf/ft
22 Nm
Oil pressure regulator plug
26 lbf/ft
35 Nm
Oil pan drain plug (see note 1)
Oil pickup tube bolts
Piston cooling jet mounting bolts (see note 2)
114 lbf/in
13 Nm
Rocker arm assembly bolts
Figure J
Figure J
Rear cover M10 (manual only)
45 lbf/ft
62 Nm
Rear cover M8 (man & auto)
23 lbf/ft
31 Nm
Thermostat housing hold down plate bolts
114 lbf/in
13 Nm
Turbocharger actuator mounting bolt
168 lbf/in
19 Nm
Turbocharger air inlet duct clamp
44lbf/in
5 Nm
Turbocharger pedestal bolts
45 lbf/ft
62 Nm
Turbocharger to pedestal bolts
148 lbf/ft
201 Nm
Turbocharger crossover tube support mounting
79 lbf/in
9 Nm
Turbocharger heat shield bolts
96 lbf/in
11 Nm
Turbocharger oil supply banjo bolts (M12)
28 lbf/ft
38 Nm
Turbocharger oil supply standoff fittings to center housings
35 lbf/ft
47 Nm
Turbocharger oil supply tube retaining bolt to oil cooler
114 lbf/in
13 Nm
Valve cover base bolts
114 lbf/in
13 Nm
Valve cover bolts and studs
80 lbf/in
9 Nm
Vibration damper bolts (note 3) (only use new bolts)
Figure E
Figure E
STANDARD TORQUE CHART
Hex Flange Head
Thread
Torque
Diameter
M6 x 1
114 lbf/in
M8 x 1.25
23 lbf/ft
M10 x 1.5
45 lbf/ft
M12 x 1.75
79 lbf/ft
M14 x 2
127 lbf/ft
M15 x 2
159 lbf/ft
M16 x 2
196 lbf/ft
Torque Chart Notes
Torque
Nm
13
31
62
107
172
216
266
Wrench
Size (mm)
8
10
13
15
1) Lightly coat o-ring with clean engine prior to install.
2) Apply threadlock 262 to bolt threads prior to install.
3) Do not reuse. These bolts are one time stretch to yield.
4) Do not reuse exhuast manifold bolts and studbolts.
21
83
special torque chart (reference only)
FIGURE A: Cylinder Head Bolts
Step 1: Lightly lubricate M16 head bolt threads and washer
faces with clean engine oil prior to assembly.
Step 2: Torque M16 head bolts (labeled 1-10) to 70
lb/ft (95 Nm) in numerrical sequence shown.
Step 3: Back out M16 head bolts and retorque to 115 lb/ft
(156 Nm) one at a time in numerical sequence shown.
Step 4: Tighten M16 head bolts and additional 90
degrees in numerical sequence shown.
Step 5: Tighten M16 head bolts an additional 90 degrees
(2nd time) in numerical sequence shown.
Step 6: Torque M8 head bolts (labeled 11-15) to 18
lb/ft (24 Nm) in numerical sequence shown.
Step 7: Torque M8 head bolts to 23 lb/ft (31 Nm)
in numerical sequence shown.
Note: Head bolts may not be reused once torqued.
Note: If bolt chatter occurs during step
4, repeat step 3 and continue.
FIGURE B: Flywheel Bolts
Step 1: Torque the bolts to 44 lbf/in (5 Nm) in
the numerical sequence shown.
Step 2: Torque the bolts to 69 lbf/ft (94 Nm) in the
numerical sequence shown above.
Note: Flywheel bolts may not be reused once torqued.
FIGURE C: Bedplate Bolts (main bearing bolts)
Step 1: Torque the bolts to 110 lbf/ft (149 Nm)
in the numerical sequence shown.
Step 2: Torque the bolts to 130 lbf/ft (176 Nm)
in the numerical sequence shown.
Step 3: Torque the bolts to 170 lbf/ft (231 Nm)
in the numerical sequence shown.
84
special torque chart (reference only)
FIGURE D: Intake Manifold Bolts
Step 1: Loosely install all bolts in the
numerical sequence shown.
Step 2: Torque bolts to 100 lb/in (11Nm) in
the numerical sequence shown.
Note: Bolt locations with double circles represent stud bolts.
FIGURE E: Vibration Damper Bolts
Step 1: Torque each bolt to 50 lb/ft (68 Nm) in
the numerical sequence shown.
Step 2: Tighten each bolt 90 degrees clockwise
in the numerical sequence shown.
Note: Damper bolts may not be reused once torqued.
FIGURE F: Exhaust Manifold Bolts
Step 1: Torque bolts to 18 lb/ft (25Nm) in the
numerical sequence shown.
Step 2: Repeat the sequence using the same torque.
Note: Exhaust manifold bolts and studbolts
may not be reused once torqued.
85
special torque chart (reference only)
FIGURE G: HPCR Fuel Components Assembly Procedure
Hand start and hand snug tube nuts.
Step 1: Install injectors, clamps and bolts and hand start the clamp bolts.
Step 2: Rundown the injector clamp bolts to a torque of 1.5 lb/ft (2 Nm). Injectors will seat while torquing the bolts.
Note: The injectors must be fully seated and snugged, but moveable for high pressure connector and HP tube alignment.
Step 3: Install the HP rail and hand start two rail mounting bolts.
Note: Rail must be moveable, but not loose.
Step 4: Remove the four plastic caps from the rail high pressure connectors (HPC’s) and four plastic caps from the injector HPC’s.
Step 5: Obtain four “rail to injector” jumper tubes from the packaging.
Step 6: Position the four (one at a time) between the rail and injectors and fully hand start and seat the tube nuts onto
the mating rail and injector HPC’s. Snug the rail and injector tube nuts using the inside-out step sequence
(i.e. two inside nuts then two outside nuts) with a tube nut click wrench set to 1.5 lb/ft (2 Nm).
Step 7: Final torque the injector clamp bolts to 28 lb/ft (38 Nm).
Step 8: Final torque the two M8 rail bolts to 23 lb/ft (31 Nm).
Step 9: Torque the rail and injector tube nuts to 106 lb/in (12 Nm +2 / -0).
Step 10: Place a visible mark with a permanent marker on the tube nut and the high pressure fuel rail and fuel injector
threaded connection. Turn the tube nuts one flat of the nut which is equal to 60 degrees.
FIGURE H: High Pressure Pump and Pump-to-Rail HP Tubes Installation Procedure
Step 1: Install and final torque the high pressure fuel injetion pump to 45 lb/ft (61 Nm).
Step 2: Install the pump cover gasket and make electrical connections between the pump and gasket. Install the pump cover and fasten the bolts.
Step 3: Remove the four plastic caps covering the supply, return, and high pressure rail connectors.
Step 4: Obtain left and right “pump-to-rail” high pressure tubes from the packaging.
Step 5: Position the high pressure tubes between the pump and the rails and fully hand start and seat the tube
nuts onto the mating pump and rails high pressure connections.
Note: Support the tubes while hand snugging the nuts to assure proper assembly of the joints.
Step 6: Snug the tube nuts to 1.5 lb/ft (2 Nm).
Step 7: Torque the pump and rail tube nuts to 106 lb/in (12 Nm +2 / -0).
Step 8: Place a visible mark with a permanent marker on the tube nut and the high pressure fuel rail and the high pressure
fuel injection pump threaded connection. Turn the tube nuts one flat of the nut which is equal to 60 degrees.
FIGURE I: Injector-Pipe-Rail Sub-Assembly Process
Step 1: Place the fuel injectors w/clamps in the head and snug the bolts.
Step 2: Place and snug the fuel rail (leave one thread loose).
Step 3: Place four fuel jumper tubes to injector/fuel rail and start 1-2 threads.
Step 4: Snug injector side tube nuts to 1.5 lb/ft (2 Nm). (Special torque sequence is used, see note below).
Step 5: Snug fuel rail side tube nuts to 1.5 lb/ft (2 Nm). (Special torque sequence is used, see note below).
Step 6: Final torque the fuel rail mounting bolts.
Step 7: Final torque the injector bolts. (Special torque sequence is used, see note below).
Step 8: Final torque the injector side tube nuts to 106 lb/in (12 Nm +2 / -0). (Special torque sequence is used, see note below).
Step 9: Final torque the fuel rail side tube nuts to 106 lb/in (12 Nm +2 / -0). (Special torque sequence is used, see note below).
Step 10: Place a visible mark with a permanent marker on the tube nut and the fuel injector threaded connection. Turn the tube
nuts one flat of the nut which is equal to 60 degrees. (Special torque sequence is used, see note below).
Step 11: Place a visible mark with a permanent marker on the tube nut and the high pressure fuel rail threaded connection. Turn
the tube nuts one flat of the nut which is equal to 60 degrees. (Special torque sequence is used, see note below).
NOTE: Torque the components in the center two cylinders first, then torque the components in the outer two cylinders last.
86
special torque chart (reference only)
FIGURE J: Fulcrum Plate / Rocker Arm Support Assembly
Step 1: Position crankshaft at approximate #1 & #4 cylinder TDC by observing damper dowel pin and
clocking it to the 10:30 position (as viewed from the front of the engine)
Step 2: Determine which cylinder is actually in the firing position by installing pushrods, and observing #3 intake and #8 intake.
Step 3: If #3 intake pushrod shows cam lift, this is the #1 firing position. Torque only fulcrum plates #1,2,7,8 per steps 4-6.
If #8 intake pushrod shows cam lift, this is the #4 firing position. Torque only fulcrum plates #3,4,5,6 per steps 4-6.
Step 4: Partially run down both M10 bolts until they just contact the fulcrum plate.
Step 5: Fully run down and torque inboard (upper) bolt to 45 lb/ft (62 Nm).
Step 6: Fully run down and torque outboard (lower) bolt to 45 lb/ft (62 Nm).
Step 7: Rotate crankshafft 360 degrees to position it at the alternate cylinder TDC (dowel pin at 10:30 position).
Step 8: Identify remaining group of fulcrum plates per step 3, and torque per steps 4-6.
FIGURE K: EGR Cooler Mounting Clamps
Horizontal Cooler
Step 1: Pre-torque EGR clamps to 88lb/in (10 Nm).
Step 2: Loosen clamp nuts two full turns.
Step 3: Final torque to 69 lb/in (8 Nm)
Vertical Cooler
Step 1: Pre-torque EGR clamps to 75 lb/in (8.5 Nm).
Step 2: Loosen clamp nuts two full turns.
Step 3: Final torque to 57 lb/in (6.5 Nm).
FIGURE L: Fuel Rail Pressure Sensor (FRP)
Step 1: Snug the sensor hand tight to 1.5 lb/ft (2 Nm)
Step 2: Place a visible mark with a permanent marker on the sensor and the high pressure fuel rail connection.
Turn the sensor one flat of the sensor base which is equal to 60 degrees.
87
w iring diagram (single alt.) reference only
Refer to Ford Wiring Diagrams for Wiring
88
wiring diagram (single alt.) reference only
Refer to Ford Wiring Diagrams for Wiring
89
diagnostic codes
O - Self Test - Key On Engine Off
R - Key On Engine Running
C - Continuous Operation
REGEN - Test Follows a REGEN CYCLE
SHUT DOWN - Test Follows Key Off
KO - Test Operates at Key On
1PC - Once Per Cycle
DTC
P1111
How Set
O R C
X
P000E
X
X
Code Description
MIL For Both F250/F350 and F450/F550
MIL For Only F250/F350
DATA Color Code
MIL For F250/F350 and Wrench for F450/F550
Wrench for Both F250/F350 and F450/F550
No MIL or Wrench Light
Brief Description
Software Parameters
Required to Set Code
System Pass
Service Instructions /
Part Replaced
PCM, connection to service tool
X
X
Fuel Volume Regulator Control
Adaptive Learning at Limit
This error is set when the Pulse Width Modulated (PWM)
signal for the Volume Control Valve (VCV) is either
too low or too high for current operating modes.
+/- 8% error in VCV control
Low pressure fuel system,
injector leakage
P0A09
X
X
X
DC/DC Converter
Fault Circuit Low
The purpose is to diagnose the analog output
voltage from the DCDC converter (voltage converter
for injectors inside PCM). If the voltage from the
converter is lower than a threshold, the fault is set.
Low: < 42 V
High: >96 V
PCM
P0A10
X
X
X
DC/DC Converter
Fault Circuit High
The purpose is to diagnose the analog output voltage
from the DCDC converter (voltage converter for
injectors inside PCM). If the voltage from the converter
is higher than a threshold, the fault is set.
Low: < 42 V
High: >96 V
PCM
X
X
Fuel Volume Regulator
Control Circuit / Open
This error is recorded when an open circuit causes the Pulse
Width Modulated (PWM) signal of the Volume Control Valve
(VCV) to be abnormally high for an extended period of time.
For open load: Resistance > 500 Ohm
Wiring, VCV electrical system
X
X
Fuel Volume Regulator
Control Circuit Low
During KOEO diagnostics, this error is set when the
measured current through the system is greater than
intended. During the KOER or Continuous Monitor modes,
this code is a result of a short to ground, which causes the
measured current in the system to be lower than expected.
Short to ground: 0 V
> 3A
Wiring, VCV electrical system
X
X
Fuel Volume Regulator
Control Circuit High
This error is set if there is short to ground, short to power,
or an open load detected in the volume control circuit.
Short to plus: 12 V”
Wiring, VCV electrical system
X
MAP - Barometric
Pressure Correlation
This error is set when the difference between
Manifold Absolute Pressure (MAP) and Barometric
Pressure (BP) is greater than the specified
value for a predetermined period of time.
300 hPa < 2.5 sec
Wiring, MAP sensor, BP sensor
(intergral part of PCM)
KO
MAP/EBP Correlation
This error is set when the difference between Maniforld
Absolute Pressure (MAP) and Exhaust Pressure (EP) is greater
than the threshold for a predetermined period of time.
Engine off time > 5.0s.
300 hPa > 5.0 sec
Wiring, EP tube plugged, EP
Sensor, MAP sensor, PCM
P008C
X
Fuel Cooler Pump
Control Circuit / Open
This diagnostic will detect if the relay for the
fuel cooling pump has an open load error.
P008D
X
Fuel Cooler Pump
Control Circuit Low
This diagnostic will detect if the relay for the
fuel cooling pump has grounded.
P008E
X
Fuel Cooler Pump
Control Circuit High
This diagnostic will detect if the relay for the fuel
cooling pump has shorted to positive voltage.
Engine Coolant Temperature /
Fuel Temperature Correlation
This error is set when the difference between Engine
Coolant Temperature (ECT) and Fuel Temperature
(FTS) is either greater than or less than a specified
value depending on current operating modes.
Engine off time > 3600 sec
no block heater detected
20 deg C or -20deg < 1 sec
Wiring, ECT or TFU sensor,
unknown type block
heating device, PCM
X
Fuel Rail/System
Pressure - Too Low
This error will be set if the fuel pressure in the rail is too
low and the controller cannot regulate it to the setpoint.
20 % “overposition” of the
PCV or VCV [% PWM]
5% deviation of the fuel rail pressure
to the fuel rail pressure setpoint.
Low pressure system, wiring to
VCV and PCV, FUP sensor, pump
X
X
Fuel Rail/System
Pressure - Too High
This error will be set if the fuel pressure in the rail is too
high and the controller cannot regulate it to the setpoint.
20 % “overposition” of
the PCV [% PWM]
3% deviation of the fuel rail pressure
to the fuel rail pressure setpoint
Low pressure system, wiring to
VCV and PCV, FUP sensor, pump
P0001
P0003
X
P0004
P0069
P006B
X
X
P008F
X
X
KO
P0087
X
P0088
P0090
X
X
X
Fuel Pressure Regulator
Control Circuit
This error occurs if a short to power is found in
the fuel pressure regulator (PCV) circuit.
For open load: Resistance > 500 Ohm
Wiring to PCV, PCV
electrical system
P0091
X
X
X
Fuel Pressure Regulator
Control Circuit Low
This error occurs if a short to ground or, during the
KOEO self test, a current that is excessively high is
found in the fuel pressure regulator (PCV) circuit.
Short to ground: 0 V
> 3A
Wiring to PCV, PCV
electrical system
P0092
X
X
X
Fuel Pressure Regulator
Control Circuit High
This error occurs if an open circuit is found in
the fuel pressure regulator (PCV) circuit.
Short to plus: 12 V
Wiring to PCV, PCV
electrical system
90
diagnostic codes
DTC
How Set
O R C
Code Description
Software Parameters
Required to Set Code
Brief Description
Service Instructions /
Part Replaced
This error is set when the change in IAT2 is 5ºC less
than specified over a predetermined period of time.
5 deg C
ECT has to change from 40 deg C
to 80 deg C to equal 1 drive cycle.
10 drive cycles required
Wiring, IAT2 sensor, PCM
P0096
X
X
X
Intake Air Temperature Sensor
2 Circuit Range/Performance
P0097
X
X
X
Intake Air Temperature
Sensor 2 Circuit Low Input
This error is set when the IAT2 sensor temperature
output provides a value higher than a maximum probable
temperature (lower voltage reading) for a predetermined
period of time, which indicates a short to ground.
0.17v > 5sec.
Wiring, IAT2 sensor, PCM
P0098
X
X
X
Intake Air Temperature
Sensor 2 Circuit High Input
This error is set when the IAT2 sensor temperature output
provides a value lower than a minimum probable temperature
(higher voltage reading) for a predetermined period of time,
which indicates an open circuit or a short to power.
4.81v > 5sec.
Wiring, IAT2 sensor, PCM
P0101
X
Mass Air Flow A Circuit
Range/Performance
This error occurs when the PCM detects a
MAF sensor that is sending no signal.
P0102
X
Mass or Volume Air Flow
A Circuit Low Input
This error occurs when the value of the mean
period time per ms of the mass air flow sensor
is less than a calibrateable value.
P0103
X
Mass or Volume Air Flow
A Circuit High Input
This error occurs when the value of the mean
period time per ms of the mass air flow sensor
is greater than a calibrateable value.
P0104
X
Mass or Volume Air Flow A
Circuit Intermittent/Erratic
This error occurs when the MAF senor change is
too great over a predetermined period of time.
Wiring, MAF assembly, PCM
P0106
X
Manifold Absolute
Pressure/BARO Sensor
Range/Performance
This diagnostic compares MAP and BP pessures at idle
conditions, when they should be within a specified range.
This error is set if the MAP sensor reading is above or
below the thresholds for a predetermined period of time.
N > function of (ECT)
Vehicle speed =0
ECT> 70 deg C
10% < EGRTP command <100%
no DPF regen requested
for > 10 seconds
300hPa or -300hPa >5sec
P0107
X
Manifold Absolute Pressure/
BARO Sensor Low Input
This diagnostic checks for a minimum intake manifold
pressure, indicating an open circuit or a short to ground.
This error occurs when the MAP signal voltage is lower
than a specified value for a predetermined period of time.
0.15v > 5sec.
Wiring, MAP sensor, PCM
P0108
X
Manifold Absolute Pressure/
BARO Sensor High Input
This diagnostic checks for a maximum possible intake
manifold pressure, indicating a short to power. This
error sets when the MAP signal voltage is higher than a
specified value for a predetermined amount of time.
4.90v > 5 sec.
Wiring, MAP sensor, PCM
P0112
X
Intake Air Temperature
Sensor 1 Circuit Low Input
This error occurs if the input signal from the intake air
temperature sensor falls below a minimum calibrateable
threshold for a predetermined period of time.
0.15v > 5sec
P0113
X
Intake Air Temperature
Sensor 1 Circuit High Input
This error occurs if the input signal from the intake air
temperature sensor rises above a maximum calibrateable
threshold for a predetermined period of time.
4.6v > 5 sec
P0114
X
Intake Air Temperature Sensor
1 Intermittent/Erratic
This error sets if the gradient of measured intake air
temperature sensor outputs is outside of a threshold.
Wiring, MAP sensor, BP sensor
(intergral part of PCM)
P0117
X
X
X
Engine Coolant Temperature
Sensor 1 Circuit Low Input
This error is set when the ECT sensor signal is lower than
the minimum threshold for a predetermined period of time.
0.04v > 1sec.
Wiring, ECT sensor, PCM
P0118
X
X
X
Engine Coolant Temperature
Sensor 1 Circuit High Input
This error sets when the ECT sensor signal is higher than a
maximum threshold for a predetermined period of time.
4.67v > 1 sec.
Wiring, ECT sensor, PCM
X
Coolant Thermostat (Coolant
Temp Below Thermostat
Regulating Temperature)
This error occurs when the ECT sensor signal indicates a
coolant temperature lower than the operating temperature
of the thermostat for an extended period of time.
X
Fuel Delivery Error
This error sets when injections are detected
although they are not commanded.
N/A
PCM, check injectors
P0128
P0148
X
X
P0149
X
P0168
X
P0181
X
P0182
X
X
Fuel Timing Error
PCM
X
Engine Fuel Temperature
Too High
This error occurs when fuel temperature
exceeds a predetermined temperature.
X
Fuel Temperature Sensor A
Circuit Range/Performance
This error occurs when the difference of the minimum
and maximum fuel temperature exceeds a threshold.
X
Fuel Temperature Sensor
A Circuit Low Input
This error occurs when the FTS temperature output
is higher (lower voltage signal) than a maximum
probable temperature, indicating a short to ground.
91
0.07v > 5sec.
Wiring, MAP sensor, PCM
diagnostic codes
O - Self Test - Key On Engine Off
R - Key On Engine Running
C - Continuous Operation
REGEN - Test Follows a REGEN CYCLE
SHUT DOWN - Test Follows Key Off
KO - Test Operates at Key On
1PC - Once Per Cycle
DTC
How Set
O R C
Code Description
MIL For Both F250/F350 and F450/F550
MIL For Only F250/F350
DATA Color Code
MIL For F250/F350 and Wrench for F450/F550
Wrench for Both F250/F350 and F450/F550
No MIL or Wrench Light
Brief Description
Software Parameters
Required to Set Code
Service Instructions /
Part Replaced
P0183
X
X
X
Fuel Temperature Sensor
A Circuit High Input
This error occurs when the FTS temperature output is
lower (higher voltage signal) than a minimum probable
temperature, indicating an open circuit or a short to power.
4.76v > 5 sec.
Wiring, MAP sensor, PCM
P0191
X
X
X
Fuel Rail Pressure Sensor A
Circuit Range/Performance
This error occurs if the voltage signal of rail pressure
sensor is not updated during a calibrated period of time.
checktime is 0.4 s
maximum sensor voltage signal
minus minimum voltage signal
must be greater than 0.01 V
FUP sensor, HP system
X
Fuel Rail Pressure Sensor
A Circuit Low Input
This error occurs if the voltage of the fuel pressure
sensor falls below a calibratable threshold.
Low: < 0.20 V
Wiring to FUP sensor,
FUP sensor
Fuel Rail Pressure Sensor
A Circuit High Input
This error occurs if the voltage of the fuel pressure
sensor exceeds a calibratable threshold.
High: >4.80 V
Wiring to FUP sensor,
FUP sensor
X
Fuel Rail Pressure Sensor A
Circuit Intermittent/Erratic
This error occurs if the rate of change of the measured
fuel pressure exceeds a calibratable threshold.
max gradient: 40Mpa/10ms
Wiring to FUP sensor
(especially for bad
connections), FUP sensor,
possibly HP system
X
Engine Oil Temperature Sensor
Circuit Range/Performance
This error occurs if time required for EOT to warm up to
50º C is greater than the specified value or the EOT does
not change by at least 2 degrees from the value stored
in KAM, followed with the engine running off low idle.
EOT dependant
20minutes of engine running and EOT
has not changed more than 5 deg C
Wiring, ECT sensor, PCM
P0192
P0193
X
P0194
X
X
P0196
P0197
X
X
X
Engine Oil Temperature
Sensor Circuit Low Input
This error occurs if the EOT sensor output value is
higher (lower voltage signal) than a maximum probable
temperature, indicating a short to ground.
0.04v < 5sec.
Wiring, ECT sensor, PCM
P0198
X
X
X
Engine Oil Temperature
Sensor Circuit High Input
This error occurs if the EOT sensor temperature output value
is lower (higher voltage signal) than a minimum probable
temperature, indicating an open circuit or a short to power.
4.76v < 5 sec.
Wiring, ECT sensor, PCM
P02CC
X
X
Cylinder 1 Minimum Fuel Mass
Adaptive Learning at Min Limit
This error sets if the fuel mass estimated by the adaptation
feature falls outside of a calibrated threshold.
P02CD
X
X
Cylinder 1 Minimum Fuel Mass
Adaptive Learning at Max Limit
This error occurs when the absolute fuel mass deviation of
the available fuel mass estimate to the current set point falls
outside of the fuel pressure dependent calibration threshold.
P02CE
X
X
Cylinder 2 Minimum Fuel Mass
Adaptive Learning at Min Limit
This error occurs when the fuel mass estimated by the
adaptation feature falls outside of a calibration threshold.
P02CF
X
X
Cylinder 2 Minimum Fuel Mass
Adaptive Learning at Max Limit
This error occurs when the absolute fuel mass deviation of
the available fuel mass estimate to the current set point falls
outside of a fuel pressure dependent calibration threshold.
P02D0
X
X
Cylinder 3 Minimum Fuel Mass
Adaptive Learning at Min Limit
This error sets if the fuel mass estimated by the adaptation
feature falls outside of a calibrated threshold.
P02D1
X
X
Cylinder 3 Minimum Fuel Mass
Adaptive Learning at Max Limit
This error occurs when the absolute fuel mass deviation of
the available fuel mass estimate to the current set point falls
outside of the fuel pressure dependent calibration threshold.
P02D2
X
X
Cylinder 4 Minimum Fuel Mass
Adaptive Learning at Min Limit
This error occurs when the fuel mass estimated by the
adaptation feature falls outside of a calibration threshold.
P02D3
X
X
Cylinder 4 Minimum Fuel Mass
Adaptive Learning at Max Limit
This error occurs when the absolute fuel mass deviation of
the available fuel mass estimate to the current set point falls
outside of a fuel pressure dependent calibration threshold.
P02D4
X
X
Cylinder 5 Minimum Fuel Mass
Adaptive Learning at Min Limit
This error sets if the fuel mass estimated by the adaptation
feature falls outside of a calibrated threshold.
P02D5
X
X
Cylinder 5 Minimum Fuel Mass
Adaptive Learning at Max Limit
This error occurs when the absolute fuel mass deviation of
the available fuel mass estimate to the current set point falls
outside of the fuel pressure dependent calibration threshold.
P02D6
X
X
Cylinder 6 Minimum Fuel Mass
Adaptive Learning at Min Limit
This error occurs when the fuel mass estimated by the
adaptation feature falls outside of a calibration threshold.
P02D7
X
X
Cylinder 6 Minimum Fuel Mass
Adaptive Learning at Max Limit
This error occurs when the absolute fuel mass deviation of
the available fuel mass estimate to the current set point falls
outside of a fuel pressure dependent calibration threshold.
92
Injector
Injector
Injector
Injector
Injector
Injector
diagnostic codes
DTC
How Set
O R C
Code Description
Brief Description
Software Parameters
Required to Set Code
Service Instructions /
Part Replaced
P02D8
X
X
Cylinder 7 Minimum Fuel Mass
Adaptive Learning at Min Limit
This error sets if the fuel mass estimated by the adaptation
feature falls outside of a calibrated threshold.
P02D9
X
X
Cylinder 7 Minimum Fuel Mass
Adaptive Learning at Max Limit
This error occurs when the absolute fuel mass deviation of
the available fuel mass estimate to the current set point falls
outside of the fuel pressure dependent calibration threshold.
P02DA
X
X
Cylinder 8 Minimum Fuel Mass
Adaptive Learning at Min Limit
This error occurs when the fuel mass estimated by the
adaptation feature falls outside of a calibration threshold.
P02DB
X
X
Cylinder 8 Minimum Fuel Mass
Adaptive Learning at Max Limit
This error occurs when the absolute fuel mass deviation of
the available fuel mass estimate to the current set point falls
outside of a fuel pressure dependent calibration threshold.
P0201
X
Injector Circuit / Open
- Cylinder 1
This error occurs when the maximum
current rise time is exceeded.
Wiring to injector, injector
P0202
X
Injector Circuit / Open
- Cylinder 2
This error occurs when the maximum
current rise time is exceeded.
Wiring to injector, injector
P0203
X
Injector Circuit / Open
- Cylinder 3
This error occurs when the maximum
current rise time is exceeded.
Wiring to injector, injector
P0204
X
Injector Circuit / Open
- Cylinder 4
This error occurs when the maximum
current rise time is exceeded.
Wiring to injector, injector
P0205
X
Injector Circuit / Open
- Cylinder 5
This error occurs when the maximum
current rise time is exceeded.
Wiring to injector, injector
P0206
X
Injector Circuit / Open
- Cylinder 6
This error occurs when the maximum
current rise time is exceeded.
Wiring to injector, injector
P0207
X
Injector Circuit / Open
- Cylinder 7
This error occurs when the maximum
current rise time is exceeded.
Wiring to injector, injector
P0208
X
Injector Circuit / Open
- Cylinder 8
This error occurs when the maximum
current rise time is exceeded.
Wiring to injector, injector
Injector/Injection Timing
Control Circuit
This error occurs if a post injection cycle is
recognized without a main injection cycle.
PCM
This failure occurs when actual engine speed exceeds
governed engine speed for a predetermined amount of time.
4000 rpm
P0216
X
Injector
Injector
P0219
X
Engine Overspeed Condition
P0231
X
Fuel Pump Secondary
Circuit Low
P0232
X
Fuel Pump Secondary
Circuit High
P0234
X
Turbocharger/Supercharger
Overboost Condition
This error occurs when the MAP sensor reading is above
the threshold for a predetermined period of time.
4050hPa > 5 sec
System error, causes
of overboost.
Between 0.3 & 1.8
Injector, cylinder (compression)
P0263
X
X
Cylinder 1 Contribution/Balance
This error occurs when the cylinder balance controller output
has exceeded its allowed minimum or maximum value.
P0266
X
X
Cylinder 2 Contribution/Balance
This error occurs when the cylinder balance controller output
has exceeded its allowed minimum or maximum value.
Injector, cylinder (compression)
P0269
X
X
Cylinder 3 Contribution/Balance
This error occurs when the cylinder balance controller output
has exceeded its allowed minimum or maximum value.
Injector, cylinder (compression)
P0272
X
X
Cylinder 4 Contribution/Balance
This error occurs when the cylinder balance controller output
has exceeded its allowed minimum or maximum value.
Injector, cylinder (compression)
P0275
X
X
Cylinder 5 Contribution/Balance
This error occurs when the cylinder balance controller output
has exceeded its allowed minimum or maximum value.
Injector, cylinder (compression)
P0278
X
X
Cylinder 6 Contribution/Balance
This error occurs when the cylinder balance controller output
has exceeded its allowed minimum or maximum value.
Injector, cylinder (compression)
P0281
X
X
Cylinder 7 Contribution/Balance
This error occurs when the cylinder balance controller output
has exceeded its allowed minimum or maximum value.
Injector, cylinder (compression)
P0284
X
X
Cylinder 8 Contribution/Balance
This error occurs when the cylinder balance controller output
has exceeded its allowed minimum or maximum value.
Injector, cylinder (compression)
P0297
X
Vehicle Overspeed Condition
This error occurs when the vehicle speed
exceeds the vehicle speed limiting.
P0298
X
Engine Oil Overtemperature
Condition
This error occurs when the time required for EOT to cool
down to 110 deg. C is greater than the specified value.
Random Misfire Detected
This error occurs when cylinder deceleration is excessively
large and persists long enough on more than one
cylinder to set the code. Misfire monitor is calibrated
to detect a complete loss of combustion in the cylinder;
therefore, cylinder balance codes can be expected.
P0300
X
93
time dependant on initial EOT
temp could be >15minutes
System error, causes of EOT
overtemperatue, sensor, PCM
diagnostic codes
O - Self Test - Key On Engine Off
R - Key On Engine Running
C - Continuous Operation
REGEN - Test Follows a REGEN CYCLE
SHUT DOWN - Test Follows Key Off
KO - Test Operates at Key On
1PC - Once Per Cycle
DTC
How Set
O R C
Code Description
MIL For Both F250/F350 and F450/F550
MIL For Only F250/F350
DATA Color Code
MIL For F250/F350 and Wrench for F450/F550
Wrench for Both F250/F350 and F450/F550
No MIL or Wrench Light
Brief Description
P0301
X
Cylinder 1 Misfire Detected
This error occurs if the case of a loss of combustion.
P0302
X
Cylinder 2 Misfire Detected
This error occurs if the case of a loss of combustion.
P0303
X
Cylinder 3 Misfire Detected
This error occurs if the case of a loss of combustion.
P0304
X
Cylinder 4 Misfire Detected
This error occurs if the case of a loss of combustion.
P0305
X
Cylinder 5 Misfire Detected
This error occurs if the case of a loss of combustion.
P0306
X
Cylinder 6 Misfire Detected
This error occurs if the case of a loss of combustion.
Software Parameters
Required to Set Code
Service Instructions /
Part Replaced
P0307
X
Cylinder 7 Misfire Detected
This error occurs if the case of a loss of combustion.
P0308
X
Cylinder 8 Misfire Detected
This error occurs if the case of a loss of combustion.
3 CAM edges <1sec
Wiring, CMP sensor,
CKP sensor, PCM
P0336
X
X
X
Crankshaft Position Sensor A
Circuit Range/Performance
This error occurs if the tooth count of the crankshaft trigger
wheel reaches a threshold and the system is still not
detecting sync between CKP and CMP circuits while a valid
CMP sensor signal has been detected (intermittent CKP
signal), when the number of missing or extra teeth exceed
the threashold, or if spikes are detected in the CKP signal.
P0337
X
X
X
Crankshaft Position Sensor
A Circuit Low Input
This error occurs when a short or open fault in
the CKP circuit is present causing the amplitude
of the AC voltage to be excessive.
0.5v < 1sec
Wiring, CKP sensor, PCM
P0341
X
X
X
Camshaft Position Sensor A
Circuit Range/Performance
This error occurs when either the number of CMP
signals is too great to filter or the CMP signal is
not properly aligned with the CKP signal.
Internal to the engine control module
Once at key on < 1 sec
Wiring, CMP sensor, PCM
P0342
X
X
X
Camshaft Position Sensor
A Circuit Low Input
This error occurs when the CMP signal is missing entirely.
Internal to the engine control module
Once at key on < 1 sec
Wiring, CMP sensor, PCM
X
Glow Plug/Heater
Indicator Circuit
The instrument cluster performs the diagnostic of the
wait-to-start indicator once per driving cycle and transmits
the result to the PCM. The PCM analyzes the message
to check if the glow plug lamp circuit is operational.
Wiring, Tegr_IN sensor, PCM
P0381
P040B
X
X
X
Exhaust Gas Recirculation
Temperature Sensor A Circuit
Range/Performance
This error occurs when the change in the EGR
cooler inlet temperature is less than 40 deg
C for a predetermined period of time.
Initial ECT < 30 deg C.
ECT increase to > 80 deg
C during drive cycle
ECM on time > 3 seconds
TEGR_IN has not changed more
than 6 deg. C in 2 drive cycles
P040C
X
X
X
Exhaust Gas Recirculation
Temperature Sensor
A Circuit Low
This error occurs when the EGR cooler inlet
sensor temperature output value is higher
(lower voltage signal) than a maximum probable
temperature, indicating a short to ground.
0.07v > 5sec.
Wiring, Tegr_IN sensor, PCM
X
Exhaust Gas Recirculation
Temperature Sensor
A Circuit High
This error occurs when the EGR cooler inlet sensor
temperature output value is lower (higher voltage
signal) than a minimum probable temperature,
indicating an open circuit or short to power.
N > 650 rpm
torque setpoint >53 N-m
ECT > 60 deg C
4.65v >5sec
Wiring, Tegr_IN sensor, PCM
This error is set when the estimated EGR percent is less
than the minimum limit for the operating condition.
DPF regeneration not requested
PTO not active
Pressure ratio across EGR valve < 1
rate of change of engine speed < 0.05
rate of change of indicated
torque setpoint < 0.05
600 rpm <engine speed< 800 rpm
45Nm <tqi_sp< 174Nm
12 sec to run test
2 low flow failures required to set
fault (test runs 5 times per trip)
60 sec wait time between tests
EGR system error
P040D
P0401
X
X
X
Exhaust Gas Recirculation
Flow Insufficient Detected
94
diagnostic codes
DTC
How Set
O R C
Code Description
Brief Description
Software Parameters
Required to Set Code
Service Instructions /
Part Replaced
P0402
X
Exhaust Gas Recirculation
Flow Excessive Detected
This error occurs when the estimated EGR percent is greater
than the maximum limit for the operating condition.
DPF regeneration not requested
PTO not active
Pressure ratio across EGR valve < 1
rate of change of engine speed < 0.05
rate of change of indicated
torque setpoint < 0.05
600 rpm <engine speed< 800 rpm
45Nm <tqi_sp< 174Nm
12 sec to run test
2 low flow failures required to set
fault (test runs 5 times per trip)
60 sec wait time between tests
P0403
X
Exhaust Gas Recirculation
Control Circuit
This error occurs when the current through the EGR
control circuit is outside of a predetermined range.
Internal to the engine control module
Wiring, EGR valve
assembly, PCM
P0404
X
Exhaust Gas Recirculation
Control Circuit Range/
Performance
This error is set when the deviation in EGR
position is outside the threshold.
10 percent of full range error >5 sec
System error, EGR valve, PCM
EGR system error
P0405
X
X
X
Exhaust Gas Recirculation
Sensor A Circuit Low
This error occurs when the EGR position voltage is below the
specified voltage for a predetermined amount of time. This
error can indicate either a short to ground or an open circuit.
0.24v <3 sec
Wiring, EGR valve
assembley, PCM
P0406
X
X
X
Exhaust Gas Recirculation
Sensor A Circuit High
This error occurs when the EGR position voltage is
above the specified voltage, for maximum position given
the current operation, for a predetermined amount of
time. This error can indicate a short to power.
4.84v <3 sec
Wiring, EGR valve
assembley, PCM
Wiring, Tegr_OUT sensor, PCM
P041B
X
X
X
Exhaust Gas Recirculation
Temperature Sensor B
Circuit Range/Performance
This error occurs when the change in the EGR
cooler outlet temperature is less than the threshold
for a predetermined period of time.
Initial ECT < 30 deg C
ECT increase to > 80 deg
C during drive cycle
ECM on time > 3 seconds
TEGR_IN has not changed more
than 6 deg. C in 2 drive cycles
P041C
X
X
X
Exhaust Gas Recirculation
Temperature Sensor
B Circuit Low
This error occurs when the EGR cooler outlet sensor
temperature output value is lower than a minimum
probable temperature for a predetermined amount of
time, indicating an open circuit or short to power.
0.15v > 5sec.
Wiring, Tegr_OUT sensor, PCM
X
Exhaust Gas Recirculation
Temperature Sensor
B Circuit High
This error occurs when the EGR cooler outlet
sensor temperature output value is higher than a
maximum probable temperature for a predetermined
period of time, indicating a short to ground.
N > 650 rpm
torque setpoint >53 N-m
ECT > 60 deg C
4.95v > 5 sec
Wiring, Tegr_OUT sensor, PCM
Catalyst System Efficiency
Below Threshold
This error occurs if the observed exothermic reaction (a
reaction that produces heat) during a regeneration event
falls below a threshold for a predetermined period of time.
P041D
X
P0420
X
REGEN
P042E
X
X
X
EGR Control Stuck Open
This error occurs when the EGR set point is less
than a specified threshold, the actual EGR position
is greater than a specified threshold, and the EGR
control limit is less than a specified limit.
EGR Position > 30 %
EGR Position desired < 15% > 4 sec
System error, EGR valve, PCM
P042F
X
X
X
EGR Control Stuck Closed
This error occurs when the EGR set point is greater
than a specified threshold, the actual EGR position
is less than a specified threshold, and the EGR
control limit is greater than a specified limit.
EGR Position < 15 %
EGR Position desired > 30% > 4 sec
System error, EGR valve, PCM
P0472
X
Exhaust Pressure Sensor
A Circuit Low
This error occurs when the EP signal voltage is lower than
a specified value for a predetermined period of time.
0.15v < 3 sec
Wiring, EP sensor, PCM
P0473
X
Exhaust Pressure Sensor
A Circuit High
This error occurs when the EP signal voltage is higher than
a specified value for a predetermined amount of time.
4.90v < 3 sec
Wiring, EP sensor, PCM
P0480
X
Fan 1 Control Circuit
P0488
X
EGR Throttle Position Control
Range/Performance
This error occurs when there is an error in throttle position
vs. desired position, high temperature condition and throttle
not returned to open position when commanded, faulty
input signal detected, or broken return spring detected.
THR_STATE is low > 3 sec
Wiring, EGRTP, PCM
P0494
X
Fan Speed Low
P0495
X
Fan Speed High
P0500
X
Vehicle Speed Sensor A
This error occurs when either a faulty signal or a missing
signal occurs from the vehicle speed sensor circuit.
P0503
X
Vehicle Speed Sensor A
Intermittent/Erratic/High
This error occurs when an intermittent error is
detected in the vehicl speed sensor circuit.
95
diagnostic codes
O - Self Test - Key On Engine Off
R - Key On Engine Running
C - Continuous Operation
REGEN - Test Follows a REGEN CYCLE
SHUT DOWN - Test Follows Key Off
KO - Test Operates at Key On
1PC - Once Per Cycle
DTC
How Set
O R C
Code Description
MIL For Both F250/F350 and F450/F550
MIL For Only F250/F350
DATA Color Code
Wrench for Both F250/F350 and F450/F550
No MIL or Wrench Light
Brief Description
P0528
X
Fan Speed Sensor
Circuit No Signal
P0529
X
Fan Speed Sensor
Circuit Intermittent
P0544
1
P
C
Exhaust Gas Temperature
Sensor Circuit Bank 1 Sensor 1
This error occurs if the EGT1 temperature signal of the
exhaust system does not rise sufficiently immediately
after a cold-start following an 8-hour soak.
P0545
X
Exhaust Gas Temperature
Sensor Circuit Low
- Bank 1 Sensor 1
This error occurs when the EGT1 sensor temperature
signal is higher (lower voltage signal) than a maximum
probable temperature, indicating a short to ground.
P0546
X
Exhaust Gas Temperature
Sensor Circuit High
- Bank 1 Sensor 1
This error occurs when the EGT1 sensor temperature signal
is lower (higher voltage signal) than a minimum probable
temperature, indicating an open circuit or a short to power.
System Voltage
This error occurs when battery voltage falls
below a predetermined threshold.
X
System Voltage High
This error occurs if the battery voltage increases
above a predetermined threshold.
P0560
X
P0563
MIL For F250/F350 and Wrench for F450/F550
P0565
X
X
Cruise Control ON Signal
This error occurs is the cruise control on switch is
not pressed during the KOER or the cruise control on
switch is stuck on during continuos operation.
P0566
X
X
Cruise Control OFF Signal
This error occurs when the cruise control off switch
is not depressed during the KOER self test or when
the switch is stuck during continuous operation.
P0567
X
X
Cruise Control RESUME Signal
This error occurs when the cruise control resume
switch is not depressed during the KOER self test
or is stuck during continuous operation.
P0568
X
X
Cruise Control SET Signal
This error occurs when the cruise control set
switch is not depressed during the KOER self test
or is stuck during continuous operation.
P0569
X
X
Cruise Control COAST Signal
This error occurs when the cruise control coast
switch is not depressed during the KOER self test
or is stuck during continuous operation.
P0571
X
Brake Switch A Circuit
This error occurs when the brake switch is not
depressed during the KOER self test.
Software Parameters
Required to Set Code
Service Instructions /
Part Replaced
P0578
X
Cruise Control Multi-Function
Input A Circuit Stuck
This error occurs if the voltage received by the PCM for the
cruise control circuit is above the calibrated threshold.
P0579
X
Cruise Control MultiFunction Input A Circuit
Range/Performance
This error occurs when all cruise control
circuit voltages are equal to zero.
X
Internal Control Module A/D
Processing Performance
This error occurs is the voltages for main
controller and monitoring controller within the
PCM are outside of a predetermined range.
ECU
P060C
X
Internal Control Module
Monitoring Processor
Performance
This error occurs if a fault occurs to the
monitoring processor within the PCM.
Verify reprogramming files,
reflash module, change ECU
P060D
X
Internal Control Module
Accelerator Pedal
Position Performance
Pedal, wiring to pedal, PCM
Serial Communication Link
PCM
1
P
C
Powertrain Control
Module Program Error
VID Block program, PCM
1
P
C
Powertrain Control Module
Keep Alive Memory (KAM) Error
P060B
P0600
X
X
P0602
P0603
X
X
This error occurs if a fault is detected in
the keep alive memory circuit.
96
engine not longer running
than 600 sec
PCM
diagnostic codes
DTC
How Set
O R C
Code Description
Brief Description
Software Parameters
Required to Set Code
Service Instructions /
Part Replaced
P0604
X
X
X
Internal Control Module Read
Only Memory (RAM) Error
This error occurs if a fault is detected in
the read only memory circuit.
PCM
P0605
X
X
X
Internal Control Module Read
Only Memory (ROM) Error
The checksum of the calibration ROM area is
checked and compared against an expected
value (calibration value) at startup.
Verify programming files, PCM
P061B
X
X
X
Internal Control Module Torque
Calculation Performance
This error occurs if a fault is detected when
monitoring the status of the injection of all cylinders
compaired to the current engine speed.
PCM
P061C
X
X
X
Internal Control Module
Engine RPM Performance
This error occurs when the engine RPM signal,
derived from the CKP circuit, differs significantly
from the expected engine RPM, developed by the
PCM, for a predetermined amount of time
PCM, CRK sensor, CRK wiring
P062D
X
X
Fuel Injector Driver Circuit
Performance Bank 1
This error occurs when the sum of the voltage signals for
the main injection of all injectors on bank 1 or if the fuel
injector driver circuit for bank 1 fails to initialize properly.
max = 229 V
min = 93 V
Wiring to injectors, PCM
P062E
X
X
Fuel Injector Driver Circuit
Performance Bank 2
This error occurs when the sum of the voltage signals for
the main injection of all injectors on bank 2 or if the fuel
injector driver circuit for bank 2 fails to initialize properly.
max = 229 V
min = 93 V
Wiring to injectors, PCM
P0620
X
Generator Control Circuit
P0625
X
Generator Field Terminal
Circuit Low
P0626
X
Generator Field Terminal
Circuit High
P0627
X
Fuel Pump A Control
Circuit / Open
This error occurs if electrical errors from the fuel
pump module result in an open circuit.
P0628
X
Fuel Pump A Control
Circuit Low
This error occurs if electrical errors from the fuel
pump module result in a short to ground.
P0629
X
Fuel Pump A Control
Circuit High
This error occurs if electrical errors from the fuel
pump module result in a short to power.
P0642
X
X
X
Sensor Reference
Voltage A Circuit Low
This error occurs when the sensor reference
voltage falls below the minimum threshold.
Low: < 4.75V
Wiring, PCM
P0643
X
X
X
Sensor Reference
Voltage A Circuit High
This error occurs when the sensor reference
voltage falls above a maximum threshold.
High: >5.25 V
Wiring, PCM
X
Generator Control Circuit
Range/Performance
P065B
P0652
X
X
X
Sensor Reference
Voltage B Circuit Low
This error occurs when the sensor reference
voltage falls below a minimum threshold.
Low: < 4.75V
Wiring to sensors, PCM
P0653
X
X
X
Sensor Reference
Voltage B Circuit High
This error occurs when the sensor reference
votage is above a maximum threshold.
High: >5.25 V
Wiring to sensors, PCM
P0670
X
X
X
Glow Plug Control Module
Control Circuit / Open
This error occurs if the glow plug enable circuit detects
an open circuit, short to ground, or short to power.
Internal to Glow Plug Control
Module (GPCM) > 5 sec
Wiring, GPCM, PCM
P0671
X
X
X
Cylinder 1 Glow Plug Circuit
This error occurs if the current for an individual glowplug
is either lower than the minimum current threshold
or higher than the maximum current threshold.
An open is a current level less
than 4 amps and a shorted
current level is above 60 amps.
Glow Plug on time > 8.5 sec
Wiring, Glow Plug, GPCM
P0672
X
X
X
Cylinder 2 Glow Plug Circuit
This error occurs if the current for an individual glowplug
is either lower than the minimum current threshold
or higher than the maximum current threshold.
An open is a current level less
than 4 amps and a shorted
current level is above 60 amps.
Glow Plug on time > 8.5 sec
Wiring, Glow Plug, GPCM
P0673
X
X
X
Cylinder 3 Glow Plug Circuit
This error occurs if the current for an individual glowplug
is either lower than the minimum current threshold
or higher than the maximum current threshold.
An open is a current level less
than 4 amps and a shorted
current level is above 60 amps.
Glow Plug on time > 8.5 sec
Wiring, Glow Plug, GPCM
P0674
X
X
X
Cylinder 4 Glow Plug Circuit
This error occurs if the current for an individual glowplug
is either lower than the minimum current threshold
or higher than the maximum current threshold.
An open is a current level less
than 4 amps and a shorted
current level is above 60 amps.
Glow Plug on time > 8.5 sec
Wiring, Glow Plug, GPCM
P0675
X
X
X
Cylinder 5 Glow Plug Circuit
This error occurs if the current for an individual glowplug
is either lower than the minimum current threshold
or higher than the maximum current threshold.
An open is a current level less
than 4 amps and a shorted
current level is above 60 amps.
Glow Plug on time > 8.5 sec
Wiring, Glow Plug, GPCM
97
diagnostic codes
O - Self Test - Key On Engine Off
R - Key On Engine Running
C - Continuous Operation
REGEN - Test Follows a REGEN CYCLE
SHUT DOWN - Test Follows Key Off
KO - Test Operates at Key On
1PC - Once Per Cycle
DTC
P0676
P0677
How Set
O R C
X
X
X
X
X
X
Code Description
MIL For Both F250/F350 and F450/F550
MIL For Only F250/F350
DATA Color Code
Wrench for Both F250/F350 and F450/F550
No MIL or Wrench Light
Brief Description
An open is a current level less
than 4 amps and a shorted
current level is above 60 amps.
Glow Plug on time > 8.5 sec
Wiring, Glow Plug, GPCM
Cylinder 7 Glow Plug Circuit
This error occurs if the current for an individual glowplug
is either lower than the minimum current threshold
or higher than the maximum current threshold.
An open is a current level less
than 4 amps and a shorted
current level is above 60 amps.
Glow Plug on time > 8.5 sec
Wiring, Glow Plug, GPCM
An open is a current level less
than 4 amps and a shorted
current level is above 60 amps.
Glow Plug on time > 8.5 sec
Wiring, Glow Plug, GPCM
GP active >5 sec
Wiring, GPCM, PCM
X
X
X
Cylinder 8 Glow Plug Circuit
P0684
X
X
X
Glow Plug Control Module
to PCM Communication
Circuit Range/Performance
This error occurs when the pass/fail status information
signal, sent by the GPCM to the PCM, is consistantly high,
consistantly low, or the period of the signal is out of range.
P0691
X
Fan 1 Control Circuit Low
P0692
X
Fan 1 Control Circuit High
P1000
RESET
Service Instructions /
Part Replaced
This error occurs if the current for an individual glowplug
is either lower than the minimum current threshold
or higher than the maximum current threshold.
P0678
X
Software Parameters
Required to Set Code
Cylinder 6 Glow Plug Circuit
This error occurs if the current for an individual glowplug
is either lower than the minimum current threshold
or higher than the maximum current threshold.
P0703
MIL For F250/F350 and Wrench for F450/F550
Brake Switch B Input Circuit
This error occurs when the brake switch is
not activated during the KOER self test.
OBD Systems Readiness
Test Not Complete
This error occurs when all other DTC’s have been
erased from the system. This error will subside
when all OBD monitors have been completed.
P1102
X
Mass Air Flow Sensor In Range
But Lower Than Expected
This error occurs when the measured value of
mass air flow is lower than a threshold value
for a predetermined period of time.
0%< EGR Position < 50%
Engine speed >700 rpm < 2400 rpm
based on a table > 30sec
Wiring, MAF assembly, PCM
P1103
X
Mass Air Flow Sensor In Range
But Higher Than Expected
This error occurs when the measured value of
mass air flow is higher than a threshold value
for a predetermined period of time.
0%< EGR Position < 50%
Engine speed >700 rpm < 2400 rpm
based on a table > 30sec
Wiring, MAF assembly, PCM
P115A
X
Low Fuel Level - Forced
Limited Power
This error occurs when the PCM recieves a signal
indicating that the vehicle is critically low on fuel.
P117B
X
Exhaust Gas Temperature
Sensor Correlation
This error occurs when the three exhaust temperature
sensor readings are not within a specified temperature
range when compared to one another.
X
Fuel Pressure Regulator
Excessive Variation
This error occurs when any of the fuel pressure
corrections either become less than a minimum
threshold or more than a maximum threshold.
Engine Oil Temperature Sensor
Out Of Self Test Range
This error occurs when the KOER self test is attempted but the
engine has not reached an operating temperature of 60º C.
X
Fuel Pressure Regulator
Excessive Variation
This error occurs when the difference between actual rail
pressure and the PCM’s calculated setpoint is large, and the
actual fuel pressure crosses the setpoint too frequently.
P117F
X
P1184
X
P120F
P127A
X
X
X
Aborted KOER - Fuel
Pressure Failure
This error occurs when fuel pressure does not
rise sufficiently during the KOER self test.
P132A
X
X
X
Turbocharger Boost
Control A Electrical
This error occurs if the turbocharger cannot perform
a sweep/learn of the min/max position.
P132B
X
X
X
Turbocharger/Supercharger
Boost Control A Performance
P132C
X
X
X
P1335
X
X
P1336
X
X
Low pressure fuel system,
injector leakage
EOT < 60 >205deg C
NA
Wiring to FUP sensor,
FUP sensor, low pressure
fuel system
Cannot achieve or return to 53
FUP_SP. Cannot achieve 139MPa
NA
This error occurs if a fault is detected
within the turbocharger actuator.
Internal to the turbocharger
control module
Wiring, SRA module,PCM
Turbocharger/Supercharger
Boost Control A Voltage
This error occurs when the voltage to the
turbocharger actuator is below the threshold
for a predetermined period of time.
Internal to the turbocharger
control module
Wiring, SRA module,PCM
X
EGR Position Sensor Minimum/
Maximum Stop Performance
This error occurs when voltage of the EGR valve
falls below the minimum threshold.
1.3v >2.5sec
Wiring, EGR valve
assembly,PCM
X
Crankshaft/Camshaft Sensor
Range/Performance
This error occurs when the reference gap of the crankshaft
trigger wheel is not detected at the correct position.
Internal to the engine control module
System error, electrical
noise,…
98
diagnostic codes
DTC
P138D
How Set
O R C
X
X
X
Code Description
Brief Description
Software Parameters
Required to Set Code
Turbocharger Boost Control
A Temperature Too High
This error occurs when the internal operating
temperature of the actuator exceeds the threshold
for a predetermined period of time.
150 deg C
Service Instructions /
Part Replaced
P1397
X
System Voltage Out Of
Self Test Range
This error occurs if the KOER self test is attempted
but the vehicle battery voltage is too low.
< 9.0v prior to KOER start
NA
P1408
X
Exhaust Gas Recirculation
Flow Out Of Self Test Range
This error occurs is the EGR valve position is
not wihin test limits when the EGR valve is
commanded open during the KOER self test.
> 1500hPa and <1500hPa (note
numbers are valid only until D00
is released where these need
to be in gauge pressure)
NA
P1501
X
Vehicle Speed Sensor
Out Of Self Test Range
This error occurs if the KOER self test is
attampted while vehicle is moving.
>5MPH (This entry condition condition
is primarily used for the Manual
Transmission applications that do
not have a “in gear” message.)
NA
P1531
X
Invalid Test - Accelerator
Pedal Movement
This error occurs when the accelerator pedal
moves during the KOER self test.
>10%
NA
P1536
X
Parking Brake Switch Circuit
This error occurs if the parking brake switch
is not active during the KOER self test.
P1551
X
X
Injector Circuit Range/
Performance - Cylinder 1
This error occurs when the minimum current
rise time is outside the valid range.
max = 210 V
min = 62 V
Wiring to injectors, injectors, HP
system, coolant temp sensor
P1552
X
X
Injector Circuit Range/
Performance - Cylinder 2
This error occurs when the minimum current
rise time is outside the valid range.
max = 210 V
min = 62 V
Wiring to injectors, injectors, HP
system, coolant temp sensor
P1553
X
X
Injector Circuit Range/
Performance - Cylinder 3
This error occurs when the minimum current
rise time is outside the valid range.
max = 210 V
min = 62 V
Wiring to injectors, injectors, HP
system, coolant temp sensor
P1554
X
X
Injector Circuit Range/
Performance - Cylinder 4
This error occurs when the minimum current
rise time is outside the valid range.
max = 210 V
min = 62 V
Wiring to injectors, injectors, HP
system, coolant temp sensor
P1555
X
X
Injector Circuit Range/
Performance - Cylinder 5
This error occurs when the minimum current
rise time is outside the valid range.
max = 210 V
min = 62 V
Wiring to injectors, injectors, HP
system, coolant temp sensor
P1556
X
X
Injector Circuit Range/
Performance - Cylinder 6
This error occurs when the minimum current
rise time is outside the valid range.
max = 210 V
min = 62 V
Wiring to injectors, injectors, HP
system, coolant temp sensor
P1557
X
X
Injector Circuit Range/
Performance - Cylinder 7
This error occurs when the minimum current
rise time is outside the valid range.
max = 210 V
min = 62 V
Wiring to injectors, injectors, HP
system, coolant temp sensor
P1558
X
X
Injector Circuit Range/
Performance - Cylinder 8
This error occurs when the minimum current
rise time is outside the valid range.
max = 210 V
min = 62 V
Wiring to injectors, injectors, HP
system, coolant temp sensor
P1586
X
X
X
Electronic Throttle to PCM
Communication Error
This error occurs when the digital feedback
communication line of the EGR throttle plate is
either unreadable by the PCM or missing.
P1639
X
X
Vehicle ID Block Corrupted,
Not Programmed
This error occurs when the VID block data are not
programmed or programmed incorrectly.
P1703
X
Brake Switch Out Of
Self Test Range
This error occurs during the KOER self test if the
break pedal switch is stuck in the closed position
or the break pedal is depressed twice.
Insufficient Engine Speed
Increase During Self Test
This error occurs if the engine RPM drops below a
minimum threshold during the KOER self test.
< 500RPM
NA
Insufficient Engine Speed
Decrease During Self Test
This error occurs if the engine RPM increases above
a maximum threshold during the KOER self test.
>1600 RPM
NA
CAN ECM/Turbocharger
Boost Control & Actuator
Circuit Malfunction
This error occurs is the CAN data communication is
interrupted between the PCM and the turbocharger actuator.
Particulate Trap Efficiency
Below Threshold
This error occurs if an expected pressure drop through the DPF
is lower than the specified value following a regeneration cycle
(based on the concept of normalized pressure differential).
P1725
X
P1726
P179A
P2002
X
X
X
X
X
X
REGEN
P2031
1
P
T
Exhaust Gas Temperature
Sensor Circuit Bank 1 Sensor 2
This error occurs if the EGT2 temperature signal of the
exhaust system does not rise sufficiently immediately
after a cold-start following an 8-hour soak.
P2032
X
Exhaust Gas Temperature
Sensor Circuit Low
Bank 1 Sensor 2
This error occurs when the EGT2 sensor temperature
signal is higher (lower voltage signal) than a maximum
probable temperature, indicating a short to ground.
P2033
X
Exhaust Gas Temperature
Sensor Circuit High
Bank 1 Sensor 2
This error occurs when the EGT2 sensor temperature signal
is lower (higher voltage signal) than a minimum probable
temperature, indicating an open circuit or a short to power.
99
diagnostic codes
O - Self Test - Key On Engine Off
R - Key On Engine Running
C - Continuous Operation
REGEN - Test Follows a REGEN CYCLE
SHUT DOWN - Test Follows Key Off
KO - Test Operates at Key On
1PC - Once Per Cycle
DTC
How Set
O R C
Code Description
MIL For Both F250/F350 and F450/F550
MIL For Only F250/F350
DATA Color Code
MIL For F250/F350 and Wrench for F450/F550
Wrench for Both F250/F350 and F450/F550
No MIL or Wrench Light
Brief Description
Software Parameters
Required to Set Code
Service Instructions /
Part Replaced
P2080
1
P
C
Exhaust Gas Temperature
Sensor Circuit Range/
Performance Bank 1 Sensor 1
This error occurs if the EGT1 temperature sensor signal
in the exhaust at key on, following an 8-hour soak, is
significantly different than ambient temperature.
P2081
X
Exhaust Gas Temperature
Sensor Circuit Intermittent
Bank 1 Sensor 1
This error occurs if the temperature in the exhaust
at key on, following an 8-hour soak, is significantly
different than ambient temperature.
P2084
X
Exhaust Gas Temperature
Sensor Circuit Range/
Performance Bank 1 Sensor 2
This error occurs if the EGT2 temperature sensor signal
in the exhaust at key on, following an 8-hour soak, is
significantly different than ambient temperature.
P2085
X
Exhaust Gas Temperature
Sensor Circuit Intermittent
Bank 1 Sensor 2
This error occurs if an intermittent signal from the
exhaust gas temperature sensor is detected.
P2122
X
Throttle/Pedal Position Sensor/
Switch D Circuit Low Input
P2123
X
Throttle/Pedal Position Sensor/
Switch D Circuit High Input
P2127
X
Throttle/Pedal Position Sensor/
Switch E Circuit Low Input
P2128
X
Throttle/Pedal Position Sensor/
Switch E Circuit High Input
P2138
X
Throttle/Pedal Position Sensor/
Switch D / E Voltage Correlation
X
Intake Air Temperature
1/2 Correlation
This error occurs when the difference between
IAT2 and IAT1 is greater than a specified value
for a predetermined period of time.
>20 deg C
8 minutes
Wiring, IAT or IAT2 sensor, PCM
P2199
X
X
P2228
X
Barometric Pressure
Circuit Low Input
This error occurs when the voltage signal from the barometric
pressure circuit falls below a minimum threshold.
Low: < 2.22 V
PCM
P2229
X
Barometric Pressure
Circuit High Input
This error occurs when the voltage signal from the barometric
pressure circuit rises above a maximum threshold.
High: >4.36 V
PCM
P2230
X
Barometric Pressure
Circuit Intermittent
P2262
X
Turbocharger/Supercharger
Boost Pressure Not
Detected - Mechanical
PCM
This error occurs if the MAP sensor readings are below a
calibrated value for a predetermined amount of time.
engine speed and torque
based table >30 sec
System error, CAC hose,
MAP sensor plugged,…
Engine speed > 550 rpm
Torque set point > 50 N-m,
ECT > 81 deg C
IAT > -50 deg C
No DPF regeneration request
EP setpoint is stable
Based on a table on N and TQI >5sec
System error
0.4 sec after engine switch-off
fuel rail pressure (FUP) must
be lower than 10MPa.
FUP sensor, wiring to FUP
sensor, HP fuel system
P2263
X
Turbocharger/Supercharger
Boost System Performance
This error occurs when the difference between the
gage exhaust pressur and the set point is less than
the minimum threshold or greater than the maximum
threshold for a predetermined period of time.
P2269
X
Water in Fuel Condition
This error occurs when water is detected in the HFCM.
P2289
SHUTDOWN
Injector Control Pressure
Too High - Engine Off
This error occurs if excessive fuel pressure is present
after a predetermined period of time following key off.
P2291
X
Injector Control Pressure Too
Low - Engine Cranking
This error occurs when enough injection control pressure
to start the vehicle cannot be achieved during cranking.
Exhaust Gas Temperature
Sensor Circuit Bank 1 Sensor 3
This error occurs if the EGT3 temperature signal of the
exhaust system does not rise sufficiently immediately
after a cold-start following an 8-hour soak.
X
P242A
1PC
P242B
Exhaust Gas Temperature
1PC Sensor Circuit Range/
Performance Bank 1 Sensor 3
This error occurs if the EGT3 temperature sensor signal
in the exhaust at key on, following an 8-hour soak, is
significantly different than ambient temperature.
100
Low pressure fuel system,
HP fuel system, FUP sensor
and wiring to sensor, battery
voltage (crank speed)
diagnostic codes
DTC
How Set
O R C
Code Description
Brief Description
P242C
X
Exhaust Gas Temperature
Sensor Circuit Low
Bank 1 Sensor 3
This error occurs when the EGT3 sensor temperature
signal is higher (lower voltage signal) than a maximum
probable temperature, indicating a short to ground.
P242D
X
Exhaust Gas Temperature
Sensor Circuit High
Bank 1 Sensor 3
This error occurs when the EGT3 sensor temperature signal
is lower (higher voltage signal) than a minimum probable
temperature, indicating an open circuit or a short to power.
P242E
X
Exhaust Gas Temperature
Sensor Circuit Intermittent
Bank 1 Sensor 3
This error occurs if an intermittent signal from the
exhaust gas temperature sensor is detected.
P242F
REGEN
Diesel Particulate Filter
Restriction - Ash Accumulation
This error occurs if excessively high exhaust
pressures are detected after a regen cycle.
P244A
REGEN
Diesel Particulate Filter
Differential Pressure Too Low
This error occurs if an expected pressure drop through the
DPF is lower than the specified value following a regeneration
cycle (based on the concept of observed pressure differential).
Exhaust Temperature
too low for Particulate
Filter Regeneration
This error occurs if the exhaust temperature is too low to
perform a regen cycle of the diesel particulate filter.
Exhaust Temperature
too high for Particulate
Filter Regeneration
This error occurs if exhaust temperatures are too high to
perform a regen cycle of the diesel particulate filter.
Diesel Particulate Filter
Differential Pressure Sensor
Circuit Range/Performance
This error occurs if the differential pressure of
the diesel particulate filter reads a constant
value while the engine is running.
P244C
X
P244D
X
X
REGEN
X
P2453
X
KO
P2454
X
Diesel Particulate Filter
Differential Pressure
Sensor Circuit Low
This error occurs if a short to ground is detected in the
diesel particulate filter differential pressure sensor circuit.
P2455
X
Diesel Particulate Filter
Differential Pressure
Sensor Circuit High
This error occurs if a short to power occurs in the diesel
particulate filter differential pressure sensor circuit.
P2456
X
Diesel Particulate Filter
Differential Pressure Sensor
Circuit Intermittent/Erratic
This error occurs if the signal from the diesel particulate
filter differential pressure sensor to the PCM is unreadable.
X
Exhaust Gas Recirculation
Cooler System Performance
This error occurs if the EGR cooler temperature
sensor reading is above a maximum threshold
for a predetermined period of time.
P2458
X
Diesel Particulate Filter
Regeneration Duration
P2459
X
Diesel Particulate Filter
Regeneration Frequency
P2457
X
P2545
P2563
X
P2610
EGR Position >= 0
600 rpm<Engine speed < 1300 rpm
50 N-m< Torque set point< 400 N-m
>165 deg C
>20sec
Torque Management
Request Input Signal A
Range/Performance
X
X
Software Parameters
Required to Set Code
System error, TEGR_OUT
sensor,…
CAN wiring, change ECU
Turbocharger Boost Control
Position Sensor A Circuit
Range/Performance
This error occurs when the difference between the
turbocharger actuator commanded duty cycle and
the feed forward commanded duty cycle is less than
the threshold value for the given engine speed and
engine load for a predetermined period of time.
X
ECM/PCM Internal Engine
Off Timer Performance
This error occurs when the engine off timer does not
correlate to the PCM’s internal timer (compared while
the engine is running), if the engine off time does not
correspond with the measured ECT temperature variation
between the last engine stop and the next engine
start, or when the engine off timer is defective.
X
Service Instructions /
Part Replaced
U0073
X
X
X
Control Module
Communication Bus A Off
This error occurs if a fault in the CAN
communication is detected.
U0101
X
X
X
Lost Communication with TCM
This error occurs is the CAN data communication
is interrupted between the PCM and the TCM.
101
600 rpm <Engine speed< 1000 rpm
Torque set point > 50 N-m
ECT > 70 deg C
IAT > -50 deg C
No DPF regeneration request
EP setpoint is stable
-60 % of desired
7.5 sec
System error
6.4L Power Stroke Diesel Engine
®
© 2007 International Truck and Engine Corporation
Printed in U.S.A.
FCS-14853-MISC
Uniq u e ser vice Proced ures
Oil Filter: Replacement
Oil Filter Lid
• First loosen the oil filter cap which will open
the oil filter drain and allow the oil from the
filter housing to drain into the crankcase.
• Drain the oil from the oil pan.
Oil Filter Element
• After all of the oil has drained from the oil pan remove
the oil filter and discard it in the appropriate location.
• Install the new oil filter element and tighten
the oil filter cap to the recommended torque.
This will close the oil filter drain.
• Refill crankcase with the correct
volume of recommended oil.
Note: The oil filter snaps into the oil filter lid.
131
Fuel Filter: Replacement
Fuel Filter Lid
NOTE: Use proper cleanliness practices while servicing
the fuel system, do not let any dirt get into the housing!
• Clean all dirt and debris from the engine mounted
fuel filter lid thoroughly. Make sure your hands
and any tools involved are clean also!
Fuel Filter Element
• Remove the fuel filter lid and lift the filter element out
of the housing and discard in the appropriate location.
• To avoid fuel spills, use a suction gun or similar device to
remove the remaining fuel from the fuel filter housing.
• Install the new filter and tighten the fuel
filter lid to the specified torque.
NOTE: Before starting the vehicle, turn the key
to the on position for 30 seconds, then key off.
Do this 6 times to ensure the fuel filter housing
is full of fuel before starting the vehicle.
132
Fuel Rail Caps
Fuel System Service Cleanliness:
Fuel Injectors, Fuel Rail
NOTE: Use proper cleanliness practices
while servicing the fuel system!
• Always use fuel system caps when servicing
the fuel injectors or replacing fuel lines.
• Do not have the fuel system open to the elements any
longer than is necessary to perform the job at hand.
• Tool # 310-158 (fuel caps)
Fuel Injector Caps
133
73
Uniq ue ser vice Proced ures
Fuel System Service Cleanliness: High
Pressure Fuel Injection Pump
Fuel Rail Caps
NOTE: Use proper cleanliness practices
while servicing the fuel system!
• Always use fuel system caps when servicing
the high pressure fuel injection pump.
• Do not have the fuel system open to the elements any
longer than is necessary to perform the job at hand.
• Tool # 310-158 (fuel caps)
High Pressure Fuel
Injection Pump Caps
134
Fuel System Service: High Pressure Fuel Tubes
NOTE: Use proper cleanliness practices
while servicing the fuel system!
• High pressure fuel supply tubes must always be replaced
once loosened. Never re-use a high pressure tube once
it has been loosened under any circumstances!
High Pressure Fuel Tubes
NOTE: Always use the fuel injector connector
disconnect tool (tool # 310-157) whenever
disconnecting the fuel injector electrical connector.
Failure to use this tool can damage the connector.
135
Fuel System Service: High
Pressure Fuel Tube Service
NOTE: Use proper cleanliness practices
while servicing the fuel system!
NOTE: Follow the proper service procedures while servicing
the fuel system and always use the correct torque!
• Proper torque is crucial with the 6.4L Power
Stroke® Diesel’s high pressure fuel system.
• When replacing high pressure fuel tubes, always follow
the correct procedure for installation and torque.
136
74
Uniq u e ser vice Proced ures
Fuel System Service: Fuel Injector Service
NOTE: Use proper cleanliness practices
while servicing the fuel system!
NOTE: Follow the proper sercive procedures while servicing
the fuel system and always use the correct torque!
• Proper torque is crucial with the 6.4L Power
Stroke® Diesel’s high pressure fuel system.
• When replacing fuel injectors, always follow the
correct procedure for installation and torque.
• Always use proper protective fuel system
caps whenever a tube is removed.
• Avoid cleaning parts near fuel system components.
• Tool # 310-158 (fuel caps)
137
Fuel System Service: Removing
and Installing Injector Gasket
NOTE: Use proper cleanliness practices
while servicing the fuel system!
• To remove the gasket, use a razor blade to get between the
gasket and injector body, then slowly work the gasket off.
• To install the new gasket, use a 9mm 12 point
deep well socket and press the gasket on
by hand making sure it is fully seated.
• Make sure the gasket is installed correctly.
The raised portion of the gasket should be
facing away from the injector body.
138
Fuel System Service: Fuel Injector Lubrication
NOTE: Use proper cleanliness practices
while servicing the fuel system!
• Always replace the O-ring and the steel gasket at the
tip of the injector when reinstalling an injector. New
injectors come with these items already installed.
• Always lightly lubricate the new O-ring with
clean engine oil prior to assembly.
139
75
Uniq u e ser vice Proced ures
Checking Fuel Pressure
Test Port (return pressure)
NOTE: Use proper cleanliness practices
while servicing the fuel system!
• There is a fuel return presure test valve (schrader) located
on the front of the fuel cooler on the left side of the engine.
• Proper fuel pressure is very important. Too much
or too little pressure could be detrimental.
• Follow the proper procedure for checking fuel
pressure and make sure the correct specification
for supply pressure is achieved.
NOTE: Supply pressure needs to be checked at the
horizontal fuel conditioning module (HFCM) outlet.
140
Turbocharger Lifting Bracket
• Anytime removal or installation of the turbocharger
is performed, always use the turbocharger
lifting bracket to ensure proper engagement and
disengagement of the turbocharger drain tubes.
• The tool is designed to balance the turbochargers
and hold the two turbine housings in alignment.
• Tool # 303-1266
141
Turbocharger Assembly Tool
• The series sequential turbocharger is comprised
of two turbochargers, low pressue turbocharger
and high pressure turbocharger. When assembling
these two turbochargers together, always use the
turbocharger assembly tool shown at right.
• Tool # 303-1269
• Follow the proper assembly procedure.
• The turbocharger assembly tool is necessary
to ensure that proper alignment/engagement
of the two turbochargers is achieved. 142
76
Uniq u e ser vice Proced ures
EGR Valve Removal
• Removing the EGR valve must be performed using the
proper EGR valve removal tool.
• This tool is comprised of numerous pieces that
must be put together around the EGR valve.
• Once the removal tool is assembled on the valve,
the valve can be slowly pulled from its housing.
• Tool # 303-1267
NOTE: Pay close attention that the removal tool is
installed and used correctly while removing the valve
or damage can occur to the EGR valve and/or tool.
143
Crossover Tube Seal Removal
• Crossover tube seal removal requires the use of special
service tools; slide hammer, seal removal tools.
• There is a different size removal tool for
each opening of the crossover tube.
• Tool # 303-1264
144
Crossover Tube Seal Installation
• When installing new seals into the turbocharger crossover
tube, always use the appropriate installation tools.
• The seals for each passage are two (2) different
sizes. Make sure you use the correct sized
seal installation tool for each sized seal.
NOTE: Make sure you have the crossover tube mounted
securely to assure proper seal installation.
145
77
Uniq u e ser vice Proced ures
High Pressure Fuel Injection Pump: Gear Service
NOTE: Use proper cleanliness practices
while servicing the fuel system!
Correct
NOTE: Severe engine damage can
occur if installed incorrectly!
• It is possible to tighten the gear on the high pressure
fuel injection pump with the gear backwards. The gear
and shaft both have a taper that needs to match.
• If you tighten the gear with it backwards the
tapers will not be aligned but the bolt will
start providing a means of tightening.
• Please pay special attention to insure that the gear is
installed correctly with the tapers on both the gear and
the high pressure fuel injection pump shaft aligned.
Incorrect
146
Cutting T-Joints: Rear Cover
• The T joint is where the bedplate gasket is
bonded to the rear cover. This bond must be
cut prior to removing the rear cover.
• After you loosen all of the bolts you can slide a
cutting tool between the block/bedplate and the
rear cover to sever the bonding compound.
NOTE: Failure to cut the T joint will stretch the
bedplate gasket and result in an oil leak!
147
Cutting T-Joints: Front Cover
• The T joint is where the bedplate gasket is
bonded to the front cover. This bond must be
cut prior to removing the front cover.
• After you loosen all of the bolts you can slide a
cutting tool between the block/bedplate and the
front cover to sever the bonding compound.
NOTE: Failure to cut the T joint will stretch the
bedplate gasket and result in an oil leak!
148
78
Uniq u e ser vice Proced ures
Checking Oil Pressure
Test Port (EOP)
• Remove the engine oil pressure sensor
(EOP) from the oil cooler.
• Install an adapter fitting into the port where the EOP
was and install an approved oil pressure gauge.
• Follow the proper service procedures
for checking oil pressure.
• The thread size for the opening is 7/16 - 20.
149
Checking Cylinder Head Flatness
• Checking cylinder head flatness for the 6.4L engine
is carryover from the late 6.0L procedure.
• Check flatness across the short direction
(perpendicular to the longitudinal) of the head.
• Use a straight edge that is calibrated by the manufacturer
to be flat within 0.0002 in. per running foot length.
• Set the 0.002” feeler guage on each measurement
point (refer to the service procedure graphic in
the Ford workshop manual) with the straight edge
perpendicular to the longitudinal and not across the
area that contains the smaller head bolt holes. Set
the straight edge on top of the feeler gauge.
• Use a firm steady force to properly hold the straight edge
on top of the feeler gauge. Pull lightly on the feeler guage.
• The head is locally out of flat, and needs replaced
if the 0.002” feeler gauge is loose and easily
slides out from under the straight edge.
150
Short Direction
(correct)
Do Not Allow The Straight Edge To
Contact The Red Shaded Area
Checking Cylinder Head Flatness:
Straight Edge Placement
• Never lay the straight edge across the area shaded in red.
• Do not check flatness in the longitudinal
direction. Check flatness in the short
(perpindicular to longitudinal) direction only.
Longitudinal Direction
(incorrect)
151
79
Uniq u e ser vice Proced ures
EGR Cooler Service
• Servicing the EGR coolers must be
performed in the proper order.
• The coolers must first be installed loosely in the
order shown, then torqued in the proper sequence
as shown in the Ford workshop manual.
• Proper assembly is crucial due to the extreme
temperature changes within the EGR coolers.
Temperature changes of 800 deg F are possible. NOTE: All bolts, nuts, clamps, and cooler brackets
must be replaced if the coolers are removed
2nd
1st
152
Exhaust Up-Pipe Service
• Assembly of the exhaust up-pipes and EGR cooler
supply pipe must be performed in the proper order.
• The pipes must first be installed loosely in the
order shown, then torqued in the proper sequence
as shows in the Ford workshop manual.
NOTE: Failure to follow the assembly
steps can result in exhaust leaks.
3rd
1st 2nd
153
Closeup Showing
Locating Tab Fitment
Into Intake Manifold
Intake Manifold And Gaskets
• When reinstalling the intake manifold, the locating
tabs on the intake manifold gasket should face
up and toward the center of the engine.
Locating Tabs
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