2021 FORD F650/750 fuel filter

Interior Mirror
..................................................62
Sun Visors ........................................................
62
Instrument Cluster
Gauges ..............................................................
63
Warning Lamps and Indicators ...............
66
Audible Warnings and Indicators ............
69
Information Displays
General Information .....................................
70
Information Messages .................................
73
Climate Control
Manual Climate Control .............................
79
Hints on Controlling the Interior Climate ........................................................................\
..
80
Heated Exterior Mirrors ................................
81
Seats
Sitting in the Correct Position ..................
82
Head Restraints .............................................
82
Manual Seats .................................................
84
Power Seats ....................................................
85
Rear Seats .......................................................
86
Front Seat Armrest .......................................
87
Rear Seat Armrest ........................................
88
Auxiliary Power Points
Auxiliary Power Points ................................
89
USB Ports
Locating the USB Ports ...............................
91
Charging a Device ..........................................
91
Storage Compartments
Overhead Console ........................................
92
Starting and Stopping the Engine
General Information .....................................
93Ignition Switch
...............................................
93
Starting a Gasoline Engine ........................
94
Starting a Diesel Engine .............................
95
Switching Off the Engine ...........................
96
Engine Idle Shutdown .................................
96
Engine Block Heater .....................................
97
Fuel and Refueling
Safety Precautions .......................................
99
Fuel Quality - Diesel ...................................
100
Fuel Quality - Gasoline ..............................
103
Running Out of Fuel - Diesel ...................
103
Running Out of Fuel - Gasoline .............
104
Refueling - Diesel ........................................
104
Refueling - Gasoline ...................................
105
Fuel Consumption ......................................
106
Fuel Tank Selector Switch .......................
108
Engine Emission Control
Emission Law ................................................
109
Catalytic Converter ......................................
110
Selective Catalytic Reductant System - Diesel .............................................................
112
Diesel Particulate Filter ..............................
116
Transmission
Automatic Transmission ...........................
122
Power Take-Off ............................................
126
Rear Axle
General Information ...................................
128
Electronic Locking Differential ...............
128
2-Speed Rear Axle ......................................
129
Brakes
General Information ...................................
130
Hints on Driving With Anti-Lock Brakes ........................................................................\
..
131
Parking Brake ..................................................
131
Hill Start Assist .............................................
134
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Table of Contents

Fuses
Fuse Specification Chart
..........................193
Changing a Fuse ..........................................
201
Vehicle Inspection Guide
Vehicle Inspection Information .............
203
Maintenance
General Information ....................................
212
Opening and Closing the Hood ..............
213
Under Hood Overview - 6.7L Diesel ......
215
Under Hood Overview - 7.3L ....................
216
Engine Oil Dipstick - 7.3L ...........................
217
Engine Oil Dipstick - 6.7L Diesel .............
217
Engine Oil Check - 7.3L ...............................
217
Engine Oil Check - 6.7L Diesel ................
218
Changing the Engine Oil and Oil Filter ........................................................................\
.
219
Oil Change Indicator Reset .....................
220
Changing the Engine Air Filter - 6.7L Diesel ............................................................
221
Changing the Engine Air Filter - 7.3L .....
223
Draining the Fuel Filter Water Trap - 6.7L Diesel ...........................................................
225
Engine Coolant Check - 7.3L ...................
226
Engine Coolant Check - 6.7L Diesel ......
231
Automatic Transmission Fluid Check ........................................................................\
236
Brake Fluid Check ........................................
237
Power Steering Fluid Check ....................
238
Changing the 12V Battery ........................
239
Adjusting the Headlamps .......................
240
Washer Fluid Check ...................................
242
Fuel Filter - 7.3L ............................................
242
Checking the Wiper Blades .....................
242
Changing the Wiper Blades ....................
242
Removing a Headlamp .............................
243
Changing a Bulb ..........................................
243Changing the Engine-Mounted and
Diesel Fuel Conditioner Module Fuel
Filters - 6.7L Diesel .................................
244
Electrical System Inspection ..................
247
Air Induction System Inspection ...........
247
Exhaust System Inspection ....................
248
Brake System Inspection .........................
248
Axle Inspection .............................................
251
Steering System Inspection ....................
252
Suspension System Inspection .............
252
Frame and Tow Hook Inspection ..........
253
Rear Axle Fluid Check ................................
253
Spring U-Bolt Check ..................................
253
Vehicle Care
General Information ..................................
255
Cleaning Products ......................................
255
Cleaning the Exterior .................................
256
Waxing .............................................................
257
Cleaning the Engine ...................................
257
Cleaning the Windows and Wiper Blades ........................................................................\
257
Cleaning the Interior ..................................
258
Cleaning the Instrument Panel and Instrument Cluster Lens ......................
258
Repairing Minor Paint Damage .............
259
Cleaning the Wheels .................................
259
Vehicle Storage ...........................................
260
Wheels and Tires
Tire Care .........................................................
262
Using Snow Chains .....................................
277
Changing a Road Wheel ...........................
277
Technical Specifications ..........................
279
Capacities and Specifications
Engine Specifications - 6.7L Diesel .......
281
Engine Specifications - 7.3L ....................
282
Motorcraft Parts - 6.7L Diesel ................
283
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Table of Contents

Right-hand side.
A
Left-hand side.
B
Warnings WARNING: Throughout this guide,
you will find warnings identified by the
warning symbol. Warnings remind you
to be especially careful to reduce the risk
of personal injury.
Diesel Engine Information
The diesel engine fuel system is a
pressurized two-stage filtration system
and consists of:
• A frame-mounted Fuel and Water
Separator primary filter with an electric
fuel pump and water drain
• An engine-mounted secondary fuel
filter
• A fuel injector for each cylinder (8
total)
• A high-pressure fuel pump
• A high-pressure fuel rail for each
cylinder bank (2 total)
• Numerous high-pressure pipes from
the high-pressure pump to the rails,
and rails to the injectors The fuel and water separator removes
both water and impurities from the fuel.
The engine-mounted filter filters finer
impurities from the diesel fuel. The
engine-mounted fuel filter and the
frame-mounted fuel filter should be
changed at the recommended service
interval or when indicated by the
information display LOW FUEL PRESSURE
message. See
Scheduled Maintenance
(page 319).
The fuel and water separator should be
drained at regular intervals (recommended
at every oil change) or when indicated by
the information display and water in fuel
indicator light. See
Fuel Quality (page
100).
Proper fuel filter maintenance and prompt
water draining when the water in fuel light
illuminates is essential to prevent injection
equipment damage. Ignoring the water in
fuel light or the information display
message WATER IN FUEL DRAIN FILTER
can cause your vehicle to go into a reduced
power mode.
A frame-mounted electric fuel pump
located inside the fuel and water separator
draws fuel from the fuel tank to provide
pressurized fuel to the engine. The fuel
pump contains a pressure relief valve for
overpressure protection in the event of
restricted flow.
The fuel injection system is controlled
through the powertrain control module.
Engine Protection Mode
Ford diesel engines are equipped with
engine protection and emission control
systems. These systems monitor critical
temperatures and pressures, and modify
engine operation accordingly. These
modified engine performance
characteristics are normal.
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing IntroductionE154903

If these modified engine performance
characteristics persist for an extended
period and either the service engine soon
or powertrain malfunction, reduced power,
electronic throttle control light is
illuminated, have the system checked by
an authorized dealer.
Service engine soon
Powertrain malfunction, reduced
power, electronic throttle control
Diesel Lubrication System
It is important to change the engine oil at
the recommended service intervals or
when indicated by the information display
to maintain oil viscosity. Extending the oil
and filter change interval beyond the
recommended interval can negatively
affect engine performance, fuel economy
and engine life. See Engine Oil Check
(page 218).
Engine and secondary cooling system
The cooling system contains a primary
cooling loop to cool the engine and a
secondary cooling loop to cool the
transmission, charge air, and fuel. The
coolant serves three primary purposes: to
provide heat transfer, freeze point
protection, and corrosion protection using
additives.
Vehicles with diesel engines typically are
used to carry heavy loads and accumulate
mileage rapidly. These two factors may
cause the additives in the coolant to wear
out in a shorter time. You can find more
information about coolant additives and
coolant change intervals in the coolant
chapter. See
General Maintenance
Information (page 319). Operating the
engine with insufficient coolant or coolant
additive can cause severe engine damage. Selective catalytic reduction system
Your vehicle is equipped with a selective
catalytic reduction system designed to
reduce emission levels of nitrogen oxides
from the exhaust of your diesel engine. This
system relies on the use of Diesel Exhaust
Fluid (DEF) that you must replenish at
certain intervals. Failure to maintain proper
DEF levels or if the DEF becomes
contaminated will result in vehicle speed
limitations or result in your vehicle entering
an idle-only mode. See
Selective
Catalytic Reductant System (page 112).
Minor Troubleshooting Guide
If the engine won ’t crank WARNING:
Battery posts,
terminals and related accessories
contain lead and lead compounds. Wash
hands after handling.
Turn on the headlights. If the lights are dim,
do not go on at all or when the ignition is
turned to the start position, the lights
become dim or go out, the battery
connections may be loose or corroded, or
the battery may be discharged. If there is
a clicking or stuttering sound coming from
the engine compartment when you turn
the key to the start position, this may also
indicate a loose or corroded battery
connection.
Check the battery connections at the
battery posts, cable connection to the
engine grounding point and at the starter
connection.
If you suspect a discharged battery, have
it checked and corrected.
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Introduction

•
The gearshift lever must be in P (Park)
or N (Neutral) in order for the starter
to operate.
• Try operating the starter switch several
times. This operation may clean
potentially corroded contacts or make
the switch temporarily operable until
you can reach the dealer.
• If all electrical connections are tight
and you need assistance to start, See
Jump Starting the Vehicle (page 183).
If engine cranks but won ’t start
Prolonged starter cranking (in excess of 10
seconds) could cause damage to the
starter motor or the high-pressure fuel
pump.
• Check the fuel gauge. You may be out
of fuel. If the gauge shows that there
is fuel in the tank, the trouble may be
in the electrical system or the fuel
system. If equipped with an auxiliary
tank, be sure that the tank control
switch is set for the tank with fuel and
not on an empty tank.
• Leaving your ignition key turned to on
for over two minutes without starting
may make starting difficult because
the glow plugs will cease activation.
Reset the system by turning the ignition
key to off and then back to on again.
Note: If the system is out of fuel and the
engine will not start, do not continue
cranking the engine. Continued cranking can
damage the high-pressure fuel pump.
If the engine runs hot
The following could cause the engine to
overheat:
• Lack of coolant
• Dirty cooling system.
• Plugged radiator fins, A/C condenser
and/or oil cooler
• Malfunctioning fan drive •
Driving with frozen coolant
• Sticking thermostat
• Overloading or pulling heavy trailers
during hot weather
• Grill or radiator air blockage
• Slipping or missing drive belt
• Plugged or very dirty air filter
If fuses burn out WARNING: Replacement fuses and
circuit breakers must always be the
same rating as the original equipment
shown. Never replace a fuse or circuit
breaker with one of a higher rating.
Higher rated fuses or circuit breakers
could allow circuit overloading in the
event of a circuit malfunction, resulting
in severe vehicle damage or personal
injury due to fire.
Burned-out or blown fuses usually indicate
an electrical short-circuit, although a fuse
may occasionally burn out from vibration.
Insert a second fuse. If this fuse
immediately burns out and you cannot
locate the cause, return your vehicle to
your dealer for a circuit check. See
Changing a Fuse
(page 201).
Selective catalytic reduction system
speed limit and Idle-only modes
If the vehicle ’s speed is limited or in an
idle-only mode, the selective catalytic
reduction system may be limiting the
vehicle ’s functions due to low or
contaminated DEF. Check the DEF. See
Selective Catalytic Reductant System
(page
112).
SYMBOLS GLOSSARY
These are some of the symbols you may
see on your vehicle.
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Introduction

Air conditioning system
Air conditioning system lubricant
type
Anti-lock braking system
Avoid smoking, flames or sparks
Battery
Battery acid
Brake fluid - non petroleum
based
Brake system
Brake system
Cabin air filter
Check fuel cap
Child safety door lock or unlock
Child seat lower anchor
Child seat tether anchor
Cruise control Do not open when hot
Engine air filter
Engine coolant
Engine coolant temperature
Engine oil
Explosive gas
Fan warning
Fasten seatbelt
Flammable
Front airbag
Front fog lamps
Fuel pump reset
Fuse compartment
Hazard flashers
Heated rear window
11
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing IntroductionE162384 E231157 E270480 E71340 E71880 E231160 E67017

Transmission Tow/Haul
Illuminates when you switch on
the tow/haul feature. If the light
flashes steadily, have the system
serviced immediately, damage to the
transmission could occur.
Two Speed Axle (If Equipped) The Two Speed Axle indicator
comes on when you switch the
low axle range on.
Wait to Start
(If Equipped) Illuminates when you switch the
ignition on as part of the
pre-start system. Wait until the
wait to start indicator turns off before
attempting to start vehicle. WARNING:
Do not use starting
fluid, for example ether, in the air intake
system. Such fluid could cause
immediate explosive damage to the
engine and possible personal injury.
Water in Fuel
(If Equipped) Illuminates when the fuel
filter/water separator has a
significant quantity of water in
it.
If the light illuminates when the engine is
running, stop the vehicle as soon as safely
possible, shut off the engine, then drain the
fuel filter/water separator.
Allowing water to stay in the system could
result in extensive damage to, or failure of,
the fuel injection system. WARNING:
Do not drain the
water-in-fuel separator while the engine
is running. Failure to follow this warning
may result in fire, serious injury, death or
property damage.
AUDIBLE WARNINGS AND
INDICATORS
Headlamps On Warning Chime
Sounds when you remove the key from the
ignition and open the driver's door and you
have left the headlamps or parking lamps
on.
Key in Ignition Warning Chime
Sounds when you open the driver's door
and you have left the key in the ignition.
Parking Brake On Warning Chime
Sounds when you have left the parking
brake on and drive your vehicle. If the
warning chime remains on after you have
released the parking brake, have the
system checked by your authorized dealer
immediately.
69
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Instrument ClusterE246592 E208809

Action
Message
The selective catalytic reduction system detects a fault. Thevehicle ’s top speed becomes limited upon restarting. Have
the system checked by an authorized dealer.
SPEED LIMITED TO 50
MPH UPON RESTART EXHAUST FLUIDSYSTEM FAULT
The selective catalytic reduction system detects a fault. Thevehicle ’s top speed is limited. Have the system checked by
an authorized dealer.
SPEED LIMITED TO 50
MPH EXHAUST FLUID SYSTEM FAULT
The selective catalytic reduction system detects a fault. Theengine enters into an idle–only mode. Have the system checked by an authorized dealer.
ENGINE IDLED SOON
EXHAUST FLUID
SYSTEM FAULT SEE MANUAL
The selective catalytic reduction system detects a fault. The
engine eventually enters into an idle–only mode. Press OK to override the idle mode. Have the system checked by an authorized dealer.
ENGINE IDLED - SEE
OWNER’ S MANUAL
EXHAUST FLUID SYSTEM FAULT
A fuel filter change is required.
FUEL FILTER CHANGE
REQUIRED
You must have your vehicle serviced by an authorized dealer
if approximately two hours after the EXHAUST OVERLOADED DRIVE TO CLEAN message has displayed and you have not
driven your vehicle above 30 mph (48 km/h) for at least 20
minutes to clean the diesel particulate filter.
EXHAUST OVER LIMIT
SERVICE NOW
You are responsible for assuring that you operate your vehiclein a manner that allows diesel particulate filter cleaning tooccur. Ignoring the EXHAUST OVER LIMIT SERVICE NOW warning message could lead to reduced drivability and
customer expense, including damage to the diesel particulate filter. Your new vehicle warranty may not cover this damage.
The water separator has reached a predetermined capacity and needs draining.
WATER IN FUEL DRAIN
FILTER SEE MANUAL
A low fuel pressure condition has occurred due to cold, lowfuel level or fuel filters need to be changed.
LOW FUEL PRESSURE
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Information Displays