2021 FORD F650/750 fuel pressure

Protected Component
Fuse
Rating
Fuse
Number
Not used.
—
28
Alternator 1 A-Line.
10 A
29
Not used.
—
30
Hydromax pump.
60 A
31
Powertrain control module.
20 A
32
Canister vent solenoid (gas).
20 A
33
Canister purge solenoid (gas).
Variable cam timing actuator 11 (gas).
Heated exhaust gas oxygen sensor (gas).
Urea tank power (diesel).
Exhaust gas recirculation cool bypass valve (diesel).
A/C clutch relay.
10 A
34
Customer access vehicle power 3 feed.
Variable oil pump (diesel).
Cooling fan (diesel).
Fan clutch (gas).
Coil on plug (gas)
20 A
35
Urea tank (diesel).
Glow plug controller (diesel).
Nitrogen oxide sensor control module (diesel).
Particulate matter sensor (diesel).
Fuel volume control value (diesel).
10 A
36
Fuel pressure regulator (diesel).
Not used.
—
37
Not used.
—
38
Not used.
—
39
Trailer brake control module.
30 A
41
Not used.
—
43
Not used.
—
45
A/C clutch solenoid.
10 A
46
Upfitter relay 1.
40 A
47
Upfitter run and accessory feed.
20 A
48
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Fuses

Protected Component
Fuse
Rating
Fuse
Number
Pump electronics module (gas).
30 A
49
Fuel pump (diesel).
Injector power (gas).
15 A
50
Power point #1.
20 A
51
Not used.
—
52
Trailer tow park lamp.
30 A
53
Not used.
—
54
Upfitter relay 3.
20 A
55
Not used.
—
56
USB power.
5 A
58
Not used.
—
59
Dual fuel tank selector switch (diesel).
10 A
60
Not used.
—
61
Not used.
—
62
Driver seat compressor.
20 A
63
Passenger seat compressor.
20 A
64
Not used.
—
65
Four pack solenoid differential lock.
10 A
66
Hydromax relay power.
10 A
67
Not used.
—
69
Inverter.
40 A
70
Anti-lock brake system valves.
30 A
71
Brake on-off switch (hydraulic brakes).
10 A
72
Stop lamp air pressure switch 1 and 2 (air brakes).
Not used.
—
73
Heated mirror.
15 A
74
Not used.
—
75
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Fuses

2. Locate the diesel fuel conditioner
module and place an appropriate
container under the drain port. 3.
Rotate the drain counterclockwise until
the O-ring is visible. Allow the diesel
fuel conditioner module to drain for
approximately 25 seconds or until
clean fuel is observed. Rotate the drain
clockwise to tighten it. If no liquid
drains, there may be a clog in the drain.
Have the conditioner module serviced
by an authorized dealer.
4. Make sure that you fully tighten the drain valve and then remove the
container from under your vehicle.
5. Restart the engine. If the Water in Fuel
Drain Filter message and light
continues to illuminate, have the fuel
system checked and repaired. ENGINE COOLANT CHECK -
7.3L WARNING:
Do not remove the
coolant reservoir cap when the engine is
on or the cooling system is hot. Wait 10
minutes for the cooling system to cool
down. Cover the coolant reservoir cap
with a thick cloth to prevent the
possibility of scalding and slowly remove
the cap. Failure to follow this instruction
could result in personal injury. WARNING:
Do not put coolant in
the windshield washer reservoir. If
sprayed on the windshield, coolant could
make it difficult to see through the
windshield. WARNING:
To reduce the risk of
personal injury, make sure the engine is
cool before unscrewing the coolant
pressure relief cap. The cooling system
is under pressure. Steam and hot liquid
can come out forcefully when you loosen
the cap slightly. WARNING:
Do not add coolant
further than the MAX mark.
When the engine is cold, check the
concentration and level of the coolant at
the intervals listed in the scheduled
maintenance information. See Scheduled
Maintenance
(page 319).
Note: Make sure that the coolant level is
between the
MIN and MAX marks on the
coolant reservoir.
Note: Coolant expands when it is hot. The
level may extend beyond the
MAX mark.
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing MaintenanceE163360

CHANGING THE 12V BATTERY
WARNING: This vehicle may be
equipped with more than one battery,
removal of cable from only one battery
does not disconnect the vehicle
electrical system. Be sure to disconnect
cables from all batteries when
disconnecting power. Failure to do so
may cause serious personal injury or
property damage. WARNING:
Batteries normally
produce explosive gases which can
cause personal injury. Therefore, do not
allow flames, sparks or lighted
substances to come near the battery.
When working near the battery, always
shield your face and protect your eyes.
Always provide proper ventilation. WARNING:
When lifting a
plastic-cased battery, excessive pressure
on the end walls could cause acid to flow
through the vent caps, resulting in
personal injury and damage to the
vehicle or battery. Lift the battery with a
battery carrier or with your hands on
opposite corners. WARNING:
Keep batteries out of
reach of children. Batteries contain
sulfuric acid. Avoid contact with skin,
eyes or clothing. Shield your eyes when
working near the battery to protect
against possible splashing of acid
solution. In case of acid contact with skin
or eyes, flush immediately with water for
a minimum of 15 minutes and get prompt
medical attention. If acid is swallowed,
call a physician immediately.
Note: If your battery has a cover/shield,
make sure it is reinstalled after the battery
has been cleaned or replaced. Note:
Battery posts, terminals and related
accessories contain lead and lead
compounds. Wash hands after handling.
Note: Electrical or electronic accessories
or components added to the vehicle by the
dealer or the owner may adversely affect
battery performance and durability.
Your vehicle is equipped with a Motorcraft
maintenance-free battery which normally
does not require additional water during
its life of service.
For longer, trouble-free operation, keep the
top of the battery clean and dry. Also,
make certain the battery cables are always
tightly fastened to the battery terminals.
If you see any corrosion on the battery or
terminals, remove the cables from the
terminals and clean with a wire brush. You
can neutralize the acid with a solution of
baking soda and water.
It is recommended that the negative
battery cable terminal be disconnected
from the battery if you plan to store your
vehicle for an extended period of time.
Because your vehicle ’s engine is
electronically controlled by a computer,
some control conditions are maintained
by power from the battery. When the
battery is disconnected or a new battery
is installed, the engine must relearn its idle
and fuel trim strategy for optimum
driveability and performance. To begin this
process
1. With the vehicle at a complete stop, set the parking brake.
2. Put the gearshift in park (P) or neutral (N) and turn off all accessories.
3. Start the engine. Run the engine until it reaches normal operating
temperature.
4. Allow the engine to idle for at least one
minute.
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Maintenance

2.
Install the lower portion of the housing
on the top portion. Tighten by hand
until you feel a strong resistance.
Continue to tighten with a 32mm
socket wrench until the mechanical
stop on the bottom meets the top.
3. Connect the electrical connector.
4. Tighten the drain plug, turn it clockwise
until it stops and you feel a strong
resistance. Do not use any tools to
tighten the drain plug.
5. Switch the ignition on for 30 seconds and then switch the ignition off.
Repeat this operation six times in a row
to purge any trapped air from the fuel
system.
Engine-mounted Fuel Filter
Although the fuel system is not fully
pressurized when the vehicle is off, some
residual pressure may remain in the fuel
system since it can take some time for the
pressure to completely bleed off.
Therefore, we recommend you place an
absorbent cloth below the filter connectors
to absorb any fuel that may drain.
The engine-mounted fuel filter is a plastic
disposable cartridge. Removal 1.
Disconnect the fuel lines by squeezing
the connector tabs and pulling the lines
straight off. 2.
Rotate the filter fully counterclockwise
until the peg is at the far end of the slot.
3. Pull the filter straight up from the bracket and discard the filter.
Installation
1. Install the new filter into the filter bracket. Turn the filter clockwise to
lock it in place.
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1 E226214
2
3

CLEANING THE EXTERIOR
Wash your vehicle regularly with cool or
lukewarm water and a neutral pH
shampoo, we recommend Motorcraft
Detail Wash.
•
Never use strong household detergents
or soap, for example dish washing or
laundry liquid. These products can
discolor and spot painted surfaces.
• Never wash your vehicle when it is hot
to the touch, or during strong or direct
sunlight.
• Dry your vehicle with a chamois or soft
terry cloth towel to eliminate water
spotting.
• Immediately remove fuel spillages, bird
droppings, insect deposits and road tar.
These may cause damage to your
vehicle ’s paintwork or trim over time.
We recommend Motorcraft Bug and
Tar Remover.
• Remove any exterior accessories, for
example antennas, before entering a
car wash.
• When filling with AdBlue®, remove any
residue on painted surfaces
immediately.
Note: Suntan lotions and insect repellents
can damage painted surfaces. If these
substances come in contact with your
vehicle, wash the affected area as soon as
possible.
Cleaning the Headlamps
Note: Do not scrape the headlamp lenses
or use abrasives, alcoholic solvents or
chemical solvents to clean them.
Note: Do not wipe the headlamps when
they are dry. Exterior Chrome Parts
•
Apply a high quality-cleaning product
to bumpers and other chrome parts.
Follow the manufacturer ’s instructions.
We recommend Motorcraft Custom
Bright Metal Cleaner.
• Do not apply the cleaning product to
hot surfaces. Do not leave the cleaning
product on chrome surfaces longer
than the time recommended.
• Using non-recommended cleaners can
result in severe and permanent
cosmetic damage.
Note: Never use abrasive materials, for
example steel wool or plastic pads as they
can scratch the chrome surface.
Note: Do not use chrome cleaner, metal
cleaner or polish on wheels or wheel covers.
Exterior Plastic Parts
For routine cleaning we recommend
Motorcraft Detail Wash. If tar or grease
spots are present, we recommend
Motorcraft Bug and Tar Remover.
Stripes or Graphics (If Equipped)
Hand washing your vehicle is preferred
however, pressure washing may be used
under the following conditions:
• Do not use water pressure higher than
2,000 psi (14,000 kPa)
.
• Do not use water hotter than
179°F
(82°C).
• Use a spray with a
40° wide spray
angle pattern.
• Keep the nozzle at a
12 in (305 mm)
distance and 90° angle to your
vehicle's surface.
Note: Holding the pressure washer nozzle
at an angle to the vehicle's surface may
damage graphics and cause the edges to
peel away from the vehicle's surface.
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Vehicle Care

WARNING: To reduce the
risk of serious injury, when
mounting replacement tires and
wheels, you should not exceed
the maximum pressure indicated
on the sidewall of the tire to set
the beads without additional
precautions listed below. If the
beads do not seat at the
maximum pressure indicated,
re-lubricate and try again. WARNING:
When inflating
the tire for mounting pressures
up to
20 psi (1.38 bar) greater
than the maximum pressure on
the tire sidewall, the following
precautions must be taken to
protect the person mounting the
tire: WARNING:
To reduce the
risk of serious injury, when
mounting replacement tires and
wheels, you should not exceed
the maximum pressure indicated
on the sidewall of the tire to set
the beads without additional
precautions listed below. If the
beads do not seat at the
maximum pressure indicated,
re-lubricate and try again.
• Stand at a minimum of
12 ft
(3.66 m) away from the wheel
and tire assembly.
• Use both eye and ear
protection. WARNING: For a mounting
pressure more than
20 psi
(1.38 bar) greater than the
maximum pressure, a Ford
dealer or other tire service
professional should do the
mounting. WARNING:
Always inflate
steel carcass tires with a remote
air fill with the person inflating
standing at a minimum of
12 ft
(3.66 m) away from the wheel
and tire assembly.
Important: Remember to replace
the wheel valve stems when the
road tires are replaced on your
vehicle
It is recommended that the two
front tires or two rear tires
generally be replaced as a pair.
Replacing a Tire That is
Greenhouse Gas Certified
The tires installed on this vehicle
at the factory as original
equipment are certified for
Greenhouse Gas and Fuel
Efficiency regulations.
Replacement tires must be of
equal or lower rolling resistance
level (TRRL or Crr). Consult with
your tire supplier(s) for
appropriate replacement tires.
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Wheels and Tires

Sometimes irregular tire wear can
be corrected by rotating the tires.
USING SNOW CHAINS
WARNING: Snow tires must be the
same size, load index, and speed rating
as those originally provided by Ford. Use
of any tire or wheel not recommended
by Ford can affect the safety and
performance of your vehicle, which could
result in an increased risk of loss of
vehicle control, vehicle rollover, personal
injury, and death. Additionally, the use
of non-recommended tires and wheels
could cause steering, suspension, axle,
transfer case, or power transfer unit
failure. It is also strongly advised to
follow the Ford recommended tire
inflation pressure found on the Safety
Compliance Certification Label (affixed
to either the door hinge pillar, door-latch
post, or the door edge that meets the
door-latch post, next to the driver ’s
seating position), or Tire Label which is
located on the B-Pillar or the edge of the
driver door. Failure to follow the tire
pressure recommendations can cause
uneven treadwear patterns and
adversely affect the way your vehicle
handles.
The tires on your vehicle have all-weather
treads to provide traction in rain and snow.
However, in some climates, you may need
to use snow tires and cables. If you need
to use cables, it is recommended that steel
wheels (of the same size and
specifications) be used, as cables may chip
aluminum wheels.
Note: The suspension insulation and
bumpers help prevent vehicle damage. Do
not remove these components from your
vehicle when using snow tires and chains. Follow these guidelines when using snow
tires and chains:
•
If possible, avoid fully loading your
vehicle.
• Use only SAE Class S chains.
• Install chains securely, verifying that
the chains do not touch any wiring,
brake lines or fuel lines.
• Drive cautiously. If you hear the chains
rub or bang against your vehicle, stop
and retighten the chains. If this does
not work, remove the chains to prevent
damage to your vehicle.
• Remove the tire chains when they are
no longer needed. Do not use tire
chains on dry roads.
If you have any questions regarding snow
chains or cables, please contact your
authorized dealer.
CHANGING A ROAD WHEEL
If you get a flat tire while driving, do not
apply the brake heavily. Instead, gradually
decrease your speed. Hold the steering
wheel firmly and slowly move to a safe
place on the side of the road.
Tire Change Procedure WARNING:
Do not work on your
vehicle when the jack is the only support
as your vehicle could slip off the jack.
Failure to follow this instruction could
result in personal injury or death.
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Wheels and Tires