2021 FORD F650/750 water pump

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

SAFETY PRECAUTIONS
WARNING: Do not overfill the fuel
tank. The pressure in an overfilled tank
may cause leakage and lead to fuel spray
and fire. WARNING:
The fuel system may
be under pressure. If you hear a hissing
sound near the fuel filler inlet, do not
refuel until the sound stops. Otherwise,
fuel may spray out, which could cause
serious personal injury. WARNING: Fuels can cause serious
injury or death if misused or mishandled. WARNING:
Gasoline may contain
benzene, which is a cancer-causing
agent. WARNING: When refueling always
shut the engine off and never allow
sparks or open flames near the fuel tank
filler valve. Never smoke or use a cell
phone while refueling. Fuel vapor is
extremely hazardous under certain
conditions. Avoid inhaling excess fumes. WARNING:
Flow of fuel through a
fuel pump nozzle can produce static
electricity. This can cause a fire if you are
filling an ungrounded fuel container. WARNING: Stop refueling after the
fuel pump nozzle automatically shuts
off for the second time. Failure to follow
this will fill the expansion space in the
fuel tank and could lead to fuel
overflowing. Observe the following guidelines when
handling automotive fuel:
•
Extinguish all smoking materials and
any open flames before refueling your
vehicle.
• Automotive fuels can be harmful or
fatal if swallowed. Fuel such as
gasoline is highly toxic and if
swallowed can cause death or
permanent injury. If swallowed, call a
physician immediately, even if no
symptoms are immediately apparent.
The toxic effects of fuel may not be
visible for hours.
• Avoid inhaling fuel vapors. Inhaling too
much fuel vapor of any kind can lead
to eye and respiratory tract irritation.
In severe cases, excessive or prolonged
breathing of fuel vapor can cause
serious illness and permanent injury.
• Avoid getting fuel liquid in your eyes. If
you splash fuel in your eyes, remove
contact lenses (if worn), flush with
water for 15 minutes and seek medical
attention. Failure to seek proper
medical attention could lead to
permanent injury.
• Fuels can also be harmful if absorbed
through the skin. If you splash fuel on
your skin, clothing or both, promptly
remove contaminated clothing and
wash your skin thoroughly with soap
and water. Repeated or prolonged skin
contact with fuel liquid or vapor causes
skin irritation.
• Be particularly careful if you are taking
“Antabuse ” or other forms of disulfiram
for the treatment of alcoholism.
Breathing gasoline vapors, or skin
contact could cause an adverse
reaction. In sensitive individuals, serious
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Fuel and Refueling

If your vehicle runs out of fuel:
•
Normally adding 4–5 gal (15– 19 L) of
fuel is enough to restart the engine. If
your vehicle is out of fuel and on a
steep grade, more than
5 gal (19 L)
may be required.
• You must purge trapped air from the
system before restarting the engine.
Purging Air From the System
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.
Any remaining air in the system self-purges
when the engine starts. The engine may
run rough or produce white smoke when
air remains in the fuel system. This is
normal and stops after a short period. If
the engine continues to run rough, have
your vehicle checked as soon as possible.
Starting the Engine
Do not crank the engine for more than 10
seconds as starter damage may occur. If
the engine fails to start, switch the ignition
off and wait 30 seconds before cranking
the engine again. See
Starting a Diesel
Engine (page 95).
RUNNING OUT OF FUEL -
GASOLINE
Avoid running out of fuel because this
situation may have an adverse effect on
powertrain components. If you run out of fuel:
•
You may need to switch the ignition
from off to on several times after
refueling to allow the fuel system to
pump the fuel from the tank to the
engine. When restarting, cranking time
takes a few seconds longer than
normal. With keyless ignition, just start
the engine. Crank time will be longer
than usual.
• Normally, adding 1 gal (3.8 L) of fuel is
enough to restart the engine. If the
vehicle is out of fuel and on a steep
grade, more than
1 gal (3.8 L) may be
required.
• The service engine soon indicator may
come on. See
Warning Lamps and
Indicators (page 66).
REFUELING - DIESEL
An engine that suddenly becomes noisy or
operates poorly after a fuel fill could be
using substandard fuel. We recommend
that you purchase diesel fuel from a
reputable fuel station.
Use only clean, approved containers that
will prevent the entry of dirt or water
whenever you store diesel fuel.
Do not store diesel fuel in a galvanized
container. The fuel dissolves the zinc in the
galvanized container. The zinc will then
remain in the fuel. If you run the
contaminated fuel through the engine, the
zinc damages the fuel injectors. Engine
damage caused may not be covered by
the vehicle Warranty.
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Fuel and Refueling

WARNING: Only refill the diesel
exhaust fluid tank in a well ventilated
area. When you remove the diesel
exhaust fluid tank filler cap or a diesel
exhaust fluid container cap, ammonia
vapors may escape. Ammonia vapors
can be irritating to skin, eyes and mucous
membranes. Inhaling ammonia vapors
can cause burning to the eyes, throat and
nose and cause coughing and watery
eyes. The diesel exhaust fluid tank has a blue
filler cap. The tank is behind the left-hand
front wheel. Fill the tank using a fluid pump
at a diesel exhaust fluid filling station or a
diesel exhaust fluid container. We
recommend Motorcraft® diesel exhaust
fluid. See Capacities and Specifications
(page
288). Only use diesel exhaust fluid that is
certified by the American Petroleum
Institute (API). Non-certified diesel exhaust
fluid use can cause damage not covered
by the vehicle Warranty.
Note:
Do not put diesel exhaust fluid in the
fuel tank or put diesel fuel in the diesel
exhaust fluid tank. This can cause damage
not covered by the vehicle Warranty.
You can purchase diesel exhaust fluid at
an authorized dealer, most highway truck
stops or you can contact roadside
assistance for help in finding a retailer that
sells diesel exhaust fluid. In addition, there
is a government website to help you find
the nearest location to purchase diesel
exhaust fluid:
http://www.discoverdef.com.
Filling the Diesel Exhaust Fluid Tank
Using a Fuel Station Pump
Filling the diesel exhaust fluid tank using
a nozzle is similar to fuel fill. The nozzle
shuts off automatically when the tank is
full. Do not continue to fill the tank as this
may cause spilling and overfill and can
cause damage to the tank in freezing
conditions.
Filling the Diesel Exhaust Fluid Tank
Using a Container
The following procedure applies to
Motorcraft diesel exhaust fluid or similar
fluid containers. Always follow the
manufacturer's instructions.
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Engine Emission ControlE210722 E163354

Why is the feature not available (line markings are gray) when I can see the lane markings
on the road?
There is standing water on the road.
Faint lane markings, for example partial yellow lane markings on concrete roads.
Lane width is too narrow or too wide.
The camera has not been calibrated after a windshield replacement.
Driving on tight roads or on uneven roads.
Vehicle accessories are blocking the camera, for example a snow plow.
STEERING
Hydraulic Power Steering
To help prevent damage to the power
steering system:
• Do not hold the steering wheel at its
furthest turning points for more than
three to five seconds when the engine
is running.
• Avoid continuously steering back and
forth with elevated engine RPM as this
may overheat the system. If trying to
free a stuck vehicle, pause between
attempts to allow the power steering
system to cool or seek assistance.
Typical steering and driving maneuvers
allow the system to cool.
• Do not operate the vehicle if the power
steering pump fluid level is below the
MIN mark on the reservoir.
• Some noise is normal during operation.
If excessive, check for low power
steering pump fluid level before
seeking service by your dealer. •
Heavy or uneven efforts may be caused
by low power steering fluid. Check for
low power steering pump fluid level
before seeking service by your dealer.
• Do not fill the power steering pump
reservoir above the MAX mark on the
reservoir, as this may result in leaks
from the reservoir.
If the power steering system breaks down
or if you switch the engine off, you can
steer the vehicle manually, but it takes
more effort.
If you have any steering components
serviced or replaced, install new fasteners.
Many fasteners have coatings with thread
adhesive, or have prevailing torque
features you cannot reuse. Do not reuse a
bolt or nut. Torque fasteners to
specifications.
Steering Tips
If the steering wanders or pulls, check for:
• An improperly inflated tire.
• Uneven tire wear.
• Loose or worn suspension
components.
• Loose or worn steering components.
• Improper vehicle alignment.
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Driving Aids

Engine compartment (with engine off)
Inspect for glazing, fraying or cracking. There should be no
more than 5-7 cracks per rib, per 1 in (2.5 cm)
Belts (fan, alternator,
water pump and air
conditioning
compressor)
Inspect for signs of fluid puddles or dripping fluid on the
ground under the engine, or the underside of the engine.
Fluid leaks
Inspect for debris that may have collected on the HVAC air
inlet grille or inside the exterior module as this may reduce
system performance.
HVAC air inlet Engine starting (with parking brake applied)
Before entering the cab, verify that the vehicle is equipped
with spare electrical fuses (if used), three red reflective
triangles, a properly charged and rated fire extinguisher and
wheel chocks.
Safety and emergency
equipment
Walk around the vehicle and verify all steps and grab handles,
inside and out (as well as behind), are tight and clean. Use
extreme caution and a three-point stance at all times.
Inspect door latches for proper closing, latching and locking.
Set the parking brake. Make sure the gearshift lever is in
neutral (N) or park (P) (if equipped with a park position).
Starting the engine
Diesel engine:
Turn the key to the on position. Turn the key
to start when the wait to start indicator light in the instrument
cluster turns off.
Gasoline engine:
Turn the key to start, and then release it
as soon as the engine starts.
Verify pressure builds to normal operating range.
Engine oil pressure
A tone indicating low air pressure should sound immediately
after the engine starts but before the compressor has built-
up pressure. The tone should stop when the air pressure
reaches
70 psi (483 kPa). Let the air pressure build to
governed cutout pressure, which should occur between
115– 130 psi (793–896 kPa)
.
Low air pressure warning
tone (if equipped with an
air compressor)
Press the accelerator and verify that it operates smoothly,
without any binding or irregular feel. Release the pedal and
verify the engine returns to idle speed immediately.
Accelerator
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Vehicle Inspection Guide