2023 FORD F650/750 fuel pump

E154903
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 injectorsThe 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
106).
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.
8
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 190).
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 208).
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 118).
SYMBOLS GLOSSARY
These are some of the symbols you may
see on your vehicle.
10
Introduction

E162384E162384Air conditioning system
E231157
Air conditioning system lubricant
type
Anti-lock braking system
Avoid smoking, flames or sparks
Battery
Battery acid
Brake fluid - non petroleum
based
Brake system
E270480
Brake system
E139223E139223Cabin air filter
Check fuel cap
Child safety door lock or unlock
Child seat lower anchor
E141E141128128Child seat tether anchor
E71340
Cruise control
Do not open when hot
Engine air filter
Engine coolant
Engine coolant temperature
Engine oil
Explosive gas
Fan warning
E71880
Fasten seatbelt
E231160
Flammable
E67017
Front airbag
Front fog lamps
Fuel pump reset
Fuse compartment
Hazard flashers
Heated rear window
11
Introduction

Note:To stop the connectivity device from
sharing this information, for example,
location and vehicle data, see your
Connectivity Settings through the FordPass
app. You may also remove the vehicle from
your FordPass account.
Note:The service can be unavailable or
interrupted for a number of reasons, for
example, environmental or topographical
conditions and data plan coverage.
Note:To find out if your vehicle has
connectivity technology, visit
www
.FordConnected.com.
Note:If you plan to no longer use your
vehicle, for example, by selling or donating
it, remember to remove the vehicle from
your FordPass account. If you recently
purchased the vehicle and want to disable
or establish new connectivity, please
contact the Ford Customer Relationship
Center through the FordPass app or by using
the e-mail address on the local Ford
website.
Vehicles With SYNC
Mobile Device Data
If you connect a mobile device to your
vehicle, you can display data from your
device on the touchscreen for example,
music and album art. You can share your
vehicle data with mobile apps on your
device through the system.
The mobile apps function operates by your
connected device sending data to us in the
United States. The data is encrypted and
includes the vehicle identification number
of your vehicle, the SYNC module serial
number, odometer, enabled apps, usage
statistics and debugging information. We
retain it only as long as necessary to
provide the service, to troubleshoot, for
continuous improvement and to offer you
products and services that may be of
interest to you according to your
preferences and where allowed by law.If you connect a cell phone to the system,
the system creates a profile that links to
that cell phone. The cell phone profile
enables more mobile features and efficient
operation. The profile contains, for
example, data from your phonebook, read
and unread text messages and call history,
including history of calls when your cell
phone was not connected to the system.
If you connect a media device, the system
creates and retains a media device index
of supported media content. The system
also records a short diagnostic log of
approximately 10 minutes of all recent
system activity.
The cell phone profile, media device index
and diagnostic log remain in your vehicle
unless you delete them and are generally
accessible only in your vehicle when you
connect your cell phone or media device.
If you no longer plan to use the system or
your vehicle, we recommend you use the
master reset function to erase the stored
information.
System data cannot be accessed without
special equipment and access to your
vehicle's module.
For additional information about our
privacy policy, refer to your local Ford
website.
Note:To find out if your vehicle has
connectivity technology, visit
www
.FordConnected.com.
Vehicles With an Emergency Call
System
When the emergency call system is active,
it may disclose to emergency services that
your vehicle has been in a crash involving
the deployment of an airbag or activation
of the fuel pump shut-off. Certain versions
or updates to the emergency call system
may also be capable of electronically or
verbally disclosing to emergency services
operators your vehicle location or other
16
Introduction

Engine Oil Pressure Gauge
Indicates engine oil pressure. At normal
operating temperature, the level indicator
is in the normal range. If the pressure gauge
falls below the normal range, stop your
vehicle, switch off the engine and check
the engine oil level. Add oil if needed. If the
oil level is correct, have your vehicle
checked by an authorized dealer.
Engine Coolant Temperature
Gauge
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.
Indicates engine coolant temperature. At
normal operating temperature, the level
indicator is in the normal range. If the
engine coolant temperature exceeds the
normal range, stop your vehicle as soon as
possible, switch off the engine and let the
engine cool.
Fuel Gauge
The fuel gauge indicates about how much
fuel is in the fuel tank.
The arrow adjacent to the fuel pump
symbol indicates on which side of your
vehicle the fuel filler door is located.
Note:The fuel gauge may vary slightly
when your vehicle is moving or on a slope.Low Fuel Reminder
A low fuel level reminder displays and
sounds when the distance to empty
reaches 50 mi (80 km), 25 mi (40 km),
10 mi (20 km) and 0 mi (0 km) for all
vehicle keys.
Note:The low fuel reminder can appear at
different fuel gauge positions depending on
fuel economy conditions. This variation is
normal.
Distance to Empty
Indicates the approximate distance your
vehicle can travel on the fuel remaining in
the tank. Changes in driving pattern can
cause the value to not only decrease but
also increase or stay constant for periods
of time.
Configurable Gauge
Transmission Fluid Temperature Gauge
Indicates transmission fluid temperature.
At normal operating temperature, the level
indicator is in the normal range. If the
transmission fluid temperature exceeds
the normal range, stop your vehicle as soon
as possible and verify the airflow is not
restricted by snow or debris blocking
airflow through the grille.
Special operating conditions such as
snowplowing, towing, or off-road use may
cause higher than normal operating
temperatures. See Special Operating
Conditions Scheduled Maintenance
(page 329).
To lower the transmission temperature
into the normal range, alter the severity of
your driving conditions. Operating the
transmission for extended periods with the
gauge in the higher than normal area may
cause internal transmission damage. If the
gauge continues to show high
temperatures, see an authorized dealer.
65
Instrument Cluster

Door Ajar
Displays when the ignition is on
and any door is not completely
closed.
Electronic Locking Differential (If
Equipped)
E163170
Illuminates when using the
electronic locking differential.
Engine Coolant Temperature
If it illuminates when your vehicle
is moving, this indicates that the
engine is overheating. Stop your
vehicle as soon as it is safe to do so and
switch the engine off. Have your vehicle
checked as soon as possible. See Engine
Coolant Check (page 238). idk
Engine Oil Pressure
If it illuminates with the engine
running, or when you are driving,
this indicates a malfunction.
Stop your vehicle as soon as it is safe to
do so and switch off the engine. Check the
engine oil level.
Note:Do not resume your journey if it
illuminates despite the level being correct.
Have the system checked as soon as
possible.
Exhaust Brake On (If Equipped)
E171217
The exhaust brake indicator light
illuminates when you switch the
exhaust brake on.
Fasten Seatbelt
E71880
Illuminates and a tone sounds
to remind you to fasten your
seatbelt.
High Beam
Illuminates when you switch on
the high beam headlamps. It
flashes when you use the
headlamp flasher.
Hydromax
E146190
If the light illuminates and
remains on when the key is in the
on position or the engine is
running, this indicates inadequate hydraulic
booster pressure or reserve pump system
failure. Stop the vehicle as soon as
possible and have your vehicle checked.
Low Fuel Level
Illuminates when the fuel level
is low or the fuel tank is nearly
empty. Refuel as soon as
possible.
Parking Brake Warning
E208810
Briefly illuminates when you
switch the ignition to the on
position, with the engine off. It
also illuminates when you apply the
parking brake. If the park brake lamp does
not illuminate at these times, seek
immediate service. Vehicles with the power
parking brake option: If the park brake
warning lamp begins to blink after setting
the parking brake, this may indicate a
failure in the parking brake system. Have
the system checked as soon as possible.
Driving extended distances with the
parking brake engaged can cause brake
failure and the risk of personal injury.
Parking Lamps
Illuminates when you switch the
low beam headlamps or the
parking lamps on.
67
Instrument Cluster

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
105
Fuel and Refueling

Biodiesel fuel is a chemically converted
product from renewable fuel sources, such
as vegetable oils, animal fats and waste
cooking greases.
To help achieve acceptable engine
performance and durability when using
biodiesel in your vehicle:
• Confirm the biodiesel content of the
fuel to be B20 (20% biodiesel) or less
• Only use biodiesel fuel of good quality
that complies with industry standards
• Follow the recommended service
maintenance intervals. See
Scheduled Maintenance (page 319).
• Do not store biodiesel fuel in the fuel
tank for more than 1 month
• Consider changing brands or reducing
biodiesel content if you have cold
temperature fuel gelling issues or a
frequent LOW FUEL PRESSURE
message appearing
• Do NOT use raw oils, fats or waste
cooking greases
Use of biodiesel in concentrations greater
than 20% may cause damage to your
vehicle, including engine and/or exhaust
after-treatment hardware (exhaust
catalyst and particulate filter) failures.
Concentrations greater than 20% can also
cause fuel filter restrictions that may result
in a lack of power or damage to fuel
system components, including fuel pump
and fuel injector failures.
SAE 5W-40 or SAE 15W-40 oil is
recommended for fuels with greater than
5% biodiesel (B5). Refer to the Special
operating conditions section under the
Schedule Maintenance chapter for more
information about oil change intervals and
other maintenance when operating on
biodiesel.Look for a label on the fuel pump to
confirm the amount of biodiesel contained
in a diesel fuel. Biodiesel content is often
indicated with the letter B followed by the
percent of biodiesel in the fuel. For
example, B20 indicates a fuel containing
20% biodiesel. Ask the service station
attendant to confirm the biodiesel content
of a diesel fuel if you do not see a label on
the fuel pump.
Biodiesel fuels degrade more easily than
diesel fuels not containing biodiesel and
should not be stored in the fuel tank for
more than 1 month. If you plan to park or
store your vehicle for more than 1 month,
then you should empty your vehicle fuel
tank of biodiesel fuel. You should fill the
tank with a pure petroleum-based diesel
fuel and run your vehicle for a minimum of
30 minutes.
Note:Degraded or oxidized biodiesel can
damage fuel system seals and plastics and
corrode steel parts.
During cold weather, if you have problems
operating on biodiesel, you may need to
use a diesel fuel with lower biodiesel
content, try another brand, or discontinue
the use of biodiesel.
Diesel Fuel Additives
It should not be necessary to add any
aftermarket additives to your fuel if you
use a high quality diesel fuel that conforms
to ASTM industry specifications.
Aftermarket additives can damage the fuel
injector system or engine.
Use Motorcraft® cetane booster or an
equivalent cetane booster additive if you
suspect fuel has low cetane. Use
Motorcraft® anti-gel & performance
improver or an equivalent additive if there
is fuel gelling.
108
Fuel and Refueling