2023 FORD F650/750 stop start

• Make sure the heater, heater cord and
extension cord are firmly connected.
• Check for heat anywhere in the
electrical hookup once the system has
been operating for approximately 30
minutes.
• Make sure the system is unplugged and
properly stowed before starting and
driving your vehicle. Make sure the
protective cover seals the prongs of the
block heater cord plug when not in use.
• Make sure the heater system is
checked for proper operation before
winter.
Using the Engine Block Heater
Make sure the receptacle terminals are
clean and dry prior to use. Clean them with
a dry cloth if necessary.
The heater uses 0.4 to 1.0 kilowatt-hours
of energy per hour of use. The system does
not have a thermostat. It achieves
maximum temperature after
approximately three hours of operation.
Using the heater longer than three hours
does not improve system performance and
unnecessarily uses electricity.
104
Starting and Stopping the Engine

RUNNING OUT OF FUEL -
DIESEL
Avoid running out of fuel. This allows air to
enter the fuel system and may make it
difficult to restart your vehicle.
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 102).
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
WARNING: Fuel vapor burns
violently and a fuel fire can cause severe
injuries.
WARNING: Read and follow all the
instructions on the pump island.
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: Stay outside your
vehicle and do not leave the fuel pump
unattended when refueling your vehicle.
WARNING: Keep children away
from the fuel pump. Never let children
pump fuel.
110
Fuel and Refueling

1. When your vehicle has stopped, shift
into neutral (N) or park (P).
2. Apply the parking brake and switch the
ignition off.
3. Turn the fuel filler cap
counterclockwise and remove it.
4. Refuel your vehicle as required.
5. Replace the fuel filler cap, turn it
clockwise until you feel a strong
resistance.
If the fuel cap warning lamp or a warning
message appears in the instrument cluster,
you may not have installed the fuel filler
cap correctly.
If the fuel cap warning lamp remains on,
at the next opportunity, safely pull off of
the road, remove the fuel filler cap, align
the cap properly and reinstall it. The check
fuel cap warning lamp or warning message
may not reset immediately. It may take
several driving cycles for the indicators to
turn off. A driving cycle consists of an
engine start-up (after four or more hours
with the engine off) followed by normal
city and highway driving.
FUEL CONSUMPTION
The advertised capacity is the maximum
amount of fuel that you can add to the fuel
tank after running out of fuel. Included in
the advertised capacity is an empty
reserve. The empty reserve is an
unspecified amount of fuel that remains
in the fuel tank when the fuel gauge
indicates empty.
Note:The amount of fuel in the empty
reserve varies and should not be relied upon
to increase driving range.
Filling the Fuel Tank
For consistent results when refueling:
• Turn the ignition off before fueling; an
inaccurate reading results if the engine
is left running.
• Use the same fill rate
(low-medium-high) each time the tank
is filled.
• Allow no more than one automatic
shut-off when refueling.
Results are most accurate when the filling
method is consistent.
Calculating Fuel Economy
Do not measure fuel economy during the
first 1,000 mi (1,600 km) of driving (this is
your engine’s break-in period). A more
accurate measurement is obtained after
2,000 mi (3,200 km) to 3,000 mi
(4,800 km). Also, fuel expense, frequency
of fill ups or fuel gauge readings are not
accurate ways to measure fuel economy.
1. Fill the fuel tank completely and record
the initial odometer reading.
2. Each time you fill the fuel tank, record
the amount of fuel added.
3. After at least three fill ups, fill the fuel
tank and record the current odometer
reading.
4. Subtract your initial odometer reading
from the current odometer reading.
To calculate L/100 km (liters per 100
kilometers) fuel consumption, multiply the
liters used by 100, then divide by kilometers
traveled. To calculate MPG (miles per
gallon) fuel consumption, divide miles
traveled by gallons used.
113
Fuel and Refueling

Your vehicle may not pass the I/M test if
the service engine soon indicator is on or
not working properly (bulb is burned out),
or if the OBD-II system has determined
that some of the emission control systems
have not been properly checked. In this
case, the vehicle is not ready for I/M
testing.
If the vehicle’s engine or transmission has
just been serviced, or the battery has
recently run down or been replaced, the
OBD-II system may indicate that the
vehicle is not ready for I/M testing. To
determine if the vehicle is ready for I/M
testing, turn the ignition key to the on
position for 15 seconds without cranking
the engine. If the service engine soon
indicator blinks eight times, it means that
the vehicle is not ready for I/M testing; if
the service engine soon indicator stays on
solid, it means that your vehicle is ready
for I/M testing.
The OBD-II system checks the emission
control system during normal driving. A
complete check may take several days.
If the vehicle is not ready for I/M testing,
you can perform the following driving cycle
consisting of mixed city and highway
driving:
1. 15 minutes of steady driving on an
expressway or highway followed by 20
minutes of stop-and-go driving with at
least four 30-second idle periods.
2. Allow your vehicle to sit for at least
eight hours with the ignition off. Then,
start the vehicle and complete the
above driving cycle. The vehicle must
warm up to its normal operating
temperature. Once started, do not turn
off the vehicle until the above driving
cycle is complete.
If the vehicle is still not ready for I/M
testing, you need to repeat the above
driving cycle.SELECTIVE CATALYTIC
REDUCTANT SYSTEM - DIESEL
Your vehicle may have a selective catalytic
reduction system. This system helps
reduce emission levels of oxides of
nitrogen from the exhaust system. The
system automatically injects diesel
exhaust fluid into the exhaust system to
enable correct selective catalytic reduction
system function.
Note:Selective catalytic reduction systems
are not fitted to vehicles in markets where
only high-sulfur diesel fuel is available.
Diesel Exhaust Fluid Level
In order for the system to operate correctly
you must maintain the diesel exhaust fluid
level.
The system has a sensor to monitor fluid
level and quality/concentration. A warning
message appears in the information
display when the diesel exhaust fluid level
is low. If a warning message appears, refill
the diesel exhaust fluid tank as soon as
possible. See Information Messages
(page 74).
Filling the Diesel Exhaust Fluid
Tank
WARNING: Keep diesel exhaust
fluid out of reach of children. Avoid
contact with skin, eyes or clothing. In
case of contact with your eyes, flush
immediately with water and get prompt
medical attention. In case of contact
with your skin, clean immediately with
soap and water. If you swallow any
diesel exhaust fluid, drink plenty of
water, call a physician immediately.
118
Engine Emission Control

AUTOMATIC TRANSMISSION
WARNING: Apply the parking
brake, shift into park (P), switch the
ignition off and remove the key before
you leave your vehicle. Failure to follow
this instruction could result in personal
injury or death.
WARNING: Do not apply the brake
pedal and accelerator pedal
simultaneously. Applying both pedals
simultaneously for more than a few
seconds will limit engine performance,
which may result in difficulty maintaining
speed in traffic and could lead to serious
injury.
Understanding the Shift Positions
of a 6–Speed Automatic
Transmission
E163183
E307627E307627
PRNDM21
Putting your vehicle in or out of gear:
1. Fully press the brake pedal.2. Move the gearshift lever into the
preferred gear.
3. When you finish driving, come to a
complete stop.
4. Move the gearshift lever and securely
latch it in park (P) or neutral (N).
The instrument cluster displays the current
gear.
Park (P)
If your transmission has a park (P) position,
this position locks the transmission and
prevents the rear wheels from turning.
Reverse (R)
With the gearshift lever in reverse (R), your
vehicle moves backward. Always come to
a complete stop before shifting into and
out of reverse (R).
Neutral (N)
With the gearshift lever in neutral (N), you
can start your vehicle and it is free to roll.
Hold the brake pedal down when in this
position.
Drive (D)
Drive (D) is the normal driving position for
the best fuel economy. The overdrive
function allows automatic upshifts and
downshifts through gears one through six.
Manual (M)
With the gearshift lever in manual (M), the
driver can change gears up or down as
preferred. By moving the gearshift lever
from drive (D) to manual (M), you now
have control of selecting the gear you
prefer using the buttons on the shift lever.
See Understanding Your SelectShift
Automatic™ Transmission later in this
section.
128
Transmission

WHAT IS THE PNEUMATIC
LOCKING DIFFERENTIAL
The pneumatic locking differential can lock
or unlock the differential when the vehicle
is moving or stopped. The differential lock
provides full power to both wheels when
extra traction is required.
HOW DOES THE PNEUMATIC
LOCKING DIFFERENTIAL
WORK
If your vehicle is equipped with a
pneumatic locking differential:
• Power is transmitted to the opposite
wheel should one of the wheels begin
to slip.
• Raise both wheels off the ground if it
becomes necessary to operate one
wheel with the vehicle stationary.
The differential can be locked or unlocked
when the vehicle is moving at a constant
speed of less than 25 mph (40 km/h) and
while the wheels are not slipping. Do not
lock the differential when the vehicle is
traveling down steep grades and traction
is minimal.
Note:Do not use the differential lock at
vehicle speeds above 25 mph (40 km/h).
When the differential is locked, the
vehicle’s turning radius increases causing
understeer.
The differential lock and differential lock
light automatically disengage at speeds
above 25 mph (40 km/h). The differential
lock remains off until the vehicle is
restarted or the differential lock switch is
turned off then back on.
PNEUMATIC LOCKING
DIFFERENTIAL PRECAUTIONS
WARNING: Exceeding any vehicle
weight rating can adversely affect the
performance and handling of your
vehicle, cause vehicle damage and can
result in the loss of control of your
vehicle, serious personal injury or death.
WARNING: Failure to raise all drive
wheels with this type of differential could
cause the vehicle to move unexpectedly,
resulting in property damage, personal
injury or death.
WARNING: Sudden acceleration
on slippery surfaces could cause the
wheels to spin, the vehicle to turn
sideways on a crowned road surface or
in a turn, possibly resulting in loss of
vehicle control and personal injury.
SWITCHING THE PNEUMATIC
LOCKING DIFFERENTIAL ON
AND OFF
Press and hold the button on the dash to
turn the system on or off.
E366571E366571E366E366E366E366E366E36666E366E366E366EE36611571571571571557171571571571
135
Pneumatic Locking Differential

GENERAL INFORMATION
Note: Occasional brake noise is normal. If
a metal-to-metal, continuous grinding or
continuous squeal sound is present, the
brake linings may be worn-out. Have the
system checked as soon as possible. If the
vehicle has continuous vibration or shudder
in the steering wheel while braking, have the
system checked as soon as possible.
All standard equipment brakes are
self-adjusting. Automatic adjustment,
when required, occurs whenever you apply
and release the brakes during forward or
reverse operation.
Know the required stopping distances for
all driving conditions you may encounter.
For longer brake lining life, take full
advantage of engine braking power when
coming to a stop.
Wet brakes result in reduced braking
efficiency. Gently press the brake pedal a
few times when driving from a car wash or
standing water to dry the brakes.
If the brakes do not grip well:
• Check brake adjustment.
• Check the brake linings for excessive
wear.
• Check the system air pressure on
vehicles with air brakes.
• Let the brakes cool if you have been
using them excessively, as in mountain
driving or after several fast, high-speed
stops.
• If you have been driving through deep
water, gently apply the brakes several
times while your vehicle is moving
slowly.
Brake Over Accelerator
In the event the accelerator pedal
becomes stuck or entrapped, apply steady
and firm pressure to the brake pedal to
slow the vehicle and reduce engine power.
If you experience this condition, apply the
brakes and bring your vehicle to a safe
stop. Move the transmission to park (P),
switch the engine off and apply the parking
brake. Inspect the accelerator pedal for
any interference. If none are found and the
condition persists, have your vehicle towed
to the nearest authorized dealer
Anti-lock Brake System
This system helps you maintain steering
control during emergency stops by keeping
the brakes from locking.
If the light does not illuminate
during start up, remains on or
flashes, the system may be
disabled. It also momentarily illuminates
when you switch the ignition on to confirm
the lamp is functional. If it does not
illuminate when you switch the ignition on,
or begins to flash at any time, have the
system checked.
E210335
If you connect a PLC trailer with
the ignition on, the trailer ABS
light also illuminates. If the light
fails to illuminate, if it remains on after you
start the vehicle or continues to flash, have
the system serviced immediately.
See Warning Lamps and Indicators
(page 66).
137
Brakes

Vehicles with Automatic Transmission
You cannot turn the system on or off.
When you switch the ignition on, the
system automatically turns on.
AIR BRAKES (IF EQUIPPED)
WARNING: Do not drive or continue
to drive if the low air pressure buzzer is
sounding or the brake warning light is lit.
These warnings indicate that air pressure
is not to normal operating level.
Continued use of the vehicle could result
in loss of braking ability.
WARNING: Avoid repeated light
application of the brake pedal. This
depletes air pressure faster and could
result in loss of braking capability.
WARNING: Do not move the
vehicle when the air pressure is
insufficient because the brake system
may be inoperative.
After starting the engine, give the air
compressor time to build up the air
pressure to 60 psi (414 kPa) before moving
your vehicle.
E210336
Periodically check the air pressure gauge
while driving. Pressure should range
between approximately 100 psi (690 kPa)
to 130 psi (896 kPa). The air compressor
governor cut-in and cutout pressure
settings are set at the factory and are not
adjustable.
E206772
When air pressure is insufficient
(below 60 psi (414 kPa)), a
warning light illuminates and a
buzzer sounds when the ignition is in the
on position. This may happen because
excessive brake applications are depleting
the system air pressure. If this condition
occurs, stop driving your vehicle until the
compressor has fully recharged the air
system.
Select a gear ratio to help slow your vehicle
before descending grades. Supplementing
with brakes, as required, help to safely slow
the vehicle and avoids overspeeding the
engine.
Air Chamber Stroke Indication
Air chamber push rods have orange stroke
indicator markers that warn when the
braking system requires adjustment or
repair. The painted orange indicator is on
the air chamber push rod at the slack
adjuster stroke dimension that requires
service when visible during brake
application.
A qualified service technician should
perform air brake inspection and
adjustment or repairs keeping to the
instructions in the service manual.
142
Brakes