tow FORD F-450 2021 Service Manual

•
Incorrect fuel for climatic conditions.
• Incorrect engine oil viscosity for
climactic conditions.
Note: Some vehicles have a lifetime fuel
filter that is integrated with the fuel tank.
Regular maintenance or replacement is not
needed.
Note: If these checks do not help you
correct the concern, have your vehicle
checked as soon as possible.
Noise Emissions Warranty,
Prohibited Tampering Acts and
Maintenance
On January 1, 1978, Federal regulation
became effective governing the noise
emission on trucks over 10,000 lb
(4,536 kg) Gross Vehicle Weight Rating
(GVWR). The preceding statements
concerning prohibited tampering acts and
maintenance, and the noise warranty
found in the Warranty Guide, are
applicable to complete chassis cabs over
10,000 lb (4,536 kg)
GVWR.
CATALYTIC CONVERTER WARNING:
Do not park, idle or
drive your vehicle on dry grass or other
dry ground cover. The emission system
heats up the engine compartment and
exhaust system, creating the risk of fire. WARNING:
The normal operating
temperature of the exhaust system is
very high. Never work around or attempt
to repair any part of the exhaust system
until it has cooled. Use special care when
working around the catalytic converter.
The catalytic converter heats up to a very
high temperature after only a short
period of engine operation and stays hot
after the engine is switched off. WARNING:
Exhaust leaks may
result in entry of harmful and potentially
lethal fumes into the passenger
compartment. If you smell exhaust
fumes inside your vehicle, have your
vehicle inspected immediately. Do not
drive if you smell exhaust fumes. WARNING: Do not allow people or
animals in truck beds that have
modifications, such as bed covers or
slide-in campers, when the engine is
running. Exhaust fumes are toxic. Failure
to follow this instruction could result in
personal injury or death.
Your vehicle has various emission control
components and a catalytic converter that
enables it to comply with applicable
exhaust emission standards.
To make sure that the catalytic converter
and other emission control components
continue to work properly:
• Do not crank the engine for more than
10 seconds at a time.
• Do not run the engine with a spark plug
lead disconnected.
• Do not push-start or tow-start your
vehicle. Use booster cables. See Jump
Starting the Vehicle
(page 327).
• Use only the specified fuel listed.
• Do not switch the ignition off when your
vehicle is moving.
• Avoid running out of fuel.
• Have the items listed in scheduled
maintenance information performed
according to the specified schedule.
Note: Your vehicle warranty does not cover
resulting component damage.
The scheduled maintenance items listed
in scheduled maintenance information are
essential to the life and performance of
your vehicle and to its emissions system.
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To return to the normal drive (D) position,
move the shift lever from manual (M) to
drive (D).
The transmission operates through the full
range of gears.
Forced downshifts
•
Allowed in drive (D) with the tow/haul
feature on or off.
• Press the accelerator to the floor.
• Allows transmission to select an
appropriate gear.
Understanding Your SelectShift
Automatic ™ TransmissionNote:
When pressing the button on the
gearshift lever, you can cycle through the
available drive modes. See Drive Control
(page 268).
Your vehicle has a SelectShift Automatic ™
transmission gearshift lever. The
SelectShift Automatic transmission gives
you the ability to change gears up or down
without a clutch. To prevent the engine from running at too
low an RPM, which may cause it to stall,
SelectShift still makes some downshifts
for you if it determines that you have not
downshifted in time. Although SelectShift
makes some downshifts for you, it still
allows you to downshift at any time if the
SelectShift determines that damage to
the engine cannot occur from over-revving.
SelectShift does not upshift, even if the
engine is approaching the RPM limit. Shift
it manually by pressing the + button.
Note:
Engine damage could occur if you
maintain excessive engine revving without
shifting.
The SelectShift Automatic transmission
feature has two modes:
• Progressive Range Selection.
• Manual (M).
Progressive Range Selection - PRS Progressive Range Selection gives you the
ability to lockout gears from the automatic
shifting range. This could provide you with
an improved driving experience, for
example, in slippery conditions or when
experiencing a steep slope.
With the gearshift lever in drive (D), press
the – button to active PRS. The instrument
cluster indicates the available and selected
gears.
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Upshifts when Accelerating (Recommended for Best Fuel Economy) 10-Speed
36 mph (58 km/h)
34 mph (55 km/h)
7 - 8
45 mph (72 km/h)
44 mph (71 km/h)
8 - 9
49 mph (79 km/h)
47 mph (76 km/h)
9 - 10
Automatic Transmission Adaptive
Learning
This feature's design is to increase
durability and provide consistent shift feel
over the life of your vehicle. A new vehicle
or transmission may have firm shifts, soft
shifts or both. This operation is normal and
does not affect function or durability of the
transmission. Over time, the adaptive
learning process fully updates transmission
operation. Additionally, whenever you
disconnect the battery or install a new
battery, the system must relearn the
strategy.
Neutral Idle with F350, F450, F550
and F600 Chassis Cab Vehicles
Your transmission could reduce the load
on the engine when the vehicle stops, and
the gear selector is in drive (D) to reduce
fuel consumption and emissions. The
transmission resumes operation when you
release the brake. This feature activates
when the transmission is sufficiently
warmed, and the vehicle is on a level slope.
Brake-Shift Interlock WARNING: When doing this
procedure, you need to take the
transmission out of park (P) which
means your vehicle can roll freely. To
avoid unwanted vehicle movement,
always fully apply the parking brake prior
to doing this procedure. Use wheels
chocks if appropriate. WARNING:
If the parking brake is
fully released, but the brake warning
lamp remains illuminated, the brakes
may not be working properly. Have your
vehicle checked as soon as possible.
Note: Do not drive your vehicle until you
verify that the brake lamps are working.
Your vehicle comes with brake-shift
interlock that prevents the gearshift lever
from moving from park (P) when you
switch the ignition on but have not pressed
the brake pedal.
If you cannot move the gearshift lever out
of the park (P) position when the ignition
is on and the brake pedal pressed, a
malfunction could have occurred. It is
possible that a fuse has blown, or your
vehicle ’s brake lamps are not operating
properly. See
Fuse Specification Chart
(page 339).
If you do not have a blown fuse and the
brake lamps are working properly, the
following procedure allows you to move
the gearshift lever from park (P):
1. Apply the parking brake. Switch the ignition key to 1 - 0, then remove the
key.
2. Move the steering column to the full down and full rearward position,
toward the driver seat.
3. Remove the gearshift lever boot.
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4. Place your fingers into the hole where
you removed the gearshift lever boot
and pull the top half of the shroud up
and forward to separate it from the
lower half of the shroud. There is a
hinge at the forward edge of the top
shroud. Roll the top half of the shroud
upward on the hinge point, then pull
straight rearward toward the driver
seat to remove.
5. Remove the top half of the shroud.
6. Remove the three fasteners under the column that secure the lower shroud
half to the column. 7. Pull the lock lever into the fully
unlocked position and remove the
lower shroud cover by pulling the lever
handle through the slot in the cover.
8. Apply the brake. Gently lift the override
disk and move the gearshift lever into
neutral (N). 9. Start your vehicle.
Perform steps 4 through 8 in reverse order
to get the shroud back together, making
sure to engage the hinge pivots between
the upper and lower halves of the shroud.
Keep slight pressure in the forward
direction as you rotate the halves together.
If Your Vehicle Gets Stuck in Mud
or Snow
If your vehicle is stuck in mud or snow, you
can rock it out by shifting between forward
and reverse gears, stopping between shifts
in a steady pattern. Press lightly on the
accelerator in each gear.
Note:
Do not rock your vehicle if the engine
is not at normal operating temperature or
damage to the transmission could occur.
Note: Do not rock your vehicle for more
than a minute or damage to the
transmission and tires could occur, or the
engine could overheat.
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POWER TAKE-OFF (IF EQUIPPED)
Note: Use of auxiliary equipment that
exceeds the maximum Power Take-Off
(PTO) load specified in our Truck Body
Builders Layout Book can adversely affect
the performance of the powertrain system.
Refer to the Body Builders Layout Book for
instructions about the appropriate
installation of additional equipment.
Auxiliary equipment called power take-off,
or PTO, is often added to the engine or
transmission to operate utility equipment.
Examples include a wheel-lift for tow
trucks, cranes, tools for construction or tire
service, and pumping fluids. PTO
applications draw auxiliary horsepower
from the powertrain, often while the
vehicle is stationary. In this condition, there
is limited cooling air flow through the
radiator and around the vehicle that
normally occurs when a vehicle is moving.
The aftermarket PTO system installer,
having the most knowledge of the final
application, is responsible for determining
whether additional chassis heat protection
or powertrain cooling is required, and
alerting the user to the safe and proper
operation.
Split Shaft Capability
(If Equipped)
Our Super Duty vehicles are approved for
use as a stationary, including split shaft
capability with 6.7L diesel only, or mobile
power source, within limits and operating
guidelines detailed in our Truck Body
Builders Layout Book. For additional
information, visit
www .f or dbb a s. c om .
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For 4WD vehicles
Pull the 4WD control knob toward you.
For 2WD vehicles
Turn the control to ON.
Once the indicator light
illuminates in the information
display, both rear wheel axle
shafts will be locked together providing
added traction.
If the indicator does not come on, or the
indicator turns off while driving, one of the
following has occurred:
• The vehicle speed is too high.
• The left and right rear wheel speed
difference is too high during an
engagement attempt. •
The system has malfunctioned and is
accompanied by a message in the
information display. See your
authorized Ford dealer for assistance.
• The vehicle is experiencing an anti-lock
brake activation.
Operating ELD With a Spare or
Mismatched Tires
On vehicles with an ELD, the size of the
spare tire can affect performance of the
system. If there is a significant difference
between the two rear tires, you may have
limited ELD functionality. If the electronic
locking differential has difficulty
disengaging, release the accelerator pedal
and turn the steering wheel in the opposite
direction when rolling. We recommend
engaging and disengaging the ELD at a
stop when you mount a spare on the rear
axle.
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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 by an authorized dealer. If
your vehicle has continuous vibration or
shudder in the steering wheel while braking,
have it checked by an authorized dealer.
Note: Brake dust may accumulate on the
wheels, even under normal driving
conditions. Some dust is inevitable as the
brakes wear and does not contribute to
brake noise.
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.
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. Shift 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.
Brake Assist
Brake assist detects when you brake
rapidly by measuring the rate at which you
press the brake pedal. It provides
maximum braking efficiency as long as you
press the pedal, and can reduce stopping
distances in critical situations. Anti-lock Brake System
This system helps you maintain steering
control during emergency stops by keeping
the brakes from locking. This lamp momentarily
illuminates when you switch the
ignition on. If the light does not
illuminate during start up, remains on or
flashes, the system may be disabled. Have
the system checked by an authorized
dealer. If the anti-lock brake system is
disabled, normal braking is still effective.
See Warning Lamps and Indicators
(page 105).
Note: Indicators vary depending on region. If the lamp remains illuminated
after you release the parking
brake, have the system checked
by an authorized dealer.
It also illuminates momentarily
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 by an authorized dealer.
Diesel Engine Exhaust Braking
(If
Equipped) WARNING:
Do not use tow/haul
when the road surface is slippery. Failure
to follow this instruction could result in
the loss of control of your vehicle. WARNING:
Do not use diesel
engine exhaust braking when the road
surface is slippery. Failure to follow this
instruction could result in the loss of
control of your vehicle.
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You can use this feature with tow/haul or
progressive range selection to provide
further increased engine braking. The
transmission automatically upshifts to
prevent the engine from entering the red
zone on the tachometer. See Automatic
Transmission (page 207).
HINTS ON DRIVING WITH
ANTI-LOCK BRAKES
The anti-lock brake system does not
eliminate the risks when:
• You drive too closely to the vehicle in
front of you.
• Your vehicle is hydroplaning.
• You take corners too fast.
• The road surface is poor.
Note: If the system activates, the brake
pedal could pulse and may travel further.
Maintain pressure on the brake pedal. You
may also hear a noise from the system. This
is normal.
PARKING BRAKE WARNING:
Always set the parking
brake fully and make sure the
transmission is placed in park (P). Failure
to set the parking brake and engage park
could result in vehicle roll-away, property
damage or bodily injury. Turn the ignition
to the lock position and remove the key
whenever you leave your vehicle.
Apply the parking brake whenever your
vehicle is parked. Press the pedal
downward to set the parking brake. The
brake warning lamp in the instrument
cluster will illuminate and remains
illuminated until the parking brake is
released. To release, pull the brake release lever
located at the lower left side of the
instrument panel.
If you are parking your vehicle on a grade
or with a trailer, press and hold the brake
pedal down, then set the parking brake.
There may be a little vehicle movement as
the parking brake sets to hold the vehicle's
weight. This is normal and should be no
reason for concern. If needed, press and
hold the service brake pedal down, then
try reapplying the parking brake. Chock the
wheels if required. If the parking brake
cannot hold the weight of the vehicle, the
parking brake may need to be serviced or
the vehicle may be overloaded.
HILL START ASSIST
WARNING:
The system does not
replace the parking brake. When you
leave your vehicle, always apply the
parking brake. WARNING:
You must remain in
your vehicle when the system turns on.
At all times, you are responsible for
controlling your vehicle, supervising the
system and intervening, if required.
Failure to take care may result in the loss
of control of your vehicle, serious
personal injury or death. WARNING:
The system will turn
off if a malfunction is apparent or if you
rev the engine excessively. Failure to take
care may result in the loss of control of
your vehicle, serious personal injury or
death.
The system makes it easier to pull away
when your vehicle is on a slope without the
need to use the parking brake.
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The coverage area is up to 6 ft (1.8 m) from
the rear bumper. The coverage area could
decrease at the outer corners of the
bumper.
The system detects certain objects while
the transmission is in reverse (R):
•
Your vehicle is moving toward a
stationary object at a speed of 3 mph
(5 km/h) or less.
• Your vehicle is not moving, but a
moving object is approaching the rear
of your vehicle at a speed of
3 mph
(5 km/h) or less.
• Your vehicle is moving at a speed of
less than 3 mph (5 km/h) and a moving
object is approaching the rear of your
vehicle at a speed of less than
3 mph
(5 km/h).
The system provides audio warnings only
when your vehicle is moving or when your
vehicle is stationary, and the detected
obstacle is less than
12 in (30 cm) away
from the bumper.
Obstacle Distance Indicator
The system provides obstacle distance
indication through the display screen. See
Rear View Camera
(page 235). REAR VIEW CAMERA (IF EQUIPPED) WARNING:
The rear view camera
system is a reverse aid supplement
device that still requires the driver to use
it in conjunction with the interior and
exterior mirrors for maximum coverage. WARNING:
Objects that are close
to either corner of the bumper or under
the bumper, might not be seen on the
screen due to the limited coverage of the
camera system. WARNING:
Reverse your vehicle
as slow as possible, higher speeds may
limit your reaction time to stop your
vehicle. WARNING:
Use caution when the
tailgate is ajar. If the tailgate is ajar, the
camera will be out of position and the
video image may be incorrect. All
guidelines disappear when the tailgate
is ajar. Some vehicles may not come
equipped with guidelines. WARNING:
Use caution when
turning camera features on or off when
the transmission is not in park (P). Make
sure your vehicle is not moving.
The rear view camera system displays
what is behind your vehicle when you shift
the transmission into reverse (R).
During operation, lines appear in the
display that represents the path of your
vehicle and proximity to objects behind it.
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The rear view camera is located on the
tailgate.
Using the Rear View Camera
System
The system uses three types of guides to
help you see what is behind your vehicle:
•
Active guidelines: Show the intended
path of your vehicle when reversing.
• Fixed guidelines: Show the actual path
your vehicle is moving while reversing
in a straight line. This can be helpful
when backing into a parking space or
aligning your vehicle with another
object behind you.
• Centerline: Helps align the center of
your vehicle with an object (for
example, a trailer).
Note: If the transmission is in reverse (R)
and the tailgate is ajar, no rear view camera
features are displayed.
Note: If the image does not turn off while
the transmission is not in reverse (R) and
you are driving over a speed of 5 mph
(8 km/h), have the system inspected by an
authorized dealer. Note:
When towing, the camera only sees
what is being towed behind your vehicle.
This might not provide adequate coverage
as it usually provides in normal operation
and some objects might not be seen. In
some vehicles, the guidelines may disappear
once the trailer tow connector is engaged.
The camera may not operate correctly
under the following conditions:
• Nighttime or dark areas if the reverse
lamps are not operating.
• Mud, water or debris obstructs the
camera's view. Clean the lens with a
soft, lint-free cloth and non-abrasive
cleaner.
• The camera is misaligned due to
damage to the rear of your vehicle.
Camera Guidelines
Note: Active guidelines and fixed guidelines
are only available when the transmission is
in reverse (R).
Note: The centerline is only available if
Active or Fixed guidelines are on.
Note: Some vehicles may not come
equipped with guidelines.
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