Ford F-650 / 750 (2023 year). Manual in english — page 8

Remove the diesel exhaust fluid
container cap. Place the spout onto the
container and tighten until you feel a
strong resistance.

2. Remove the diesel exhaust fluid tank

filler cap.

3. Insert the spout into the filler neck until

the seal on the spout seats onto the
filler neck. Pour the fluid into the tank.
When the tank is full the fluid stops. In
case of direct fill tank, the spout does
not seal against the fill tank interface
and does not stop the flowing
automatically.

4. Return the container to the vertical

position slightly below the diesel
exhaust fluid filler neck. Allow any fluid
remaining in the spout to drain back
into the container.

5. Remove the spout from the diesel

exhaust fluid filler neck. Replace the
diesel exhaust fluid tank cap.

6. Remove the spout from the diesel

exhaust fluid container and replace the
cap.

Note:

If there is diesel exhaust fluid left in

the container retain it for later use. The
spout is reusable. Wash the spout with
clean water prior to storage. Do not use the
diesel exhaust fluid spout with any other
fluid.

Filling the Diesel Exhaust Fluid Tank in
Cold Climates

Diesel exhaust fluid freezes if the ambient
temperature is below 12°F (-11°C). Your
vehicle has a preheating system which
allows diesel exhaust fluid to operate
below 12°F (-11°C). If you do not use your
vehicle for an extended period when the
ambient temperature is below 12°F (-11°C),
the fluid in the tank freezes. If the tank is
overfilled and the fluid freezes it may
damage the tank. This is not covered by
the vehicle warranty.

Note:

If the diesel exhaust fluid tank is

frozen, it may not recognize when the tank
is refilled. The diesel exhaust fluid level
updates once the tank thaws out.

Diesel Exhaust Fluid Warning
Messages and Vehicle Operations

WARNING:

Diesel exhaust fluid

must be refilled when low or replaced
when contaminated or your vehicle
speed becomes limited to 50 mph
(80 km/h). In these conditions, drive with
caution and refill diesel exhaust fluid
immediately. If the diesel exhaust fluid
becomes empty or contaminated and
fluid is not replaced, your vehicle
becomes limited to engine idle only once
stopped. In these conditions, be cautious
where you stop your vehicle because you
may not be able to drive long distances
or maintain highway speeds until you
refill or replace the diesel exhaust fluid.

Note:

Drain and replace diluted diesel

exhaust fluid.

WARNING:

Tampering with or

disabling the selective catalytic
reduction system results in severe
vehicle performance limitation including
eventual speed limiting to 5 mph
(8 km/h).

A systems check displays messages
indicating the amount of diesel exhaust
fluid available or displays a warning
message indicating the approximate
distance remaining as the fluid in the diesel
exhaust fluid tank nears empty. See

Information Messages

(page 74).

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Engine Emission Control

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As the diesel exhaust fluid level
nears empty, the warning
symbol displays and a series of

tones and messages starting at 500 mi
(800 km) remaining before diesel exhaust
fluid is depleted. The warning symbol and
messages continue until you refill the
diesel exhaust fluid tank.

Continued driving without refilling results
in the following actions as required by the
California Air Resources Board (CARB) and
the U.S. Environmental Protection Agency
(EPA):

•

Within a preset distance to empty,
speed is limited upon vehicle restart.
Prior to this occurring a message
appears in the information display.

•

Further vehicle operation without
refilling the diesel exhaust fluid tank
causes the engine to enter an idle-only
condition. This only occurs upon vehicle
refueling or at an extended idle. A
message indicates the required actions
to resume normal operation. It is
required to add a minimum of 1.0 gal
(3.8 L) of diesel exhaust fluid to the
tank to exit the idle-only condition, but
your vehicle is still in the speed-limiting
mode until you refill the tank
completely.

Note:

For either vehicle speed limiting or

idle-only condition, normal vehicle operation
resumes when you refill the diesel exhaust
fluid tank.

Note:

When filling the diesel exhaust fluid

tank from empty, there may be a short delay
before detecting the increased level of fluid.
The increased level detection must occur
before your vehicle returns to full power.

Diesel Exhaust Fluid Guidelines
and Information

•

Use only diesel exhaust fluid that
carries the American Petroleum
Institute (API) certified diesel exhaust
fluid trademark or ISO 22241.

•

Do not put diesel exhaust fluid in the
diesel fuel tank. If this happens, do not
switch the ignition on. Drain the fuel
tank as soon as possible.

•

Do not overfill the diesel exhaust fluid
tank.

•

Diesel exhaust fluid is corrosive.

•

Do not reuse the diesel exhaust fluid
container once it is emptied.

•

Avoid spilling diesel exhaust fluid on
painted surfaces, carpeting or plastic
components. Immediately wipe away
any diesel exhaust fluid that has spilled
with a damp cloth and water. If it has
already crystallized, use warm water
and a sponge.

•

Store diesel exhaust fluid out of direct
sunlight and in temperatures between
23°F (-5°C) and 68°F (20°C).

•

Diesel exhaust fluid freezes below 12°F
(-11°C).

•

Do not store the diesel exhaust fluid
bottle in your vehicle. If it leaks it could
damage interior components or release
an ammonia odor inside your vehicle.

•

Diesel exhaust fluid is a
non-flammable, non-toxic, colorless
and water-soluble liquid.

•

The system has a diesel exhaust fluid
quality sensor. Dilution of diesel
exhaust fluid or use of any other liquid
in the selective catalytic reduction
system leads to a diesel exhaust fluid
system fault, eventually leading to the
vehicle only operating in idle-only
mode.

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Engine Emission Control

•

Do not dilute diesel exhaust fluid with
water or any other liquid.

•

An ammonia odor may be smelled
when the cap is removed or during
refill. Refill diesel exhaust fluid in a well
ventilated area.

Typical Diesel Exhaust Fluid Usage
When Using the Power Take Off (PTO)

Continuous PTO use—Minimal PTO use

0–7,800 mi (0–12,550 km)

Contaminated Diesel Exhaust
Fluid or Inoperative Selective
Catalytic Reduction System

Selective catalytic reduction systems are
sensitive to contamination of the diesel
exhaust fluid. Maintaining the purity of the
fluid is important to avoid system
malfunctions. Do not add fuel or any
additive to the diesel exhaust fluid tank. If
you remove or drain the diesel exhaust fluid
tank, do not use the same fluid to refill the
tank. The system has a sensor to monitor
fluid quality.

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A warning lamp illuminates and
a message appears in the
information display if the system

becomes contaminated or inoperative.

Continued driving without replacing diesel
exhaust fluid or having the selective
catalytic reduction system repaired results
in the following actions as required by the
California Air Resources Board (CARB) and
U.S. Environmental Protection Agency
(EPA):

•

Within a preset distance to empty,
speed is limited upon vehicle restart.
Prior to this occurring a message
appears in the information display.

•

Further vehicle operation without
replacing contaminated diesel exhaust
fluid causes the engine to enter an
idle-only condition. This only occurs
upon vehicle refueling, vehicle idling in
park for 1 hour, or engine shutdown for
10 minutes or more and is indicated by
a message in the information display
indicating the required actions to
resume normal operation.

Note:

For vehicle speed limiting or idle-only

condition, normal vehicle operation resumes
when you repair the contaminated system.
To service a contaminated or inoperative
system, see an authorized dealer.

DIESEL PARTICULATE FILTER

(IF EQUIPPED)

Your vehicle has a diesel particulate filter.
The diesel particulate filter is an inline filter
in the exhaust system that reduces carbon
emissions by trapping exhaust particles
before they reach the tailpipe. The diesel
particulate filter looks similar to a
traditional exhaust catalyst, except larger,
and is part of the exhaust system under
your vehicle. The filter couples to a diesel
oxidation catalyst that reduces the amount
of harmful exhaust emitted from the
tailpipe. As soot gathers in the system, it
begins to restrict the filter. Periodically, you
need to clean the soot that gathers inside
the filter. You can clean the soot in two
different ways, passive regeneration and

122

Engine Emission Control

active regeneration. Both methods occur
automatically and require no actions from
the driver. During either one of these
regeneration methods, you may notice a
change in exhaust tone. At certain times,
various messages related to the diesel
particulate filter appear in the information
displays.

Oxidation Catalytic Converter and
Diesel Particulate Filter System

(If

Equipped)

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 diesel oxidation
catalytic converter or the diesel
particulate filter. The diesel oxidation
catalytic converter and the diesel
particulate filter heat up to very high
temperatures after only a short period
of engine operation and remain hot after
you switch the engine off.

Diesel Particulate Filter Maintenance

You must properly maintain your vehicle's
diesel particulate filter in order for it to
function properly.

Do not disregard maintenance messages
that appear in the information display.
Failure to follow the instructions of an
information message may degrade vehicle
performance and could lead to engine
damage that may not be covered by the
vehicle Warranty.

Failure to perform active or operator
commanded regeneration when instructed
could result in a clogged diesel particulate
filter. If the diesel particulate filter fills
beyond the regeneration threshold, your
vehicle disables the ability for active and
operator commanded regeneration. This
could result in irreversible damage to the
diesel particulate filter requiring
replacement that may not be covered by
the vehicle Warranty.

Passive Regeneration

In passive regeneration, the exhaust
system temperature and constituents
automatically clean the filter by oxidizing
the soot. Cleaning automatically occurs
during normal vehicle operating conditions
due to driving patterns.

Active Regeneration

Once the diesel particulate filter is full of
exhaust particles, the engine control
module commands the exhaust system to
clean the filter through active regeneration.
Active regeneration requires the engine
computer to raise the exhaust temperature
to eliminate the particles. During cleaning,
the particles convert to harmless gasses.
Once cleaned the diesel particulate filter
continues trapping exhaust particles.

The regeneration process operates more
efficiently when you drive your vehicle at
a constant speed above 30 mph
(48 km/h) and at a steady engine speed
for approximately 20 minutes. The
frequency and duration of regeneration
fluctuates by how you drive your vehicle,
outside air temperature and altitude. For
most driving, regeneration frequency varies
from 100–500 mi (160–805 km) between
occurrences and each occurrence lasts
9–35 minutes. You can usually reduce the
duration of regeneration if you maintain a
constant speed above 30 mph (48 km/h).

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Engine Emission Control

When the engine control module detects
that the diesel particulate filter is nearly
full of particulates and you are not
operating your vehicle in a manner to allow
effective automatic regeneration,
messages appear in the information
display as a reminder for you to drive your
vehicle in order to clean the diesel
particulate filter. If you drive your vehicle
in a manner to allow effective automatic
regeneration, the information display
shows a cleaning exhaust filter message,
which is the normal regeneration process.
You can also choose operator commanded
regeneration to clean the exhaust system
at this point. See

Information Messages

(page 74).

If you are not able to drive in a manner that
allows effective automatic active
regeneration or you choose to perform
regeneration of the diesel particulate filter
while at idle, then operator commanded
regeneration would need to be performed.

Operator Commanded Regeneration
(If Equipped)

If your vehicle is operated with significant
stationary operation, low speed drive
cycles less than 25 mph (40 km/h), short
drive cycles, a drive time is less than 10 -
15 minutes or the vehicle does not fully
warm up, passive and active regeneration
may not sufficiently clean the diesel
particulate filter system. Operator
commanded regeneration allows you to
manually start regeneration of the diesel
particulate filter at idle to clean the filter
only when the diesel particulate filter is full
(100%). If you are not sure whether your
vehicle has this feature, contact an
authorized dealer.

When to Carry Out Operator Commanded
Regeneration

You can use the operator commanded
regeneration feature when a message
appears in the information display only.
When viewing the Exhaust Filter Status
message - Exhaust Filter XX% and the
diesel particulate filter message indicates
FULL, and you are not able to drive in a
manner that allows effective automatic
active regeneration, or if you choose to
manually start the regeneration of the
diesel particulate filter manually while the
vehicle is idle. See

Information

Messages

(page 74).

Operator Commanded Regeneration
Precautions and Safe Exhaust Position

WARNING:

Do not park or idle your

vehicle over dry leaves, dry grass or other
combustible materials. The regeneration
process creates very high exhaust gas
temperatures and the exhaust will
radiate a considerable amount of heat
during and after regeneration and after
you have switched the engine off. This is
a potential fire hazard.

WARNING:

Stay clear of the

exhaust tailpipe during regeneration. Hot
exhaust gases can burn you badly.

Make sure that the louvers located at the
tip of the exhaust are clear of any
obstructions as they are used to introduce
fresh air into the tailpipe to cool the
exhaust gases as they leave the exhaust
system.

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Engine Emission Control

Before you start operator commanded
regeneration, do the following:

•

Shift into park (P) or if you have an
RNDM selector shift into neutral (N)
and apply the parking and or air brake,
on stable, level ground.

•

Park your vehicle outside of any
structure.

•

Park your vehicle 10–15 ft (3–5 m)
away from any obstructions and away
from materials that can easily combust
or melt, for example paper, leaves,
petroleum products, fuels, plastics and
other dry organic material.

•

Make sure there is a minimum of 1/8
tank of fuel.

•

Make sure all fluids are at proper levels.

How to Start Operator Commanded
Regeneration

WARNING:

Stay clear of the

exhaust tailpipe during regeneration. Hot
exhaust gases can burn you badly.

Note:

You cannot use the operator

commanded regeneration until the diesel
particulate filter load percentage has
reached 100%. The diesel particulate filter
load percentage fluctuates up and down
when driving your vehicle due to active and
passive regenerations.

Note:

During the use of operator

commanded regeneration, you may observe
a light amount of white smoke. This is
normal.

You may not be able to use
operator commanded
regeneration if the service engine

soon warning lamp appears in the
information display

Information Display Procedure

Start your vehicle engine and when it has
reached the normal operating temperature,
arrow through the display to get to the
Diesel Particulate Filter Status on the
Truck Info tab. Exhaust Filter XX%/FULL
displays. Operator commanded
regeneration can only be initiated when
FULL See

Information Display Control

(page 52). If a message advising that the
exhaust filter is full appears in the
information display, press and hold the OK
button to initiate Exhaust Cleaning. If
successful, a second prompt appears
regarding exhaust position required to
initiate operator commanded regeneration.
Be sure to understand each prompt. If you
are not sure what is being asked by each
prompt, contact an authorized dealer. If
the exhaust system meets the position
requirements then press and hold the OK
button to fully activate the Operator
Commanded Regeneration. The display
confirms the operation has started and
when it has finished.

You can also drive to clean the filter.

When the system is at the point
of oversaturation, the service
engine warning lamp illuminates

and a message appears in the information
display. You cannot initiate filter cleaning.
You must have your vehicle checked as
soon as possible.

Once operator commanded regeneration
starts, engine speed increases to
approximately 1600 rpm and the cooling
fan speed increases. You will hear a
change in audible sound due to engine
speed and cooling fan speed increases.

It is not necessary to open the hood on the
engine compartment. Once operator
commanded regeneration completes, the
engine speed returns to normal idling. The
exhaust system remains very hot for
several minutes even after regeneration is

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Engine Emission Control

complete. Do not reposition the vehicle
over materials that could burn until the
exhaust system has had sufficient time to
cool. Depending on the amount of soot
collected by the diesel particulate filter,
ambient temperature and altitude,
operator commanded regeneration lasts
approximately 30 minutes.

Operator Commanded Regeneration
with Automatic Regeneration Control
(If Equipped)

If your vehicle is operated with significant
stationary operation, low speed drive
cycles less than 25 mph (40 km/h), short
drive cycles, drive time less than 15 minutes
or the vehicle does not fully warm up,
passive and active regeneration may not
sufficiently clean the diesel particulate
filter system. You can switch off automatic
regeneration until better driving conditions
are available, for example steady high
speed driving. You can then switch
automatic regeneration back on to clean
the diesel particulate filter.

Switching Automatic Regeneration
Control On and Off

To switch operator commanded
regeneration on and off, use the
information display control on the steering
wheel. See

Information Display Control

(page 52). Scroll through the Settings tab
to ensure there is a check in the box next
to Auto Regeneration, this means it is
active. To deactivate Auto Regeneration,
uncheck the box. A message appears “Auto
Exhaust Cleaning Off” along with an icon
indicating that Auto Exhaust Cleaning is
disabled. The icon stays illuminated until
you switch Auto Exhaust Cleaning back on
by checking the box.

How to Interrupt or Cancel Operator
Commanded Regeneration

If you need to cancel the operator
commanded regeneration, pressing the
brake, accelerator or switching the engine
off stops the procedure. Depending on the
amount of time you allowed the operator
commanded regeneration to operate, soot
may not have had sufficient time to be fully
eliminated, but the exhaust system and
exhaust gas may still be hot. If you shut
your vehicle off during operator
commanded regeneration, you may notice
turbo flutter. This is a normal consequence
caused by shutting off a diesel engine
during boosted operation and is considered
normal.

Filter Service and Maintenance

Over time, a slight amount of ash builds
up in the diesel particulate filter, which is
not removed during the regeneration
process. The filter may need to be replaced
with a new or remanufactured part at
approximately 250,000 mi (400,000 km).
Actual mileage varies depending on engine
and vehicle operating conditions.

If filter service is required, the
engine control system warning
lamp illuminates in the

information display.

If there are any issues with the
diesel particulate filter system,
the engine control system
warning lamp and a service
engine soon warning lamp
illuminate to inform you that

your vehicle requires service. Have your
vehicle checked as soon as possible.

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Engine Emission Control

Resonator and Tailpipe Assembly
Maintenance

Aftermarket devices or modifications to
the exhaust system may reduce the
effectiveness of the exhaust system as
well as cause damage to the exhaust
system or engine. This may also degrade
vehicle performance and could lead to
engine damage that may not be covered
by the vehicle Warranty.

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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

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E307627

P R N D M 2 1

Putting your vehicle in or out of gear:

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

To return to normal drive (D) position,
move the shift lever back from manual (M)
to drive (D).

The transmission operates in gears one
through six.

Second (2)

The transmission operates in second (2)
gear only. Use second (2) gear to just start
on slippery roads.

First (1)

•

The transmission operates in first (1)
gear only.

•

Provides maximum engine braking.

•

Allows upshifts by moving gearshift
lever.

•

Does not downshift into first (1) gear
at high speeds; allows for first (1) gear
when vehicle reaches slower speeds.

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.

Tow/Haul Mode

E161509

To activate tow/haul, press the
button on the gearshift lever
once. The TOW HAUL indicator

illuminates in the instrument cluster.

The tow/haul feature:

•

Delays upshifts to reduce the frequency
of transmission shifting.

•

Provides engine braking in all forward
gears, which slows your vehicle and
assists you in controlling your vehicle
when descending a grade.

•

Depending on driving and load
conditions, could downshift the
transmission to slow your vehicle and
help control your vehicle speed when
descending a hill, without pressing the
accelerator pedal. Tapping the brake
pedal downshifts the transmission to
provide additional braking, only if the
downshift does not cause an engine
overspeed condition.

The tow/haul feature improves
transmission operation when towing a
trailer or a heavy load. All transmission
gear ranges are available when using
tow/haul.

Note:

Under certain conditions, the

automatic tow/haul feature engages, and
the TOW HAUL indicator illuminates
without pressing the tow/haul button.

To deactivate the tow/haul feature and
return to normal driving mode, press the
button on the gearshift lever twice. The
TOW HAUL indicator turns off. Tow/haul
also deactivates when you power down
your vehicle.

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.

129

Transmission

Understanding Your SelectShift™
Automatic Transmission

Your vehicle has a SelectShift automatic
transmission gearshift lever. SelectShift
automatic transmission gives you the
ability to change gears up or down, without
a clutch.

E318028

Use the buttons on the shifter to lock or
unlock gears and manually select gears.
Press the (+) button to upshift or the (–)
button to downshift.

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With the gearshift lever in drive (D), press
the (–) button to activate SelectShift. The
instrument cluster indicates the available
and selected gears.

All available gears display with the current
gear indicated. Press the (–) button again
to lock out gears beginning with the highest
gear. For example, press the (–) button
twice to lock out 6th and 5th gears. Only
the available gears display, and the
transmission shifts between the available
gears. Press the (+) button to unlock gears.

By moving the gearshift lever from the drive
(D) position to the manual (M) position,
you could now manually select the gear
you prefer. Only the current gear displays.
Press the (+) button or the (–) button to
upshift or downshift. If you press the (–)
button at a vehicle speed that would cause
an engine overspeed, the requested gear
flashes, then disappears, and the
transmission remains in the current gear.

Recommended shift speeds

Upshift according to the following chart:

Upshifts when accelerating (recommended for best fuel economy)

Diesel engines

Gasoline engines

Shift from:

12 mph (20 km/h)

15 mph (24 km/h)

1 – 2

19 mph (31 km/h)

25 mph (40 km/h)

2 – 3

26 mph (42 km/h)

40 mph (64 km/h)

3 – 4

34 mph (55 km/h)

45 mph (72 km/h)

4 – 5

46 mph (74 km/h)

50 mph (80 km/h)

5 – 6

130

Transmission

To prevent the engine from running at too
low an RPM, which could cause it to stall,
SelectShift still makes some downshifts
if it has determined 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 there is no
damage to the engine from over-revving.

SelectShift does not automatically upshift,
even if the engine is approaching the RPM
limit. Shift manually by pressing the (+)
button.

Note:

Engine damage could occur if you rev

the engine excessively and hold it without
shifting.

Progressive Range Selection

(If

Equipped)

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 activate progressive
range selection. The instrument cluster
indicates the available and selected gears.

Automatic Transmission at a Stop

(If Equipped)

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.

Automatic Transmission Adaptive
Learning

This feature could 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 is normal and does not
affect the function or durability of the
transmission. Over time, the adaptive
learning process fully updates transmission
operation.

Brake-Shift Interlock

WARNING:

Do not drive your

vehicle until you verify that the
stoplamps are working.

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 wheel
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.

131

Transmission

Your vehicle has a brake-shift interlock
feature 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 with the ignition in
the on position 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 200).

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):

Apply the parking brake. Switch the
ignition key to off, 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.

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 of
the 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.

E163185

Pull the lock lever into the full 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).

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9. Start your vehicle.

Perform Steps 4 through 8 in reverse order,
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

Note:

Do not rock your vehicle if the engine

is not at normal operating temperature or
damage to the transmission could occur.

132

Transmission

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.

If your vehicle is stuck in mud or snow, you
could 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.

POWER TAKE-OFF

(IF EQUIPPED)

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 or mobile. In the
stationary 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.

Your vehicle is approved for use as a
Stationary Mode, SplitShaft Mode or
Mobile Mode power source within the limits
and operating guidelines detailed in the
Ford Truck Body Builders Layout Book,
found at https://fordbbas.com/home and
through the Ford Truck Body Builders
Advisory Service. The transmission power
source modes are engine specific.

133

Transmission

GENERAL INFORMATION

WARNING:

Exceeding these ratings

by overloading can cause component
failure resulting in property damage,
personal injury or death.

Fluid Temperature

If the operating temperature exceeds
250°F (121°C), the rate of axle lubrication
oxidation increases and shortens the life
of the lubricant and seals, requiring axle
lubrication changes to become more
frequent to preserve the axle. Do not
consistently run extreme pressure (EP)
lubricants above 250°F (121°C).

Axle Conversions

WARNING:

When operating a

loaded vehicle, the driver must keep all
adjustable axles on the ground at all
times, supporting their share of the
vehicle’s load. Failure to do so can
overload other axles, tires, wheels,
springs, steering components, brakes
and frames, resulting in early component
failure, loss of vehicle control, possible
property damage and personal injury.

We do not recommend, or approve,
performing axle conversions. However, we
understand that, on occasion, others install
aftermarket add-on axles on the truck
chassis that allow operator control for
weight transfer from other axles (such as
air lift axles).

2-SPEED REAR AXLE

(IF EQUIPPED)

WARNING:

Never shift a

two-speed axle when descending a
steep grade as this may cause loss of
vehicle control and result in personal
injury.

Note:

Do not shift between ranges when

the speed control is on.

A two-speed rear axle allows the driver to
select a low range for greater pulling power
and a high range for greater road speed
and fuel economy. You can also use these
ranges to provide extra steps between
transmission shifts when driving on steep
grades or fuel economy may be factors.

Axle Shifting

E208228

Note:

Do not shift the axle to LOW when

your vehicle is moving. Use LOW when you
drive a fully loaded vehicle on a severe grade
or in congested traffic. Use HIGH for all
normal driving conditions with a lightly
loaded or partially loaded vehicle.

Note:

The axle is set to HIGH by default.

To shift the axle between HIGH and LOW
with the vehicle stopped, place the
transmission in position N, then press and
hold the button for two seconds.

134

Rear Axle

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.

E366571

E366

571

135

Pneumatic Locking Differential

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