engine FORD TRANSIT 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 - 3.5L
DURATEC/3.5L ECOBOOST™ 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.
Your vehicle has various emission control
components and a catalytic converter that
enables it to comply with applicable
exhaust emission standards.
To avoid damaging the catalytic converter:
• 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 251).
• Do not switch the ignition off when your
vehicle is moving.
• Do not use leaded fuel.
• Avoid running out of fuel.
Note: Resulting component damage may
not be covered by the vehicle Warranty.
159
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Engine Emission Control

On-Board Diagnostics System
Your vehicle has an on-board diagnostics
system that monitors the emission control
system. If any of the following warning
lamps illuminate, this may indicate that
the on-board diagnostics system has
detected an emission control system
malfunction.
Continuing to drive your vehicle may cause
reduced power or the engine to stop.
Failure to respond to a warning lamp may
cause component damage not covered by
the vehicle Warranty. Have your vehicle
checked as soon as possible.
160
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Engine Emission Control

AUTOMATIC TRANSMISSION
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. WARNING:
When your vehicle is
stationary, keep the brake pedal fully
pressed when shifting gears. Failure to
follow this instruction could result in
personal injury, death or property
damage. 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.
Selector Lever Positions
The instrument cluster displays the current
position.
Park (P)
In park (P), power is not transmitted to the
driven wheels and the transmission is
locked. You can start the engine with the
transmission in this position.
Shift into park (P) only when your vehicle
is stationary.
Reverse (R)
Shift into reverse (R) only when your
vehicle is stationary and the engine is at
idle speed. Neutral (N) WARNING:
In neutral (N) your
vehicle has the ability to roll freely. If you
intend to leave your vehicle, make sure
you apply the parking brake.
In neutral (N), power is not transmitted to
the driven wheels but the transmission is
not locked. You can start the engine with
the transmission in this position.
Drive (D)
Drive (D) is the normal position for driving.
Manual (M)
In manual (M), you can upshift or
downshift using the buttons on the
selector lever.
SelectShift™
Use this feature to upshift or downshift
using the buttons on the selector lever.
Shift into manual (M) to switch the feature
on.
• Press the
+ button to upshift.
• Press the
– button to downshift.
Shift into another gear to switch the
feature off.
Progressive Range Selection
Use this feature to lock out gears using the
buttons on the selector lever. This may
provide you with an improved driving
experience, for example, on slippery roads
or steep slopes.
With the transmission in drive (D), press
the
– button to switch the feature on.
Note: The instrument cluster displays the
available and selected gears.
161
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Transmission

Press the – button again to lock out gears
beginning with the highest gear. For
example, press the
– button twice to lock
out 10th and 9th gears.
Note: The instrument cluster only displays
the available gears and the transmission
automatically shifts between the available
gears.
Press the + button to unlock gears to allow
the transmission to shift to higher gears.
Note: The transmission automatically shifts
within the gear range you select.
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 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.
Brake shift interlock prevents you from
shifting out of park (P) when you have
switched the ignition on and not pressed
the brake pedal.
Use the brake shift interlock lever to move
the selector lever out of park (P) if you
cannot start the engine.
In the event of an electrical malfunction,
it is possible that a fuse has blown or the
stoplamps are not working. See
Fuse
Specification Chart (page 264). If the vehicle battery has no charge, jump
start your vehicle. See Jump Starting the
Vehicle
(page 251).
1. Using a flat-bladed screwdriver,
remove the panel. 2. Locate the brake shift interlock lever.
162
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing TransmissionE182198 E182199
3

3. Push the brake shift interlock lever
toward the rear of your vehicle and
hold it there.
4. Move the selector lever from park (P) to neutral (N).
5. Install the panel.
6. Press the brake pedal, start the engine
and release the parking brake.
Transmission Not in Park (P)
Audible Warning
Sounds when you open the driver door and
you have not moved the selector lever to
park (P).
Automatic Transmission Information Messages Description
Message
The system has detected a fault that requires service. Have
your vehicle checked as soon as possible.
Transmission Service
Required
Displays as a reminder to shift into park (P).
Transmission Not in Park
Press the brake pedal to unlock the transmission.
Press Brake to Unlock
Gearshift Lever
TOW/HAUL 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. Tow/haul delays upshifts to reduce the
frequency of transmission shifting.
Tow/haul provides engine braking in all
forward gears, which slows your vehicle
and assists you in controlling your vehicle
when descending a slope.
Tow/haul improves transmission operation
when towing a trailer or a heavy load.
Depending on driving conditions and load
conditions, tow/haul may downshift the
transmission, slow your vehicle and control
your vehicle speed when descending a hill,
without pressing the accelerator pedal.
The amount of downshift braking provided
varies based upon the amount the brake
pedal is pressed.
163
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing TransmissionE174827

If Your Vehicle Goes Off the Edge of the
Pavement
•
If your vehicle goes off the edge of the
pavement, slow down, but avoid severe
brake application, ease the vehicle
back onto the pavement only after
reducing your speed. Do not turn the
steering wheel too sharply while
returning to the road surface.
• It could be safer to stay on the apron
or shoulder of the road and slow down
gradually before returning to the
pavement. You could lose control if you
do not slow down or if you turn the
steering wheel too sharply or abruptly.
• It often could be less risky to strike
small objects, such as highway
reflectors, with minor damage to your
vehicle rather than attempt a sudden
return to the pavement which could
cause the vehicle to slide sideways out
of control or rollover. Remember, your
safety and the safety of others should
be your primary concern.
If Your Vehicle Gets Stuck 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:
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. WARNING:
Do not spin the wheels
at over 34 mph (55 km/h). The tires may
fail and injure a passenger or bystander. If your vehicle gets stuck in mud or snow it
could be rocked out by shifting between
forward and reverse gears, stopping
between shifts, in a steady pattern. Press
lightly on the accelerator in each gear.
If your vehicle is equipped with
AdvanceTrac® with Roll Stability
Control
™, it could be beneficial to
disengage the AdvanceTrac® with Roll
Stability Control ™ system while
attempting to rock the vehicle.
Note: Do not rock the vehicle if the engine
is not at normal operating temperature or
damage to the transmission could occur.
Note: Do not rock the vehicle for more than
a few minutes or damage to the
transmission and tires could occur or the
engine could overheat.
Emergency Maneuvers
• In an unavoidable emergency situation
where a sudden sharp turn must be
made, remember to avoid
"over-driving" your vehicle (i.e., turn the
steering wheel only as rapidly and as
far as required to avoid the
emergency). Excessive steering can
result in less vehicle control, not more.
Additionally, smooth variations of the
accelerator and/or brake pedal
pressure should be utilized if changes
in vehicle speed are called for. Avoid
166
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing All-Wheel Drive

When climbing a steep slope or hill, start
in a lower gear rather than downshifting to
a lower gear from a higher gear once the
ascent has started. This reduces strain on
the engine and the possibility of stalling.
If you do stall out, do not try to turn around
because you might roll over. It is better to
back down to a safe location.
Apply just enough power to the wheels to
climb the hill. Too much power can cause
the tires to slip, spin or lose traction,
resulting in loss of vehicle control.
Descend a hill in the same gear you would
use to climb up the hill to avoid excessive
brake application and brake overheating.
Do not descend in neutral; instead,
disengage overdrive or manually shift to a
lower gear. When descending a steep hill,
avoid sudden hard braking as you could
lose control. The front wheels have to be
turning in order to steer the vehicle.
Driving on Snow and Ice
WARNING: If you are driving in
slippery conditions that require tire
chains or cables, then it is critical that
you drive cautiously. Keep speeds down,
allow for longer stopping distances and
avoid aggressive steering to reduce the chances of a loss of vehicle control
which can lead to serious injury or death.
If the rear end of your vehicle slides while
cornering, steer in the direction of the
slide until you regain control of your
vehicle.
Note: Excessive tire slippage can cause
driveline damage.
AWD vehicles have advantages over 2WD
vehicles in snow and ice but can skid like
any other vehicle.
Should you start to slide while driving on
snowy or icy roads, turn the steering wheel
in the direction of the slide until you regain
control.
Avoid sudden applications of power and
quick changes of direction on snow and
ice. Apply the accelerator slowly and
steadily when starting from a full stop.
Avoid sudden braking as well. Although an
AWD vehicle could accelerate better than
a two-wheel drive vehicle in snow and ice,
it won ’t stop any faster, because as in other
vehicles, braking occurs at all four wheels.
Do not become overconfident as to road
conditions.
Make sure you allow sufficient distance
between you and other vehicles for
stopping. Drive slower than usual and
consider using one of the lower gears. In
emergency stopping situations, apply the
brake steadily.
Your vehicle has anti-lock brakes, therefore
apply the brakes steadily. Do not “pump”
the brakes.
168
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing All-Wheel DriveE143949

Maintenance and Modifications
The suspension and steering systems on
your vehicle have been designed and
tested to provide predictable performance
whether loaded or empty and durable load
carrying capability. For this reason, we
strongly recommend that you do not make
modifications such as adding or removing
parts (such as lowering kits or stabilizer
bars) or by using replacement parts not
equivalent to the original factory
equipment.
Any modifications to a vehicle that raise
the center of gravity can make it more likely
the vehicle will rollover as a result of a loss
of control. We strongly recommend that
caution be used with any vehicle equipped
with a high load or device (such as ladder
or luggage racks).
Failure to maintain your vehicle properly
could void the warranty, increase your
repair cost, reduce vehicle performance
and operational capabilities and adversely
affect driver and passenger safety.
Frequent inspection of vehicle chassis
components is recommended if the vehicle
is subjected to off-highway usage.
All-Wheel Drive Gauge
This feature shows how the engine power
is split between the front and rear axles in
real time.
1. Using the information display controls
on the steering wheel, select Settings.
2. Select Information.
3. Select
Intelligent AWD.
All-Wheel Drive Information Messages Description
Message
The system is temporarily locked. This could be due to the
system increasing its capacity in order to improve perform-
ance.
AWD Temporarily Locked
The system temporarily turns off. This could be due to the
system overheating. Stop your vehicle as soon as it is safe
to do so and allow the system to cool.
AWD Temporarily
Disabled
The system resumes normal function.
AWD Restored
The system has malfunctioned. Have your vehicle checked
as soon as possible.
AWD Malfunction Service
Required
The system temporarily turns off to protect itself from over-
heating or if you are using a mismatched tire.
AWD OFF
169
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing All-Wheel Drive

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. See Cleaning the Wheels
(page 308). 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. Move the gearshift lever 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 rapidly
brake 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 turn 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 system is disabled, normal
braking is still effective. This
lamp momentarily illuminates
when you turn the ignition on. If the lamp
remains on when you release the parking
brake, have the system checked by an
authorized dealer.
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.
170
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing BrakesE138644 E138644

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 turns off if
there is a malfunction or if you
excessively rev the engine.
The system makes it easier for you to pull
away when your vehicle is on a slope
without using the parking brake. When the system activates, your vehicle
remains stationary for a few seconds after
you release the brake pedal. This gives you
time to move your foot from the brake
pedal to the accelerator pedal. The brakes
release when the engine has developed
sufficient torque to prevent your vehicle
from rolling down the slope.
Using Hill Start Assist
1. Bring your vehicle to a complete
standstill. Keep the brake pedal
pressed.
2. Select a gear.
Note: The system activates if the sensors
detect that your vehicle is on a slope.
3. Pull away in the normal manner.
Note: When you remove your foot from the
brake pedal, your vehicle remains on the
slope without rolling away for a few
seconds. This hold time increases if you are
in the process of driving off.
Switching Hill Start Assist On or Off
Vehicles with Manual Transmission
To switch hill start assist on or off, use the information display controls on the
steering wheel to select the following: Action
Menu Item
Press the menu button.
Driver Assist.
Press the
OK button.
Hill Start Assist
The system remembers the last setting
when you start your vehicle.
Note: There is no indicator to indicate
whether the system is on or off. Vehicles with Automatic Transmission
The system turns on when you switch the
ignition on and you cannot switch the
system off.
171
2021 Transit (TTH) Canada/United States of America, MK3J 19A321 AA enUSA, Edition date: 202010, Second-Printing Brakes