2018 FORD TRANSIT cooling

Protected Component
Relay Number
Not used.
R8
Starter motor.
R9
Air conditioning clutch.
R10
Fuel vaporizer system glow plug.
R11
Fuel injection pump.
R12
Not used.
R13
Not used.
R14
Low-speed and high-speed cooling fan relay.
R15
Selective catalytic reduction system.
R16
Powertrain control module.
R17
High-speed cooling fan.
R18
Passenger Compartment Fuse Box 212
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- FusesE148827

Protected Component
Fuse Rating
Fuse Number
Not used.
-
F5
Not used.
-
F6
Automatic transmission module.
7.5 A
F7
Cooling fan.
30 A
F8
Not used.
-
F9
Power step.
30 A
F10
Heated seats.
Air conditioning clutch.
10 A
F11
Not used.
-
F12
Not used.
-
F13
Not used.
-
F14
Not used.
-
F15
Fuel pump relay.
20 A
F16
Not used.
-
F17
Anti-lock brake system.
30 A
F18
Fuel pump relay.
Starter motor solenoid.
30 A
F19
Not used.
-
F20
Ignition relay 3.
60 A
F21
Selective catalytic reduction system catalyst.
40 A
F22
Brake vacuum pump relay.
Spare.
10 A
F23
Not used.
-
F24
Spare.
10 A
F25
Spare.
20 A
F26
Not used.
-
F27
Not used.
-
F28
Audio unit.
3 A
F29
219
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Fuses

Protected Component
Fuse Rating
Fuse Number
Cooling fan.
40 A
F30
Cooling fan.
40 A
F31
Windshield wiper motor.
30 A
F32
Not used.
-
F33
Not used.
-
F34
Powertrain control module.
20 A
F35
Mass air flow sensor.
20 A
F36
Not used.
-
F37
Air conditioning clutch.
20 A
F38
Exhaust gas temperature sensor -3.7L.
7.5 A
F39 Fuel vaporizer system fuel pump -3.7L.
Coolant bypass solenoid valve -3.7L.
Low-speed cooling fan -3.7L.
High-speed cooling fan -3.7L.
Exhaust gas temperature sensor - 3.5L Ecoboost.
10 A Fuel vaporizer system fuel pump - 3.5L Ecoboost.
Coolant bypass solenoid valve - 3.5L Ecoboost.
Low-speed cooling fan - 3.5L Ecoboost.
High-speed cooling fan - 3.5L Ecoboost. Protected Component
Relay Number
Ignition relay 3.
R1
Not used.
R2
Not used.
R3
Not used.
R4
Cooling fan.
R5
Windshield wiper on/off relay.
R6
Windshield wiper high/low speed relay.
R7
Brake vacuum pump.
R8
Starter motor.
R9
220
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Fuses

Protected Component
Relay Number
Air conditioning clutch.
R10
Not used.
R11
Fuel injection pump.
R12
Not used.
R13
Not used.
R14
Low-speed and high-speed cooling fan relay.
R15
Not used.
R16
Powertrain control module.
R17
High-speed cooling fan.
R18
Passenger Compartment Fuse Box 221
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- FusesE148827

5. After 25 seconds, a message appears
confirming that the reset is complete.
6. Release the accelerator and brake pedals.
7. Switch the ignition off.
ENGINE COOLING FAN -
DIESEL WARNING: Keep your hands and
clothing clear of the engine cooling fan.
Under certain conditions, the engine
cooling fan may continue to run for several
minutes after you switch your vehicle off.
This could happen in low ambient
temperatures and independent of the
engine coolant temperature, for example
short journeys or low coolant temperature.
See Diesel Particulate Filter (page 145).
ENGINE COOLING FAN - E85/
GASOLINE WARNING:
Keep your hands and
clothing clear of the engine cooling fan.
Under certain conditions, the engine
cooling fan may continue to run for several
minutes after you switch your vehicle off. ENGINE COOLANT CHECK WARNING:
Do not remove the
coolant reservoir cap when the cooling
system is hot. Wait 10 minutes for the
cooling system to cool down. Cover the
coolant reservoir cap with a thick cloth to
prevent the possibility of scalding and
slowly remove the cap. Failure to follow
this instruction could result in personal
injury. WARNING: Do not put coolant in the
windshield washer reservoir. If sprayed on
the windshield, coolant could make it
difficult to see through the windshield. WARNING:
To reduce the risk of
personal injury, make sure the engine is
cool before unscrewing the coolant
pressure relief cap. The cooling system is
under pressure. Steam and hot liquid can
come out forcefully when you loosen the
cap slightly. WARNING:
Do not add coolant
further than the MAX mark.
When the engine is cold, check the
concentration and level of the coolant at
the intervals listed in the scheduled
maintenance information. See Scheduled
Maintenance
(page 459).
Note: Make sure that the coolant level is
between the
MIN and MAX marks on the
coolant reservoir.
Note: Coolant expands when it is hot. The
level may extend beyond the
MAX mark.
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2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Maintenance

Maintain coolant concentration within
48% to 50%, which equates to a freeze
point between -29°F (-34°C) and -35°F
(-37°C). Coolant concentration should be
checked using a refractometer. We do not
recommend the use of hydrometers or
coolant test strips for measuring coolant
concentration.
Adding Coolant WARNING:
Do not add engine
coolant when the engine is hot. Failure to
follow this instruction could result in
personal injury. WARNING:
Do not remove the
coolant reservoir cap when the cooling
system is hot. Wait 10 minutes for the
cooling system to cool down. Cover the
coolant reservoir cap with a thick cloth to
prevent the possibility of scalding and
slowly remove the cap. Failure to follow
this instruction could result in personal
injury.
Note: Automotive fluids are not
interchangeable. Take care not to put
engine coolant in the windshield washer
fluid reservoir or windshield washer fluid in
the engine coolant reservoir.
Note: Do not use stop leak pellets, cooling
system sealants, or non-specified additives
as they can cause damage to the engine
cooling or heating systems. Resulting
component damage may not be covered by
the vehicle Warranty. It is very important to use prediluted
coolant approved to the correct
specification in order to avoid plugging the
small passageways in the engine cooling
system. See
Capacities and
Specifications (page 305). Do not mix
different colors or types of coolant in your
vehicle. Mixing of engine coolants or using
an incorrect coolant may harm the engine
or cooling system components and may
not be covered by the vehicle Warranty.
Note: If prediluted coolant is not available,
use the approved concentrated coolant
diluting it to 50/50 with distilled water. See
Capacities and Specifications (page
305).
Using water that has not been deionised
may contribute to deposit formation,
corrosion and plugging of the small cooling
system passageways.
Note: Coolants marketed for all makes and
models may not be approved to our
specifications and may cause damage to
the cooling system. Resulting component
damage may not be covered by the vehicle
Warranty.
If the coolant level is at or below the
minimum mark, add prediluted coolant
immediately.
To top up the coolant level do the
following:
1. Unscrew the cap slowly. Any pressure escapes as you unscrew the cap.
2. Add prediluted coolant approved to the correct specification. See
Capacities and Specifications (page
305
).
3. Add enough prediluted coolant to reach the correct level.
4. Replace the coolant reservoir cap, turn
it clockwise until you feel a strong
resistance.
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2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Maintenance

5. Check the coolant level in the coolant
reservoir the next few times you drive
your vehicle. If necessary, add enough
prediluted engine coolant to bring the
coolant level to the correct level.
If you have to add more than 1.1 qt (1 L) of
engine coolant per month, have your
vehicle checked as soon as possible.
Operating an engine with a low level of
coolant can result in engine overheating
and possible engine damage.
Note: During normal vehicle operation, the
coolant may change color from orange to
pink or light red. As long as the coolant is
clear and uncontaminated, this color change
does not indicate the coolant has degraded
nor does it require the coolant to be drained,
the system to be flushed, or the coolant to
be replaced.
In case of emergency, you can add a large
amount of water without engine coolant
in order to reach a vehicle service location.
In this instance, qualified personnel:
1. Must drain the cooling system.
2. Chemically clean the coolant system.
3. Refill with engine coolant as soon as possible.
Water alone, without engine coolant, can
cause engine damage from corrosion,
overheating or freezing.
Do not use the following as a coolant
substitute:
• Alcohol.
• Methanol.
• Brine.
• Any coolant mixed with alcohol or
methanol antifreeze.
Alcohol and other liquids can cause engine
damage from overheating or freezing. Do not add extra inhibitors or additives to
the coolant. These can be harmful and
compromise the corrosion protection of
the coolant.
Recycled Coolant
We do not recommend the use of recycled
coolant as an approved recycling process
is not yet available.
Dispose of used engine coolant in an
appropriate manner. Follow your
community's regulations and standards
for recycling and disposing of automotive
fluids.
Severe Climates
If you drive in extremely cold climates:
•
It may be necessary to increase the
coolant concentration above 50%.
• A coolant concentration of 60%
provides improved freeze point
protection. Coolant concentrations
above 60% decrease the overheat
protection characteristics of the
coolant and may cause engine
damage.
If you drive in extremely hot climates:
• You can decrease the coolant
concentration to 40%.
• Coolant concentrations below 40%
decrease the freeze and corrosion
protection characteristics of the
coolant and may cause engine
damage.
Vehicles driven year-round in non-extreme
climates should use prediluted coolant for
optimum cooling system and engine
protection.
238
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Maintenance

Coolant Change
At specific mileage intervals, as listed in
the scheduled maintenance information,
the coolant should be changed. Add
prediluted coolant approved to the correct
specification. See Capacities and
Specifications (page 305).
Fail-Safe Cooling
Fail-safe cooling allows you to temporarily
drive your vehicle before any incremental
component damage occurs. The fail-safe
distance depends on ambient
temperature, vehicle load and terrain.
How Fail-Safe Cooling Works If the engine begins to overheat,
the coolant temperature gauge
moves toward the red zone:
A warning lamp illuminates and
a message may appear in the
information display.
If the engine reaches a preset
over-temperature condition, the engine
automatically switches to alternating
cylinder operation. Each disabled cylinder
acts as an air pump and cools the engine.
When this occurs, your vehicle still
operates, however:
• Engine power is limited.
• The air conditioning system turns off.
Continued operation increases the engine
temperature, causing the engine to
completely shut down. Your steering and
braking effort increases in this situation.
When the engine temperature cools, you
can re-start the engine. Have your vehicle
checked as soon as possible to minimize
engine damage. When Fail-Safe Mode Is Activated WARNING:
Fail-safe mode is for use
during emergencies only. Operate your
vehicle in fail-safe mode only as long as
necessary to bring your vehicle to rest in a
safe location and seek immediate repairs.
When in fail-safe mode, your vehicle will
have limited power, will not be able to
maintain high-speed operation, and may
completely shut down without warning,
potentially losing engine power, power
steering assist, and power brake assist,
which may increase the possibility of a
crash resulting in serious injury. WARNING:
Do not remove the
coolant reservoir cap when the cooling
system is hot. Wait 10 minutes for the
cooling system to cool down. Cover the
coolant reservoir cap with a thick cloth to
prevent the possibility of scalding and
slowly remove the cap. Failure to follow
this instruction could result in personal
injury.
Your vehicle has limited engine power
when in the fail-safe mode, drive your
vehicle with caution. Your vehicle does not
maintain high-speed operation and the
engine may operate poorly.
Remember that the engine is capable of
automatically shutting down to prevent
engine damage. In this situation:
1. Pull off the road as soon as safely possible and switch the engine off.
2. If you are a member of a roadside assistance program, we recommend
that you contact your roadside
assistance service provider.
3. If this is not possible, wait a short period for the engine to cool.
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2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Maintenance