warning FORD EXPLORER 2021 Owners Manual
[x] Cancel search | Manufacturer: FORD, Model Year: 2021, Model line: EXPLORER, Model: FORD EXPLORER 2021Pages: 577, PDF Size: 9.79 MB
Page 315 of 577

FUSE SPECIFICATION CHART
Engine Compartment Fuse Box
WARNING: Always disconnect the
battery before servicing high current
fuses. WARNING:
To reduce risk of
electrical shock, always replace the
cover to the power distribution box
before reconnecting the battery or
refilling fluid reservoirs. The engine compartment fuse box is under
the driver side leaf screen in the engine
compartment. It has high-current fuses
that protect your vehicle's main electrical
systems from overloads.
If you disconnect and reconnect the
battery, you need to reset some features.
See Changing the 12V Battery (page 336).
Note:
Replace fuses with the same type
and rating. See Changing a Fuse (page
320). 312
Explorer (CTW), enUSA, Edition date: 202007, Second-Printing FusesE288347
Page 323 of 577

Protected Component
Fuse Rating
Fuse or Relay
Number
Terrain management switch.
10A
31
Selectable drive mode switch.
Transceiver module.
Audio control module.
20A
32
Not used.
—
33
Run/start relay.
30A
34
Not used (spare).
5A
35
Park assist module.
15A
36
Image processing module A.
Not used (spare).
20A
37
Left-hand rear power window.
30A
38
Right-hand rear power window.
Note: Spare fuse amperage may vary.
CHANGING A FUSE
Fuses WARNING: Always replace a fuse
with one that has the specified
amperage rating. Using a fuse with a
higher amperage rating can cause severe
wire damage and could start a fire. If electrical components in the vehicle are
not working, a fuse may have blown. Blown
fuses are identified by a broken wire within
the fuse. Check the appropriate fuses
before replacing any electrical
components.
320
Explorer (CTW), enUSA, Edition date: 202007, Second-Printing FusesE217331
Page 325 of 577

GENERAL INFORMATION
Have your vehicle serviced regularly to help
maintain its roadworthiness and resale
value. There is a large network of
authorized dealers that are there to help
you with their professional servicing
expertise. We believe that their specially
trained technicians are best qualified to
service your vehicle properly and expertly.
They are supported by a wide range of
highly specialized tools developed
specifically for servicing your vehicle.
If your vehicle requires professional service,
an authorized dealer can provide the
necessary parts and service. Check your
warranty information to find out which
parts and services are covered.
Use only recommended fuels, lubricants,
fluids and service parts conforming to
specifications. Motorcraft® parts are
designed and built to provide the best
performance in your vehicle.
Precautions
•
Do not work on a hot engine.
• Make sure that nothing gets caught in
moving parts.
• Do not work on a vehicle with the
engine running in an enclosed space,
unless you are sure you have enough
ventilation.
• Keep all open flames and other burning
material (such as cigarettes) away
from the battery and all fuel related
parts.
Working with the Engine Off
1. Set the parking brake and shift the transmission to park (P).
2. Switch off the engine.
3. Block the wheels. Working with the Engine On WARNING: To reduce the risk of
vehicle damage and personal burn
injuries, do not start your engine with the
air cleaner removed and do not remove
it while the engine is running.
1. Set the parking brake and shift the transmission to park (P).
2. Block the wheels.
OPENING AND CLOSING THE
HOOD
Opening the Hood 1. Open the left-hand front door.
2. Fully pull the hood release lever and
let it completely retract.
Note: This action releases the hood latch.
3. Fully pull the hood release lever for a second time.
Note: This action fully releases the hood.
4. Open the hood.
Note: There is no secondary latch under the
hood.
322
Explorer (CTW), enUSA, Edition date: 202007, Second-Printing MaintenanceE263274
Page 326 of 577

5. Support the hood with the prop rod.
Closing the Hood WARNING: Make sure that you fully
latch the hood before driving. Failure to
follow this instruction could result in
personal injury or death.
1. Remove the prop rod from the catch and secure it correctly in the clip.
2. Lower the hood and allow it to drop under its own weight for the last
10– 14 in (25– 35 cm)
.
Note: Make sure that the hood is correctly
closed.
UNDER HOOD OVERVIEW - 2.3L ECOBOOST™ Battery. See
Changing the 12V Battery (page 336).
A
Engine oil filler cap. See
Engine Oil Check (page 326).
B
323
Explorer (CTW), enUSA, Edition date: 202007, Second-Printing MaintenanceE318379 E288593
Page 330 of 577

8.
Make sure that the oil level is between
the maximum and minimum marks. If
the oil level is at the minimum mark,
add oil immediately. See Capacities
and Specifications (page 391).
9. If the oil level is correct, replace the dipstick and make sure it is fully seated.
Note: Do not remove the dipstick when the
engine is running.
Note: If the oil level is between the
maximum and minimum marks, the oil level
is acceptable. Do not add oil.
Note: The oil consumption of new engines
reaches its normal level after approximately
3,000 mi (5,000 km)
.
Adding Engine Oil WARNING: Do not remove the filler
cap when the engine is running.
Do not use supplemental engine oil
additives because they are unnecessary
and could lead to engine damage that may
not be covered by the vehicle Warranty. Only use oils certified for gasoline engines
by the American Petroleum Institute (API).
An oil with this trademark symbol
conforms to the current engine and
emission system protection standards and
fuel economy requirements of the
International Lubricants Specification
Advisory Committee (ILSAC).
To top up the engine oil level do the
following:
1. Clean the area surrounding the engine
oil filler cap before you remove it.
2. Remove the engine oil filler cap. See Under Hood Overview
(page 323).
Turn it counterclockwise and remove
it.
3. Add engine oil that meets our specifications. See
Capacities and
Specifications (page 391). You may
have to use a funnel to pour the engine
oil into the opening.
4. Recheck the oil level.
5. If the oil level is correct, replace the dipstick and make sure it is fully seated.
6. Replace the engine oil filler cap. Turn it clockwise until you feel a strong
resistance.
Note: Do not add oil further than the
maximum mark. Oil levels above the
maximum mark may cause engine damage.
Note: Make sure you install the oil filler cap
correctly.
Note: Soak up any spillage with an
absorbent cloth immediately.
OIL CHANGE INDICATOR
RESET
Use the information display controls on
the steering wheel to reset the oil change
indicator.
327
Explorer (CTW), enUSA, Edition date: 202007, Second-Printing MaintenanceE142732
Page 331 of 577

From the main menu scroll to:
Action and description
Message
Press the right arrow button,
then from this menu scroll
to the following message.
Settings
Press the right arrow button,
then from this menu scroll
to the following message.
Vehicle
Press and hold the OK
button until the instrument
cluster displays the
following message.
Hold OK to
Reset
Reset Successful
When the oil change indic-
ator resets the instrument
cluster displays 100%.
Remaining Life
{00}%
If the instrument cluster
displays one of the following
messages, repeat the
process.
Not Reset
Reset Cancelled
CHANGING THE ENGINE AIR
FILTER - 2.3L ECOBOOST™ WARNING:
To reduce the risk of
vehicle damage and personal burn
injuries, do not start your engine with the
air cleaner removed and do not remove
it while the engine is running. When changing the engine air filter, do not
allow debris or foreign material to enter
the air induction system. Engine
components are susceptible to damage
not covered by the vehicle Warranty.
Change the air filter element at the correct
interval. See
Scheduled Maintenance
(page 482).
Incorrect component use can cause
damage not covered by the vehicle
Warranty. See
Motorcraft Parts (page
388).
To replace the air filter element do the
following: 1. Remove the clips that secure the air
filter housing cover.
2. Using a screwdriver, loosen the clamp on air filter housing cover.
3. Gently pull the boot back away from the air filter housing cover.
328
Explorer (CTW), enUSA, Edition date: 202007, Second-Printing MaintenanceE294782
Page 332 of 577

4.
Carefully lift the air filter housing cover
from the air filter housing assembly.
5. Remove the air filter element from the
air filter housing.
6. Wipe any dirt or debris from the air filter
housing and cover to make sure no dirt
gets in the engine and that you have a
good seal.
7. Install a new air filter element. Be careful not to crimp the filter element
edges between the air filter housing
and cover. This could cause filter
damage and allow unfiltered air to
enter the engine if it is not properly
seated.
8. Install the air filter housing cover.
9. Engage the clips to secure the air filter housing cover to the air filter housing.
10. Reconnect the boot to the air filter housing cover and torque to 3.69 lb.ft
(5 Nm).
CHANGING THE ENGINE AIR
FILTER - 3.0L WARNING:
To reduce the risk of
vehicle damage and personal burn
injuries, do not start your engine with the
air cleaner removed and do not remove
it while the engine is running.
When changing the engine air filter, do not
allow debris or foreign material to enter
the air induction system. Engine
components are susceptible to damage
not covered by the vehicle Warranty.
Change the air filter element at the correct
interval. See
Scheduled Maintenance
(page 482). Incorrect component use can cause
damage not covered by the vehicle
Warranty.
See Motorcraft Parts (page
388).
To replace the air filter element do the
following: 1. Remove the clips that secure the air
filter housing cover.
2. Using a screwdriver, loosen two clamps
on either side of the air filter housing
cover.
3. Gently pull the two boots back away from the air filter housing cover.
4. Carefully lift the air filter housing cover.
5. Remove the air filter element from the
air filter housing.
6. Wipe any dirt or debris from the air filter
housing and cover to make sure no dirt
gets in the engine and that you have a
good seal.
329
Explorer (CTW), enUSA, Edition date: 202007, Second-Printing MaintenanceE294778
Page 333 of 577

7. Install a new air filter element. Be
careful not to crimp the filter element
edges between the air filter housing
and cover. This could cause filter
damage and allow unfiltered air to
enter the engine if it is not properly
seated.
8. Install the air filter housing cover.
9. Engage the clips to secure the air filter housing cover to the air filter housing.
10. Reconnect the two boots on the air filter housing cover and torque to
3.69 lb.ft (5 Nm).
CHANGING THE ENGINE AIR
FILTER - 3.3L WARNING:
To reduce the risk of
vehicle damage and personal burn
injuries, do not start your engine with the
air cleaner removed and do not remove
it while the engine is running.
Note: Failure to use the correct air filter
element may result in severe engine
damage. Resulting component damage
may not be covered by the vehicle Warranty.
Note: When servicing the air cleaner, do
not allow foreign material to enter the air
induction system. The engine is susceptible
to damage from even small particles.
When changing the air filter element, use
only the air filter element listed.
Change the air filter element at the proper
intervals. See
Scheduled Maintenance
(page 482). 1.
Release the clamps that secure the air
filter cover to the housing.
2. Using a screwdriver, loosen the clamp on the air filter housing cover.
3. Gently pull the boot back away from the air filter housing cover.
4. Carefully lift the air filter housing cover.
5. Remove the air filter element from the
air filter housing.
6. Wipe any dirt or debris from the air filter
housing and cover to make sure no dirt
gets in the engine and that you have a
good seal.
7. Install a new air filter element. Be careful not to crimp the filter element
edges between the air filter housing
and cover. This could cause filter
damage and allow unfiltered air to
enter the engine if it is not properly
seated.
330
Explorer (CTW), enUSA, Edition date: 202007, Second-Printing MaintenanceE295061
x2
Page 334 of 577

8. Install the air filter housing cover.
9. Engage the clips to secure the air filter
housing cover to the air filter housing.
10. Reconnect the boot to the air filter housing cover and torque to 3.69 lb.ft
(5 Nm).
ENGINE COOLANT CHECK WARNING:
Do not remove the
coolant reservoir cap when the engine is
on or 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 482).
Note: Make sure that the coolant level is
between the
MIN and the MAX marks on
the coolant reservoir. Note:
Coolant expands when it is hot. The
level may extend beyond the
MAX mark.
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 on or the
cooling system is hot. Failure to follow
this instruction could result in personal
injury. WARNING:
Do not remove the
coolant reservoir cap when the engine is
on or 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.
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.
Note: Automotive fluids are not
interchangeable.
331
Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Maintenance
Page 336 of 577

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%.
• A coolant concentration of 40%
provides improved overheat protection.
• Coolant concentrations below 40%
decrease the overheat 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.
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 391). 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
333
Explorer (CTW), enUSA, Edition date: 202007, Second-Printing Maintenance