Ford E-450 (2018 year). Manual — part 38

4. Turn the A/C on and allow the engine

to idle for at least one minute.

5. Fully press the foot brake. Release the

parking brake. Shift the gearshift lever
to Drive (D) and allow the engine to
idle for at least one minute.

6. Drive the vehicle for approximately

10 mi (16 km) to complete the
relearning process.

Note: If you do not carry out the above
process, the idle quality of your vehicle may
be adversely affected until the idle trim is
eventually relearned.

Flexible fuel vehicles operating on E85 may
experience poor starts and driveability
problems until the fuel trim and ethanol
content have been relearned.

When the battery is disconnected or a new
battery installed, the transmission must
learn its adaptive strategy. As a result of
this, the transmission may shift firmly. This
operation is considered normal and fully
updates transmission operation to its
optimum shift feel. We recommend that
the negative battery cable terminal be
disconnected from the battery if you plan
to store your vehicle for an extended period
of time. This minimizes the discharge of
your battery during storage.

Dual Batteries

(If Equipped)

Your vehicle may be fitted with a
frame-mounted battery located on the
passenger side frame rail, behind the front
passenger door. This battery is connected
in parallel with the battery in the engine
compartment. Both batteries are used to
start the vehicle.

CHECKING THE WIPER
BLADES

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Run the tip of your fingers over the edge of
the blade to check for roughness.

Clean the wiper blades with washer fluid
or water applied with a soft sponge or
cloth.

CHANGING THE WIPER
BLADES

You can manually move the wiper arms
when the ignition is off. This allows for ease
of blade replacement and cleaning under
the blades.

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1.

Pull the wiper blade and arm away
from the glass.

A

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2. Release the wiper blade lock (A) and

separate the wiper blade from the
wiper arm.

3. Install in the reverse order.

Note: Make sure that the wiper blade locks
into place. Lower the wiper arm and blade
back on the windshield. The wiper arms will
automatically return to their normal position
when you turn the ignition on.

•

Replace wiper blades at least once per
year for optimum performance.

•

You can improve poor wiper quality by
cleaning the wiper blades and the
windshield.

ADJUSTING THE HEADLAMPS

We properly aim the headlamps on your
vehicle at the assembly plant. If your
vehicle has been in an accident, have an
authorized dealer check the alignment of
your headlamps.

Vertical Aim Adjustment
Procedure

You can only adjust the headlamps
vertically. Your vehicle does not require
horizontal aim adjustments.

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8 feet (2.4 meters).

A

Center height of lamp to ground.

B

25 feet (7.6 meters).

C

Horizontal reference line.

D

To adjust the headlamps:

1.

Park the vehicle directly in front of a
wall or screen on a level surface,
approximately 25 ft (7.6 m) away.

2. Measure the height of the headlamp

bulb center from the ground and mark
an 8 ft (2.4 m) horizontal reference line
on the vertical wall or screen at this
height.

Note: To see a clearer light pattern for
adjusting, you may want to block the light
from one headlamp while adjusting the
other.

3. Turn on the low beam headlamps to

illuminate the wall or screen and open
the hood.

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4. On the wall or screen, you will observe

a flat zone of high intensity light
located at the top of the right hand
portion of the beam pattern. If the top
edge of the high intensity light zone is
not at the horizontal reference line, you
will need to adjust the headlamp.

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5. Locate the vertical adjuster on each

headlamp. Using a Phillips #2
screwdriver, turn the adjuster either
clockwise or counterclockwise in order
to adjust the vertical aim of the
headlamp.

6. Repeat steps 3 through 5 to adjust the

other headlamp.

7.

Close the hood and switch off the
lamps.

REMOVING A HEADLAMP

1.

Make sure the headlamp switch is in
the off position, then open the hood.

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2. Remove the three screws from the

headlamp assembly and pull the
assembly straight out.

3. Disconnect the electrical connector by

squeezing the release tab and pushing
the connector forward, then pulling it
rearward.

4. Remove the headlamp.

To install the new lamp, follow the
removal procedures in reverse order.

CHANGING A BULB

Lamp Assembly Condensation

Exterior lamps are vented to
accommodate normal changes in
pressure. Condensation can be a natural
by-product of this design. When moist air
enters the lamp assembly through the
vents, there is a possibility that
condensation can occur when the
temperature is cold. When normal

condensation occurs, a thin film of mist
can form on the interior of the lens. The
thin mist eventually clears and exits
through the vents during normal operation.
Clearing time may take as long as 48 hours
under dry weather conditions.

Examples of acceptable condensation are:
•

Presence of thin mist (no streaks, drip
marks or droplets).

•

Fine mist covers less than 50% of the
lens.

Examples of unacceptable moisture
(usually caused by a lamp water leak) are:
•

Water puddle inside the lamp.

•

Large water droplets, drip marks or
streaks present on the interior of the
lens.

Take your vehicle to a dealer for service if
any of the above conditions of
unacceptable moisture are present.

Replacing Headlamp Bulbs

WARNING

Make sure the bulbs have cooled
down before removing them. Failure
to follow this warning could result in

serious personal injury.

Note: Grasp the bulb by only its plastic base
and do not touch the glass. The oil from your
hand could cause the bulb to break the next
time the headlamps are operated.

Note: If the bulb is accidentally touched,
clean it with rubbing alcohol before use.

1.

Make sure the headlamp switch is in
the off position, then open the hood.

2. Remove the headlamp. See

Removing a Headlamp (page 155).

3. Disconnect the electrical connector by

squeezing the release tab and pushing
the connector forward, then pulling it
rearward.

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4. Remove the bulb assembly by turning

it counterclockwise and pulling it
straight out.

To install the new bulb, follow the removal
procedures in reverse order.

Replacing Front Parking Lamp and
Direction Indicator Bulbs

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1.

Make sure the headlamp switch is in
the off position, then open the hood.

2. Remove the headlamp assembly. Refer

to Replacing Headlamp Bulbs in this
section.

3. Rotate the bulb socket

counterclockwise and remove.

4. Carefully pry up the bulb straight out

of the socket.

To complete installation, follow the
removal procedures in reverse order.