1998 FORD EXPEDITION maintenance

Replacing parking lamp/turn
signal bulbs
1. Remove screw from the top of
lamp assembly.
2. Disengage lamp assembly (it has
a snap fit).
3. Remove the electrical connector
from the bulb by grasping the wire
and pulling it rearward.
4. Remove bulb retainer ring by
turning it counterclockwise about
1/4 turn, then slide the ring off the
plastic base.
5. Without turning, carefully pull
bulb assembly out of parking lamp
assembly.
6. Insert the glass end of the new
bulb into the parking lamp
assembly socket. When the grooves
in the plastic base are aligned,
push the bulb into the socket until
the plastic base contacts the rear
of the socket.
7. Slip bulb retaining ring over the
plastic base and lock the ring into
the socket by turning it clockwise
until you feel a ªstop.º
8. Push the electrical connector
into the rear of the plastic base
until it ªsnaps.º
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189

9. Align top and bottom ribs of
parking lamp assembly with
corresponding slots on front of
vehicle.
10. Push gently until parking lamp
assembly seats (you will hear a
snap).
11. Replace screw removed in
step 1.
Replacing foglamp bulbs
1. Disconnect the electrical
connector from the back of the
foglamp assembly.
2. Twist, then pull the bulb from
the foglamp assembly.
3. Install the new bulb.
4. Connect the electrical connector
to the back of the foglamp
assembly.
High-mount brakelamp
To change the high-mount
brakelamp bulbs:
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190

1. Remove the four screws that
secure the high-mount brakelamp
lens.
2. Carefully remove the lens.
3. Each of the three bulbs may be
removed with a
1¤4turn
counterclockwise and a careful
pull.
4. Replace the bulbs as needed and
replace the high-mount brakelamp
lens.
Replacing tail lamp/backup
lamp bulbs
The tail lamp/backup lamp
assemblies are located in the same
portion of the vehicle rear, one just
below the other. Follow the same
steps to replace either bulb:
1. Open the liftgate to expose the
lamp assemblies.
2. Remove the two screws at the
top of the lens.
3. Carefully pop the lens off and to
the right (it may be necessary to
use a screwdriver to remove the
lens).
4. Twist the connector
1¤4turn
counterclockwise and pull it out
for replacement.
5. Pull the bulb straight out of the
recess and replace it.
6. Replace the lens and secure the
two screws.
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191

Replacing license plate lamp
bulbs
The license plate bulbs are located
under and behind the rear bumper.
To change the license plate lamp
bulbs:
1. Reach under and behind the
rear bumper to locate the bulb
connector.
2. Twist the connector
counterclockwise
1¤4turn and
carefully pull to remove it.
3. Pull out the old bulb and press
in the replacement bulb.
4. Replace the connector by
placing it back into the assembly
and turning it
1¤4turn clockwise.
Using the right bulbs
Function Number of bulbs Trade number
Headlamps 2 9007
Front park/turn lamps 2 3157NAK
Front sidemarker 2 194NA
Foglamps 2 899
Turn/tail/brake lamps 2 3157K
Liftgate lamp 2 916
Backup lamp 2 579
License lamp 2 168
High-mount brake
lampSee a dealer or qualified service technician
To replace all instrument panel lights - see your dealer
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192

REPLACING THE INTERIOR
BULBS
Check the operation of the
following interior bulbs frequently:
²interior overhead lamp
²map lamp
Map lamps
To change the map lamp bulbs:
1. Use a small screwdriver to
remove the map lamp lens.
2. To remove the old bulb, twist
1¤4
turn and pull it out.
3. Twist in a new bulb.
4. Press the map lamp lens back
on and test the lamp operation.
AIMING THE HEADLAMPS
The alignment of your headlamps
should be checked by a qualified
service technician if:
1. Oncoming motorists frequently
signal you to deactivate your high
beams, and your high beams are
not activated.
2. The headlamps do not seem to
provide enough light for clear night
vision.
3. The headlamp beams are
pointed substantially away from a
slightly down and to the right
position.
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193

CLEANING AND CARING FOR
YOUR VEHICLE
Refer to the ªCustomer Assistance
Guideº for a list of Ford-approved
cleaners, polishes and waxes.
Washing your vehicle
Wash your vehicle regularly with
cold or lukewarm water. Never use
strong detergents or soap. If your
vehicle is particularly dirty, use a
quality car wash detergent. Always
use a clean sponge, washing glove
or similar device and plenty of
water for best results. To avoid
spots, avoid washing when the
hood is still warm, immediately
after or during exposure to strong
sunlight.
During winter months, it is
especially important to wash the
vehicle on a regular basis. Large
quantities of dirt and road salt are
difficult to remove and also cause
damage to the vehicle. Remove any
exterior accessories, such as
antennas, before entering a car
wash.
After washing, apply the brakes
several times to dry them.
Waxing your vehicle
Wax when water stops beading on
the surface. This could be every
three or four months, depending
on operating conditions.
Use only carnauba or
synthetic-based waxes. Remove
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194

any bugs and tar before waxing
vehicle. Use cleaning fluid or
alcohol with a clean cloth to
remove. Use tar remover to
remove any tar spots.
Repairing paint chips
Minor scratches or paint damage
from road debris may be repaired
with touch-up, paint repair foil or
aerosol paint spray from the Ford
accessory line. Observe the
application instructions on the
products.
Remove particles such as bird
droppings, tree sap, insect
remains, tar spots, road salt and
industrial fallout immediately.
Cleaning the wheels
Wash with the same detergent as
the body of your vehicle. Do not
use acid-based wheel cleaners,
steel wool, fuel or strong
detergents. Never use abrasives
that will damage the finish of
special wheel surfaces. Use a tar
remover to remove grease and tar.
Cleaning the engine
Engines are more efficient when
they are clean because grease and
dirt buildup keep the engine
warmer than normal. When
washing:
²Take care when using a power
washer to clean the engine. The
high pressure fluid could
penetrate the sealed parts and
cause damage.
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195

²Do not spray with cold water to
avoid cracking the engine block
or other engine components.
²Cover the highlighted areas to
prevent water damage when
cleaning the engine.
²Never wash or rinse the engine
while it is running; water in the
running engine may cause
internal damage.
Cleaning plastic exterior parts
Use vinyl cleaner for routine
cleaning. Clean with a tar remover
if necessary. Do not clean plastic
parts with thinners, solvents or
petroleum-based cleaners.
Cleaning the exterior lamps
Wash with the same detergent as
the exterior of your vehicle. Use
glass cleaner or tar remover if
necessary.
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196