F-250 Light Duty (1999 year). Manual — part 51

• Tail lamps
• Back-up lamps
Do not remove lamp bulbs unless they can be replaced immediately with
new ones. If a bulb is removed for an extended period of time,
contaminants may enter the lamp housings and affect lamp performance.

Replacing headlamp bulbs (aerodynamic)

Handle a halogen headlamp bulb carefully and keep out of
children’s reach. Grasp the bulb only by 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.

1. Make sure that the headlamp control is in the OFF position.

2. Open the hood.

3. Release clip and disconnect the electrical connector from the bulb.

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 out of headlamp assembly.

6. Insert the glass end of the new bulb into the headlamp assembly.
When the grooves in the plastic base are aligned, push the bulb into the
lamp assembly until the plastic base contacts the rear of the lamp
assembly.

7. Install bulb retaining ring over the plastic base and lock the ring into
the socket by turning it clockwise until you feel a “stop.”

8. Connect the electrical connector into the rear of the plastic base until
it “snaps.”

Maintenance and care

204

Replacing headlamp bulbs (sealed beam)

To remove the headlamp bulb:

1. Make sure headlamp switch is in OFF position.

2. Open the hood.

3. Remove the two screws and
parking lamp/side marker assembly
by pulling gently

4. Disconnect the electrical
connectors from the parking
lamp/side marker assembly and
remove.

5. Remove the four bolts and
headlamp bezel.

6. Remove the four screws and the
headlamp retaining ring from
headlamp.

7. Disconnect the electrical
connector and remove headlamp.

To install the new headlamp, reverse the removal procedure.

Maintenance and care

205

Replacing tail lamp/Backup lamp bulbs

The tail lamp/backup lamp bulbs are
located in the same portion of the
tail lamp assembly, 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 from the
tail lamp assembly.

3. Carefully pull the lamp assembly
from the tailgate pillar by releasing
the two retaining tabs.

4. Twist the bulb socket

1

⁄

4

turn counterclockwise and remove from lamp

assembly.

5. Pull the bulb straight out of the socket and push in the new bulb.

6. Install bulb socket in lamp assembly by turning clockwise.

7. Carefully install the tail lamp assembly on tailgate pillar snapping the
two retaining tabs into place.

8. Secure the tail lamp with two screws.

High-mount brakelamp bulbs

To remove the brakelamp assembly:

1. Remove the two screws and lamp
assembly from vehicle as wiring
permits.

2. Remove the bulb socket by
rotating counterclockwise and
pulling it out of the lamp assembly.

3. Pull the bulb straight out of the
socket and push in the new bulb.

Maintenance and care

206

To install the brakelamp assembly:

1. Install the bulb into the lamp assembly and rotate clockwise.

2. Install the lamp assembly on the vehicle with two screws.

Replacing license plate lamp bulbs

The license plate bulbs are located
behind the rear bumper. To change
the license plate lamp bulbs:

1. Reach behind the rear bumper to
locate the bulb.

2. Twist the bulb socket
counterclockwise

1

⁄

4

turn and

carefully pull to remove it from the
lamp assembly.

3. Pull out the old bulb from the
socket and push in the new bulb.

4. Install the bulb socket in lamp assembly by turning it clockwise.

Using the right bulbs

Function

Number of

bulbs

Trade number

Headlamps (aerodynamic)

2

9007

Headlamps (sealed beam)

2

H6054

Park/turn

2

3157

Sidemarker

2

194

Tail/stop/turn/sidemarker

2

3157 K

Backup

2

3156K

High-mount stoplamp

1

921

Cargo lamp

2

906

Roofmarker

5

194

Rear fender clearance

4

(a)

Rear identification

3

194

To replace all instrument panel lights - see your dealer

(a)

Replace entire lamp assembly; bulb is not serviceable.

Maintenance and care

207