2008 FORD F250 lights

To adjust the headlamps:
1. Park your vehicle on a level
surface about 25 feet (7.6 meters)
away from a vertical plain surface
(3). Check your headlamp alignment
at night or in a dark area so that
you can see the headlamp beam
pattern.
•(1) 8 feet (2.4 meters)
•(2) Center height of lamp to
ground
•(3) 25 feet (7.6 meters)
•(4) Horizontal reference line
•(5) Center of headlamps
•(6) Center line of the vehicle
2. The center of the headlamp is marked either on the lens (a circle or
cross marker) or on the bulb shield, internal to the lamp (mark or
feature). Measure the height from the center of your headlamp to the
ground (2) and mark an 8 foot (2.4 meter) long horizontal line on the
wall or screen (1) at this height (masking tape works well).
3. Turn on the low beam headlamps
and open the hood.
4. Locate the high intensity area of
the beam pattern and place the top
edge of the intensity zone even with
the horizontal reference line (4). If
the top edge of the high intensity
area is not even with the horizontal
line, follow the next step to adjust
it.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
88

5. Locate the vertical adjuster (2)
for each headlamp. Adjust the aim
by turning the adjuster control
either clockwise (to adjust up) or
counterclockwise (to adjust down).
6. In addition to the horizontal line
marked in step 2, a pair of vertical
lines (5) must be marked at the
center line of the headlamps on the
wall or screen.
7. On the wall or screen, locate the high intensity area of the beam
pattern. The left edge of the high intensity area should be even with the
vertical line corresponding to the headlamp under adjustment. If the left
edge of the high intensity area is not even with the vertical line, follow
the next step to adjust it.
8. Locate the horizontal adjuster (1) for each headlamp. Turn it
clockwise or counterclockwise, to place the left edge of the high
intensity area even with the vertical line corresponding to the headlamp
under adjustment.
Vertical aim adjustment (aerodynamic headlamps)
The headlamps on your vehicle can only be vertically adjusted. Your
vehicle does not require horizontal aim adjustments.
To adjust the headlamps:
1. Park the vehicle directly in front of a wall or screen on a level surface,
approximately 25 feet (7.6 meters) away.
•(1) 8 feet (2.4 meters)
•(2) Center height of lamp to ground
•(3) 25 feet (7.6 meters)
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
89

•(4) Horizontal reference line
2. Measure the height from the
center of your headlamp (indicated
by a 3.0 mm circle on the lens) to
the ground and mark an 8 foot (2.4
meter) horizontal reference line on
the vertical wall or screen at this
height (a piece of masking tape
works well).
3. Turn on the low beam headlamps
to illuminate the wall or screen and open the hood. Cover one of the
headlamps so no light from that lamp hits the wall.
4. On the wall or screen you will
observe a light pattern with a
distinct horizontal edge towards the
right. If this edge is not at the
horizontal reference line, the beam will need to be adjusted so the edge
is at the same height as the horizontal reference line.
5. Locate the vertical adjuster on
each headlamp, then use a E5 Torx
socket to turn the adjuster either
counterclockwise (to adjust down)
or clockwise (to adjust up) aligning
the upper edge of the light pattern
up to the horizontal line.
6. Repeat Steps 3–5 for the other
headlamp.
7. Close the hood and turn off the
lamps.
TURN SIGNAL CONTROL
•Push down to activate the left
turn signal.
•Push up to activate the right turn
signal.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
90

MAP LAMPS (IF EQUIPPED)
The dome lamp turns on when:
•any door is opened,
•the instrument panel dimmer
switch is rotated up until the
courtesy lamps come on, and
•any of the remote entry controls
are pressed and the ignition is
OFF.
BULBS
Headlamp condensation
The headlamps are vented to equalize pressure. When moist air enters
the headlamp(s) through the vents, there is a possibility that
condensation can occur. This condensation is normal and will clear
within 45 minutes of headlamp operation.
Using the right bulbs
Check the operation of all the bulbs frequently.
Replacing exterior bulbs
Check the operation of all the bulbs frequently.
Function Number
of bulbsTrade number
Headlamps (aerodynamic) 2 H13/9008
Headlamps (sealed beam) 2 H6054
Park lamp with aerodynamic headlamp 2 3157A or 3157AK
Park lamp with sealed beam headlamp 2 4157K/3157
Sidemarker 2 194
Tail/stop/turn/sidemarker (Pick-up only) 2 4157K or 3157
Tail/stop/turn/sidemarker (Chassis cabs
only; if equipped)2 3157
Back-up (Pick-ups only) 2 3156 or 3156K
Back-up (Chassis cabs only) 2 3157
High-mount stoplamp 1 922
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
91

Function Number
of bulbsTrade number
Foglamp 2 9145
License plate lamp 2 194
Cargo lamp 2 906
Mirror turn signal 2 2825
Mirror clearance lamp 2 2825
Front clearance lamps (2) and Front
identification lamps (3)5 194
Rear fender clearance* 4 W5W
Interior visor lamp (if equipped) 4 194
Rear identification 3 194
All replacement bulbs are clear in color except where noted.
To replace all instrument panel lights - see your authorized dealer
* Dual rear wheels, or if equipped.
Replacing headlamp bulbs (aerodynamic)
1. Make sure that the headlamp control is in the off position and open
the hood.
2. Remove the four bolts from the
top, side and bottom front of the
headlamp assembly.
3. Pull the assembly straight out
disengaging two snap clips to
fender.
4. Disconnect the electrical
connector by squeezing the release
tab and pushing the connector
forward and then pulling it
rearward.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
92

5. Remove the bulb assembly by
turning it counterclockwise and
pulling it straight out.
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.
Install the new bulb(s) in reverse order.
Replacing park/turn and sidemarker lamp bulbs (aerodynamic)
1. Make sure that the headlamp control is in the off position and open
the hood.
2. Remove the four bolts from the
top, side and bottom front of the
headlamp assembly.
3. Pull the assembly straight out.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
93

4. Remove the bulb assembly, (1)
sidemarker or (2) park/turn by
turning it counterclockwise and
pulling it straight out.
5. Pull the old bulb out from the
socket.
Install the new bulb(s) in reverse order.
Replacing headlamp bulbs (sealed beam)
1. Make sure that the headlamp control is in the off position and open
the hood.
2. Remove the three screws and one
bolt from the top and bottom of the
park lamp/bezel assembly.
3. Remove the four screws and the
headlamp retaining ring from
headlamp.
4. Disconnect the electrical
connector from the headlamp.
Install the new bulb(s) in reverse order.
Replacing park/turn/sidemarker bulbs (sealed beam)
1. Make sure that the headlamp control is in the off position and open
the hood.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
94

2. Remove the three screws and one
bolt from the top and bottom of the
park lamp/bezel assembly.
3. Pull the assembly straight out
disengaging snap clip.
4. Remove the bulb assembly,
sidemarker or park/turn by turning
it counterclockwise. (Top view of
assembly shown.)
5. Pull the old bulb out from the
socket.
Install the new bulb(s) in reverse order.
Replacing brake/tail/turn/back-up lamp bulbs - Pick-ups only
1. Make sure the headlamp switch is
in the off position and then open
the tailgate to expose the lamp
assemblies.
2. Remove the two bolts from the
tail lamp assembly and carefully pull
the lamp assembly from the tailgate
pillar by releasing the two retaining
tabs.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Lights
95