2008 FORD F250 open hood

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

•(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

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. Block the wheels.
•Manual transmission:
1. Set the parking brake, depress the clutch and place the gearshift in N
(Neutral).
2. Block the wheels.
Note:Do not start your engine with the air cleaner removed and do not
remove it while the engine is running.
OPENING THE HOOD
1. Inside the vehicle, pull the hood
release handle located under the
bottom left corner of the instrument
panel.
2. Go to the front of the vehicle and
release the auxiliary latch located
below the passenger side of the
grille, next to the headlamp. Slide
the handle to release the auxiliary
latch.
3. Lift the hood until the lift
cylinders hold it open.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
347

Note:Poor wiper quality can be improved by cleaning the wiper blades
and the windshield; refer toWindows and wiper bladesin the
Cleaningchapter.
Note:To prolong the life of the wiper blades, it is highly recommended
to scrape off the ice on the windshield before turning on the wipers. The
layer of ice has many sharp edges and can damage the micro edge of the
wiper rubber element.
ENGINE OIL
Checking the engine oil
Refer to thescheduled maintenance informationfor the appropriate
intervals for checking the engine oil.
1. Make sure the vehicle is on level ground.
2. Turn the engine off and wait a few minutes for the oil to drain into the
oil pan.
3. Set the parking brake and ensure the gearshift is securely latched in P
(Park) (automatic transmission) or 1 (First) (manual transmission).
4. Open the hood. Protect yourself from engine heat.
5. Locate and carefully remove the engine oil dipstick.
•5.4L/6.8L gasoline engines only;
for diesel engine information,
refer to the6.0 and 6.4 Liter
Direct Injection Turbo Diesel
Owner’s Guide Supplement.
2008 F-250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
351