Page 46 of 312
Function Number of
bulbsTrade number
Headlamps
(aerodynamic)2 9007
Headlamps (sealed
beam)2 H6054
Park/turn 2 3157 AK
Sidemarker 2 194
Tail/stop/turn/sidemarker 2 3157 K
Backup 2 3156K
High-mount stoplamp 1 922
Foglamp 2 9145
License plate lamp 2 194
Cargo lamp 2 906
Roofmarker 5 194
Rear fender clearance* 4
(a)
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 dealer
* Dual rear wheels or if equipped.
(a)Replace entire lamp assembly; bulb is not serviceable.
Replacing headlamp bulbs (aerodynamic)
1. Make sure that the headlamp control is in the OFF position and open
the hood.
2. Disconnect the electrical connector from the bulb by pulling rearward.
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
46
Page 50 of 312
Replacing cargo lamp and high-mount brakelamp bulbs
1. Make sure the headlamp switch is
in the OFF position.
2. Remove the two screws and lamp
assembly from vehicle as wiring
permits.
3. Remove the bulb socket by
rotating counterclockwise.
4. Pull the bulb straight out of the
socket.
Replacing roof marker bulbs
1. Make sure the headlamp switch is
in the OFF position.
2. Remove the screw and lens from
the lamp assembly.
3. Pull the bulb straight out of the
socket.
Install the bulb(s) in reverse order.
Replacing foglamp bulbs (if equipped)
1. Make sure the headlamp switch is
in the OFF position.
2. Remove the bulb socket from the
foglamp by turning
counterclockwise.
3. Disconnect the electrical connector from the foglamp bulb.
Install the new bulb(s) in reverse order.
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Lights
50
Page 307 of 312

filter, specifications ........241, 283
recommendations ...................241
refill capacities ........................284
specifications ..................287, 291
Exhaust fumes ..........................129
F
Fail safe cooling ........................248
Fluid capacities .........................284
Foglamps .....................................42
Four-Wheel Drive vehicles .......144
description ..............................149
driving off road .......................151
electronic shift ................145, 149
indicator light .........................146
lever operated shift ................146
manual locking hubs ..............144
preparing to drive your
vehicle .....................................132
Fuel ............................................250
calculating fuel economy .......254
cap ...........................................252
capacity ...................................284
choosing the right fuel ...........252
comparisons with EPA fuel
economy estimates .................257
detergent in fuel .....................254
filling your vehicle with
fuel ...........................250, 252, 254
filter, specifications ........254, 283
fuel pump shut-off switch .....193
improving fuel economy ........254
octane rating ...................253, 291
quality ......................................253
running out of fuel .................254
safety information relating to
automotive fuels .....................250
Fuel pump shut-off switch .......193
Fuses ..................................194–195G
Garage door opener ....................55
Garage Door Opener
(see Homelink wireless control
system) ........................................64
Gas cap (see Fuel cap) ............252
Gas mileage
(see Fuel economy) .................254
Gauges .........................................16
transmission fluid
temperature gauge ...................20
GAWR (Gross Axle Weight
Rating)
calculating ...............................164
GVWR (Gross Vehicle Weight
Rating)
calculating ...............................164
H
Hazard flashers .........................193
Head restraints ...........................85
Headlamps ...................................41
aiming ........................................43
autolamp system .......................41
daytime running lights .............42
flash to pass ..............................43
high beam .................................43
replacing bulbs ...................46–47
turning on and off ....................41
Heating
heating and air conditioning
system .................................38–39
Homelink wireless control
system ..........................................64
Hood ..........................................237
I
Ignition ...............................125, 291
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
307
Page 308 of 312

Infant seats
(see Safety seats) .....................117
Inspection/maintenance (I/M)
testing ........................................259
Instrument panel
cleaning ...................................232
cluster ........................................12
lighting up panel and
interior .......................................43
J
Jump-starting your vehicle ......212
K
Keyless entry system .................82
autolock .....................................81
Keys
positions of the ignition .........125
L
Lamps
autolamp system .......................41
bulb replacement
specifications chart ..................45
daytime running light ...............42
fog lamps ...................................42
headlamps .................................41
headlamps, flash to pass ..........43
instrument panel, dimming .....43
interior lamps .....................44–45
replacing bulbs ...................45–51
Lane change indicator
(see Turn signal) ........................44
Lights, warning and indicator ....12
anti-lock brakes (ABS) ..........130
speed control ............................63
Load limits .................................161Loading instructions .................164
Locks
autolock .....................................81
childproof ..................................76
Lubricant specifications ...287, 291
Lug nuts ....................................211
Lumbar support, seats ...............90
M
Manual transmission .................140
fluid capacities ........................284
lubricant specifications ..........291
reverse .....................................141
Message center ...........................70
english/metric button ...............70
menu button .............................70
Mirrors .........................................54
fold away ...................................60
heated ........................................59
side view mirrors (power) .......59
Moon roof ....................................55
Motorcraft parts ................254, 283
O
Octane rating ............................253
Oil (see Engine oil) ..................239
Overdrive .....................................53
P
Parking brake ............................131
Parts (see Motorcraft parts) ....283
Pedals (see Power adjustable
foot pedals) .................................61
Power adjustable foot pedals .....61
2004 F250/350/450/550(f23)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
308