1999 FORD F250 SUPER DUTY bulb

WARNING LIGHTS AND CHIMES
Low fuel
Illuminates as an early reminder of a
low fuel condition indicated on the
fuel gauge. The light comes on when
there is approximately 1/16th of a
tank indicated on the fuel gauge
(refer toFuel Gaugein this chapter for more information). The ignition
must be in the ON position for this lamp to illuminate. The lamp will also
illuminate for several seconds after the ignition is turned to the ON
position regardless of the fuel level.
Service engine soon (Federal only)
Your vehicle is equipped with a
computer that monitors the engine’s
emission control system. This
system is commonly known as the
On Board Diagnostics System (OBD
I). This OBD I system protects the
environment by ensuring that your vehicle continues to meet
government emission standards. The OBD I system also assists the
service technician in properly servicing your vehicle.
TheCheck Engine/Service Engine Soonindicator light illuminates
when the ignition is first turned to the ON position to check the bulb. If
it comes on after the engine is started, one of the engine’s emission
control systems may be malfunctioning. The light may illuminate without
a driveability concern being noted. The vehicle will usually be drivable
and will not require towing.
0
000000000
MPH20km/h
406080
100
120
140
160
010 20304050
60
70
80
90
100
LOW
FUEL
DOOR
AJAR BRAKE
LOW
RANGE
4 X 4
!ABS+ -
LEF
H
RPM1000X0123
5
6 4
PRN 218C 18
H
D
FUEL FILL
SERVICE
ENGINE
SOON
LOW
FUEL
SERVICE
ENGINE
SOON
Instrumentation
8

What you should do if the Check Engine/Service Engine Soon light
illuminates
Light turns on solid:
This means that the OBD I system has detected a malfunction.
Temporary malfunctions may cause yourService Engine Soonlight to
illuminate. Examples are:
1. The vehicle has run out of fuel. (The engine may misfire or run
poorly.)
2. Poor fuel quality or water in the fuel.
These and other temporary malfunctions can be corrected by filling the
fuel tank with good quality fuel. After three driving cycles without these
or any other temporary malfunctions present, theCheck Engine/Service
Engine Soonlight should turn off. (A driving cycle consists of a cold
engine startup followed by mixed city/highway driving.) No additional
vehicle service is required.
If theCheck Engine/Service Engine Soonlight remains on, have your
vehicle serviced at the first available opportunity.
Under engine misfire conditions, excessive exhaust temperatures
could damage the catalytic converter, the fuel system, interior
floor coverings or other vehicle components, possibly causing a fire.
Service engine soon (California only)
Your vehicle is equipped with a
computer that monitors the engine’s
emission control system. This
system is commonly known as the
On Board Diagnostics System (OBD
II). This OBD II system protects the
environment by ensuring that your vehicle continues to meet
government emission standards. The OBD II system also assists the
service technician in properly servicing your vehicle.
TheService Engine Soonindicator light illuminates when the ignition is
first turned to the ON position to check the bulb. If it comes on after the
engine is started, one of the engine’s emission control systems may be
malfunctioning. The light may illuminate without a driveability concern
being noted. The vehicle will usually be drivable and will not require
towing.
SERVICE
ENGINE
SOON
Instrumentation
9

Turn signal
Illuminates when the left or right
turn signal or the hazard lights are
turned on. If one or both of the
indicators stay on continuously or
flash faster, check for a burned-out
turn signal bulb. Refer toExterior bulbsin theMaintenance and care
chapter.
High beams
Illuminates when the high beam
headlamps are turned on.
Charging system
Illuminates when the ignition is
turned to the ON position and the
engine is off. The light also
illuminates when the battery is not
charging properly, requiring
electrical system service.
Four wheel drive low (if equipped)
This light momentarily illuminates
when the ignition is turned to ON.
Illuminates when four-wheel drive
low is engaged. If the light continues
to flash have the system serviced.
Four wheel drive indicator (if equipped)
This light momentarily illuminates
when the ignition is turned to ON.
Illuminates when 4x4 range is
engaged.
LOW
RANGE
4x4
Instrumentation
12

sells, leases, trades vehicles, or supervises a fleet of vehicles are not
permitted to intentionally remove an emission control device or prevent
it from working. Information about your vehicle’s emission system is on
the Vehicle Emission Control Information Decal located on or near the
engine. This decal identifies engine displacement and gives some tune up
specifications.
Please consult your “Warranty Guide” for complete emission warranty
information.
Readiness for Inspection/Maintenance (I/M) testing
In some localities, it may be a legal requirement to pass an I/M test of
the on-board diagnostics system. If your “Check Engine/Service Engine
Soon” light is on, refer to the description in theWarning Lights and
Chimessection of theInstrumentationchapter. Your vehicle may not
pass the I/M test with the “Check Engine/Service Engine Soon” light on.
If the vehicle’s powertrain system or its battery has just been serviced,
the on-board diagnostics system is reset to a “not ready for I/M test”
condition. To ready the on-board diagnostics system for I/M testing, a
minimum of 30 minutes of city and highway driving is necessary as
described below:
•First, at least 10 minutes of driving on an expressway or highway.
•Next, at least 20 minutes driving in stop-and-go, city-type traffic with
at least four idle periods.
Allow the vehicle to sit for at least eight hours without starting the
engine. Then, start the engine and complete the above driving cycle. The
engine must warm up to its normal operating temperature. Once started,
do not turn off the engine until the above driving cycle is complete.
EXTERIOR BULBS
Replacing exterior bulbs
Check the operation of the following lamps frequently:
•Headlamps
•High-mount brakelamp
•Brakelamps
•Turn signals
•License plate lamp
Maintenance and care
203

•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
14
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
14turn 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
14turn 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
bulbsTrade 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