FORD 1998 F-150 - Manual (Page 192)

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
• foglamps (if equipped)
• high-mount brakelamp
• brakelamps
• turn signals
• license plate lamp
• 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.
Maintenance and care
192