An illuminated Check Engine Light could indicate that one or more of the ignition coils has failed due to excessive spark plug gap. To fix this problem, the ignition coils that have failed, the spark plugs, and all coil boots should be replaced.
Resources for the Repair and Maintenance of your 2003 Ford F-150 Lightning
2003 Ford F-150 Lightning
2003 Ford F-150 Lightning Problems
2003 Ford F-150 Lightning Recalls (Recent)
RepairPal Expert Overview:
The courtesy lamps on affected running boards may overheat when exposed to moisture and road salt. Overheating may cause the lamps and boards to melt or start a fire. Dealers will replace the wiring harness for these running boards.
Summary: ON CERTAIN PICKUP TRUCKS, PASSENGER VEHICLES, SPORT UTILITY VEHICLES, AND MOTOR HOMES CHASSIS, THE SPEED CONTROL DEACTIVATION SWITCH MAY, UNDER CERTAIN CONDITIONS, LEAK INTERNALLY AND THEN OVERHEAT, SMOKE, OR BURN.Learn more »
2003 Ford F-150 Lightning Questions and Answers
My truck stalls during reverse. It drives fine, but when I shift to reverse it stalls. It happens every now and then. What is causing this and how can I fix it?
what is p1000 incomplete obt and p0234 engine overboost condition and how do i repair the problem? When in on the freeway and i give it speed, my service engine soon light starts to flash and when ...
Bulbs ok. Fuses ok.
My 2003 lightning has a high pitch whistling noise(sounds like a tea kettle) coming from behind the supercharger a little to the right. It only does it idling or when im at a steady speed but when ...