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Old 12-28-2008, 07:08 PM   #1
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Default f-150 tail light problem

I own a 91 f-150. The rear tail lights (including blinkers and back up) stopped working. Fuses are o k and bulbs too. Anyone got an idea on how to fix it? thanks, jim
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Old 12-28-2008, 07:41 PM   #2
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I would get a multi-meter and check for voltage at the bulb sockets. If you do not have voltage, then I would suggest tracing the wiring from the tail light assemblies forward. You're most likely gonna find a short somewhere.
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Old 12-29-2008, 11:41 AM   #3
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Suggest looking for a bad ground. Power to bulbs, come from different circuits, but use a common ground. Black wire is ground on Ford systems.
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