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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Dim tail light... is it a bad ground?

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Old Nov 2, 2003 | 09:36 AM
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Dim tail light... is it a bad ground?

The left rear tail light on my '83 F100 LWB is dim. I understand this can be caused by a bad ground. Where would I find the ground and how would I check it?
 
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Old Nov 2, 2003 | 06:35 PM
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From: oxon hill, MD U.S.A
under the bed closest to the bumper check the trailer hook ups thats was my problem a faulty adapter
 
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Old Nov 2, 2003 | 09:28 PM
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My 83 F-350 has all the wiring connections on the left side right in front of the rear bumper. A good place to start. If you can ran a jumper from a good ground to the ground on the light and that should tell you if you have a grounding problem.
 
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Old Nov 4, 2003 | 08:01 PM
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Sometimes it is best to check the simple things first. I checked the bulb and it had turned a milky white instead of being transparent. I replaced the bulb and bingo... everything is fine now.
 
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Old Nov 4, 2003 | 09:07 PM
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From: lino lakes, mn
there is a ground wire right in side the tail opening in the bot chech it and clean the socket and the two metal stripps inside the socket change the bulb while ya got it apart
 
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