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Old 10-03-2012, 08:02 PM   #11
GMCJOE
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Join Date: Aug 2012
Location: Junction City, KS
Posts: 782
Re: Brake light question

I would go with grounds right now, cause that what it sounds like. Work your way to replacing parts. How long has this been going on since you have had the truck?

Though, I would say if you had an extra light switch to try it before going thru all the grounds. A bad light switch was causing some funky issue with mine, I just happened to have an extra one that came with the truck as parts. I got lucky and didn't have to chase wires. Let me tell you, there is some funny stuff they did under the dash. Clean, but funky. None of my lights work till I turn the ignition on. So, good luck if you have to deal with something like I have going. I picked up a wiring harness out of a 71 recently for $75. Nothing chopped up. So, if you have to resort to a dash wiring harness I hope you have the same luck.
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1969 GMC SWB-350 SBC 700R4
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