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Old July 1st, 2024, 01:51 AM
LordNatedawg LordNatedawg is offline
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Join Date: Sep 2019
Location: Sparks, Nevada
Truck: 1966 GMC 1500 Custom
Age: 25
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Default Re: "Papa Smurf" - 1966 GMC 1500 Custom

I FINALLY FOUND MY BLINKER PROBLEM!!!!!!

Decided to do some more diagnosis today. I needed to be able to recreate the issue. I ran my truck with no lights on for 30 minutes. Nothing. I turned on the blinkers one by one. Left - pause - off - pause - right - pause - repeat. No dice. Then I moved on to the reverse.

Reverse - pause- neutral - pause - repeat. Suddenly I heard a loud POP when I switched to reverse. I swapped the fuse out and repeated. R - N - R - N - R -POP!

I ohmed out my reverse switch and found that it was very intermittently shorting to itself, creating a dead short to ground when I shifted into reverse. Suddenly everything makes sense. When I initially started my rewire, I noticed that the PO had no reverse light bulbs and no pigtail on the reverse switch. He must've been having this same issue.

Just about drove myself crazy trying to track this one down. I absolutely despise intermittent electrical issues. But now it has been uncovered. I'm going to try and find a new switch that fits in the shifter base. Hopefully this is the end of this problem.
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