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Re: AAW 67-68 Classic Update warning lights didn't work properly
Quote:
Originally Posted by rhstewart
Hi,
New here. I have my father-in-laws '67 C20 I've been fixing up. I put in a new American Auto Wire Classic Update wire harness for the warning lights only dash. I noticed that the warning lights weren't working properly and finally dove into why. They wouldn't light up when starting the truck.
I proved the water temp and oil pressure sensors worked by grounding them out and fixing connections.
Tracing the problem I noticed that the ground wires through the ignition switch were missing. They didn't seem to be part of the wire harness at all which seemed awfully strange. Possibly a mistake?
I was a pack rat and kept the old harness wiring. I pulled the ignition switch wiring and spliced it onto the end of the gauge harness wire the into the ignition switch and the gauge harness. I'll post a couple of photos below.
Works like a champ. Hopefully this is helpful.
I'm curious if anyone else found the classic update harness without the ignition switch ground wires.
Cheers,
Rich
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That's great.
Here in Arizona we have real Pack Rats and they love to nest in engine bays and chew up the wiring. 
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Every 25 years I like to rebuild that 292, whether it needs it or not.
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