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Old 12-05-2016, 09:25 PM   #12
John H.
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Join Date: Oct 2007
Location: Sammamish, WA
Posts: 2,115
Re: Temp Gauge Not Working

See if you can find an original one. I have tried sending units from NAPA that look identical to the originals, but they did not work like an original. Always showed it was hot.

If you find an original, I think they say AC delco 12 volt around the edge near the threads. In many years, I have not had a bad one in all my GM cars/trucks.
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