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Old 03-29-2017, 12:09 AM   #3
Steeveedee
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Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,932
Re: How to test an uninstalled temp gauge? '70 C10

IIRC, the instruments use 3 Volts. Do you have a Chassis Service Manual? I do, but for a '72, though I think that the gauges are the same in that range of years. I'll take a look at it tomorrow, if you don't have an answer before that.
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'70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper

Simi Valley, CA
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