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rear view mirror temp gauge inop


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davemisto
12-12-2004, 01:42 PM
i have a 2000 gmc sierra 1500, the temp gauge on my rearview mirror says OC the compass works fine, anybody have any ideas whats going on??
dslksl
12-12-2004, 05:17 PM
Check your thermocouple. It's behind the grill. It's about 2.5 inches long.

Sounds like the wires came loose or it went bad.
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