Mechanics

GMC TRUCK FUSE PROBLEM

1990 GMC Truck

1990 GMC Truck V8

1990 gmc topkick where the back up light relay is located
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Chewyponce
May 3, 2010.




I don't think there is a relay, check for a bad ground/wire/ or fuse. If there was a relay it would be in teh panel with the rest of them. Also check for a bad switch

Hmac300
May 26, 2010.


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