1993 GMC Sierra blowing fuses

Tiny
MAC473
  • MEMBER
  • 1993 GMC SIERRA
  • V8
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
When lights turned on the fuse for tail/brake
lights blows. Sounds like water under the
dash. Already checked the air conditioner
flow tube
Friday, January 2nd, 2009 AT 12:57 PM

1 Reply

Tiny
BUDDYCRAIGG
  • MECHANIC
  • 2,262 POSTS
Obviously you have a short to ground somewhere.

You're going to have to start checking all of the wires involved with the parking lights and dash lights.

Unplug everything and then plug things in one at a time until you blow the fuse again. That will probably be the bad circuit.

A tester like this can be really helpful in these situations.
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Saturday, January 3rd, 2009 AT 12:58 AM

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