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2004 GMC Sierra 1500 Pickup Support Question

2004 GMC Sierra 1500 Pickup Support Question

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Question posted by haleyjosh258 on November 19th, 2016

Pcm 1 Fuse Keeps Blowing

What causes pcm 1 and trl b/u fuse to keep blowing in a 2004 gmc sierra 1500

Current Answers

Answer #1: Posted by waelsaidani1 on November 20th, 2016 6:27 PM
waelsaidani1

Member since:
May 12th, 2013

Points: 19,501,797
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Check the wire harness that goes to the left side oxygen sensor fell out of its hold down and into the drive shaft severing two wires in half.

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