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I keep popping fuses when on rough roads

Tiny
JSCROSIER
  • MEMBER
  • 1989 GMC C1500
Mileage:201,325 I have a 1989 GMC 1500 which has been popping 10 AMP ECM fuses. The problem has been intermittent during operation but seems to happen more often during rough terrain. What could be some possible problems? Thanks for your help! J.
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Monday, October 10th, 2011 AT 8:38 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
There's a short circuit somewhere could be a wiring or components that the ECM fuse powers, could very well be the computer who knows-
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Monday, October 10th, 2011 AT 8:51 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
You need a wiring diagram of what is on that circuit and check each component for failure. The first I would do is unplug the ecm and see if it still happens.

Roy
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Monday, October 10th, 2011 AT 8:52 PM

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