I keep popping fuses when on rough roads

1989 GMC C1500
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JSCROSIER
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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.
Oct 10, 2011 at 8:38 PM
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RASMATAZ
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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-
Oct 10, 2011 at 8:51 PM
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ASEMASTER6371
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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
Oct 10, 2011 at 8:52 PM
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