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#1
09-14-2008, 12:32 PM
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87 gmc jimmy ecm
i have a 1987 gmc s-15 jimmy that keeps blowing the 20 amp lower right fuse truck will start and run for 1 min than blows fuse i see no visible frayed wires could it be something else besides the ecm ????
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#3
09-17-2008, 05:59 PM
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Re: 87 gmc jimmy ecm
it was bottom left marked ecm 1 this happend on a rainy nite i let truck sit 2 days and now it starts and runs!! thinking wire harness is letting water in?
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#4
09-17-2008, 06:33 PM
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Re: 87 gmc jimmy ecm
Might check the injector wiring under air cleaner adapter.
The sometimes get shorted or pinched there. Good Luck
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