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GMC Forum: why does my fuel injector fuse burn out on 1993 gmc jimmy?
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Old 10-16-2010, 05:08 AM
vaa sio vaa sio is offline
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Join Date: Oct 2010
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Default why does my fuel injector fuse burn out on 1993 gmc jimmy?

I have a 1993 GMC Jimmy and my fuel injector fuse keeps burning out and then the car will stop running, until i replace the fuse. I already replaced the fuse three times..
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Old 10-18-2010, 07:51 PM
Vacdaddyt Vacdaddyt is offline
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Location: South east MN
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Default fuse blowing.

If this is a 4.3, check to see if the fuel injector wires are pinched where they go through the collar that surrounds the throttle body. Next ohm out the injectors, there is two, to see if they are within specifications. Somewhere around 12-15 ohms.Also check to see if the wires are rubbing elsewhere in the engine compartment. There might be other things that could go wrong but this is a start.
Let us know how it turns out.
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