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Old 09-24-2025, 05:55 PM   #12
RaTcheTmasTer
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Join Date: Jun 2009
Location: Pleasant Grove, in the Mountain West.
Posts: 361
Re: HELP 1991 GMC Jimmy Lost electrical power to fuel pump

Quote:
Originally Posted by Dead Parrot View Post
I would do a fuse check. Stuff that was working and now isn't but tests good points to open circuit somewhere. Fuse panel is a good start place. Fairly common for fuses to protect more things then what the panel label suggests. i.e. a blown headlight fuse might also supply the fuel pump relay control side.

Another thing to check is any fusible links.
That was it!! I checked the fuses.

Then I checked the wires on the alternator and the small wire was mostly broken and barely hangin on it.
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