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Dead Parrot · 09-15-2025, 04:16 PM

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.

09-15-2025, 04:16 PM	#5
Dead Parrot Registered User Join Date: Aug 2012 Location: Oklahoma City, OK Posts: 2,809	Re: HELP 1991 GMC Jimmy Lost electrical power to fuel pump 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.