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Old 04-08-2012, 03:57 PM
Join Date: Apr 2012
Posts: 1
Default fuel gauge problem

Hi I'm new this is my first post here. I just naught a 94 Chevy c1500 changed the fuel pump and everything was fine. About a day later I was driving and the gauge jumped from 1/4 tank to 1/2 tank and hasn't moved since. Not sure where to start on this any help is much appreciated thanks.
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Old 04-08-2012, 11:32 PM
Pickup Man's Avatar
Join Date: Mar 2012
Location: Colorado
Posts: 36

My fuel gauge jumps all over the place, whenever it feels like it. I was told it was my sending unit, and since it's part of the fuel pump, and the fuel pump is in the tank, I have learned to live with it. I'm guessing you may have the same issue, or an issue with the gauge itself.

2001 GMC Sierra 1500HD/Sunset Orange Metallic

You can set my truck on fire, and roll it down a hill, and I still wouldn't trade it for a Coupe DeVille.
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Old 04-09-2012, 08:23 AM
Diesel Dan's Avatar
Senior Member
Join Date: Mar 2012
Location: Warren, Ohio
Posts: 190

The two things that could cause this are the gauge itself and sending unit. If you had a broken wire or shorted wire the gauge would read either full or empty, not stick in the middle. The '94 model was still able to change just the pump and not the whole unit(module) correct? If so I also concur with Pickup Man that the sending unit is the most probable cause.

At least it is fairly easy to get the fuel pump out of those trucks, if you pull the box off.
2000 Chevy K3500
CC/LB/SRW 4x4 6.5TD
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Old 04-09-2012, 08:23 AM

2001, 94, chevy, erratic, fuel, gas, gauge, gmc, guage, jumps, problem, pump, sierra, silverado, truck, working

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