wacky gas guage


Old 07-25-05, 02:01 PM
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Join Date: Dec 2004
Posts: 19
wacky gas guage

hello, nice to be back w/ u guys i have a 99 chevy s10 pickup 4cyl.
when ever i start the vehicle, the gas guage will go from f to e back to f to half tank mark and continue i'm never sure how much gas i have. could this be a bad sender in the tank or a relay problem, or a bad ground. its got me ?? i tried the gas cap stuff didn't work. any help would be greatly appreciated
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Old 07-25-05, 03:08 PM
Join Date: Nov 2003
Location: NY
Posts: 86
Most likely it's a bad sender. I know on some cars, if you ground the sender wire, the gauge will read full. Look in a manual to see how to test the gauge and wiring.
Old 07-25-05, 03:13 PM
Thread Starter
Join Date: Dec 2004
Posts: 19
wacky gas guage,

thanks for your response, but if i ground the sender and the guage goes to full. that would mean what? a bad sender

Old 07-26-05, 02:57 PM
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Join Date: Mar 2003
Location: Southeastern Connectitax
Posts: 167
You could just record miles and put in gas when it hits a certain amount of miles. Years ago I had an 86 S-10 that read 3/8 tank when it was full and had to do this so I knew when to put in gas.

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