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Topic: Gas gauge

in Forum: C4 Fuel, Emission Control, and Exhaust Systems


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Gas gauge (1/4)
 8/6/20 10:40am
manchester
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Equinunk, PA - USA

Vette(s):
1993 LT1 convertible triple black 4L60 2003 Zo6 Electron/Black 6 sp


Joined: 11/12/2017
Posts: 57

Hi, My 93 gas gauge stays on full after a complete fill up. Drove over 200 miles with no change. Added Techron in the tank and drove a while with no change. Any ideas Please? Thanks. 

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Re: Gas gauge (2/4)
 8/9/20 11:12am
Hockeyjeff85Vett
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Lake Grove, NY - USA

Vette(s):
1985 coup , Black ,Auto, 85000 miles , wanted an 85 for its the year i graduated high school , needs work sat for a while but its what i wanted , love restoration , did the restoration work on my fathers 1971 Vett


Joined: 6/8/2020
Posts: 6

sounds like your sending unit/float is either stuck or took a crap , they are real easy to get at , the whole unit comes rite out , its just under the gas fill door some real good u tube vids on it , good luck !

Re: Gas gauge (3/4)
 8/11/20 3:06pm
jay54flyer
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Fairfield, OH - USA

Vette(s):
1992 Bright Aqua Metallic, 6-speed coupe


Joined: 11/6/2019
Posts: 3

I had the same problem on my '92 and as HockeyJeff suggests replacing the sending unit fixed the problem.

Re: Gas gauge (4/4)
 9/2/20 8:36pm
396c4
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Joined: 12/7/2011
Posts: 219

There is a better way to go that I learned from the marine guys. A few years ago, I filled my tank with fuel cell foam to stop the slosh (which is significant given the tanks span the width of the car. These use a tube that is based on capacitance to generate the signal and therefore no moving parts. It is just an aluminum tube about 3/8" diameter that I ordered with the right resistance for GM gauges. That said, I had to build a custom cover plate to mount it and the other fittings. Works great though.

 

Here's a link with some.

https://rochestergauges.com/products/fuel-level/capacitance/



|UPDATED|9/2/2020 5:36:07 PM (AZT)|/UPDATED|


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