C5 Gas Gauge
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Joined: Feb 2008
Posts: 99
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From: CALUMET CITY IL
C5 Gas Gauge
I Took A Trip To Memphis This Weekend And After Driving A While My Gas Gauge Went From Full To Empty, Check Gauges Lite Came On,and Low Fuel. Drove A Full Couple Hundred Miles And Refilled Up Started Working Fine. On The Way Home Did Same Thing. Since I Been Home No Problem . Any Ideas What Going On
Burning Brakes
Joined: Dec 2003
Posts: 1,066
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From: Eddy Texas
Fairly common problem. Try running a bottle of Techron with each of your next few fill-ups. Also only use premium, name brand fuel, most of which have additives in them to help this problem. I've run nothing but Shell premium in my two C5's for over 50k miles combined, with ZERO problems.
Le Mans Master
Joined: Aug 2006
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From: If opportunity doesn't knock, build a door. South West Florida / Livin' The Dream
St. Jude Donor '12
Fairly common problem. Try running a bottle of Techron with each of your next few fill-ups. Also only use premium, name brand fuel, most of which have additives in them to help this problem. I've run nothing but Shell premium in my two C5's for over 50k miles combined, with ZERO problems.
I use Chevron since it already has Techron in it. Exxon and Shell may also have it or a comparable additive. I've not had a problem using these fuels.I filled up at a discount retailer one time and had the same problem you experienced. Never again.
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Hopefully it is only some sulfur deposits messing with your sending units. Try the Techron in the gas and see if that clears it up.
Cruising
Joined: Jun 2007
Posts: 14
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Gas cap
My 2K does the same thing and I have tried all the cleaners and Shell only. My friend's new C6 started doing the same thing. He replaced the gas cap and that solved the problem. He said that if you over tighten the cap (more than one click) it will damage the seal and cause the pressure leak. If it works it is a cheap fix. Good luck.
Burning Brakes
Joined: Nov 2006
Posts: 1,040
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From: Auburn Georgia
My sister-in-laws vette is doing the same thing. Have you checked to make sure your grounds are ok? We think this might be her problem. Also, check to make sure you aren't throwing any codes. Good luck! 
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Melting Slicks
Joined: Mar 2007
Posts: 2,600
Likes: 305
From: Carmel Indiana
My 03 had same problem, always bought cheap gas. Ran Tectron thru one tank and Seafoam the next. Guage started working. Month later happened again and again put Seafoam in. That was last summer, since then always use Sheel V power and have not had any problems. Just keep using the additive till it clears up.
Burning Brakes
Joined: Oct 1999
Posts: 836
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From: Colorado Springs, Colo., USA
Try a couple of bottles of Techron, but you may want to avoid Shell.
Instructor
Joined: Feb 2008
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From: Ridgeland MS
St. Jude Donor '08
My gas gauge has been dead for a week now. I'm running Techron Plus thru it right now. I didn't have any issues at all until this past Thrursday when I filled up a Shell station. 30 mins later gauge was dead. Gonna try Chevron for a while.
Burning Brakes
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From: Colorado Springs, Colo., USA
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Safety Car
Joined: Mar 2007
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From: Sarasota FL
St. Jude Donor '25-'26
This thread about 4 posts down shows the location of the fuel sending units.
http://forums.corvetteforum.com/show...+gauge+reading
http://forums.corvetteforum.com/show...+gauge+reading
Melting Slicks
Joined: Oct 2006
Posts: 3,447
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From: Los Angeles
That's interesting because I always had the best results with Shell/Chevron and the worst with Mobil 1. It was especially noticable in my truck w/ maggie supercharger. Shell and Chevron worked great in boost, but Mobil 1 would always ping/predetonate at WOT in boost.
Even the cheap stuff they sell on base (what I use now) was better than Mobil 1.
Even the cheap stuff they sell on base (what I use now) was better than Mobil 1.
