double dose it, this was a common problem/fix for C5's worth the try first unless your in a hurry to drop the tanks
Erratic Fuel Gauge
Le Mans Master
Joined: May 2016
Posts: 7,273
Likes: 1,546
From: Florida
Melting Slicks
Joined: Dec 2013
Posts: 2,232
Likes: 315
From: Bridgewater New Jersey
If you have some miles on your car, more than likely the sender will look like the bad one in post #5, in the link below. The passenger side usually wears out first.
Link here;
https://www.corvetteforum.com/forums...ification.html
Link here;
https://www.corvetteforum.com/forums...ification.html
Last edited by extrapilot; Jun 25, 2016 at 11:26 AM.
Pro
Joined: Mar 2011
Posts: 534
Likes: 33
From: Southern cali
That's symptomatic that your fuel sender unit located in your passenger side fuel tank is going out. eventually it will drop to zero and throw a code.
now as to the fix --- some have obtained temporary relief by dumping Techron into the tank.... but this is best a temporary fix. This is a big job to replace the sender unit as it requires dropping the tanks... even harder if you have an automatic. I do suggest if you have the job done, you replace the fuel pump in the passenger tank ( it will be easy to replace it when the tanks are dropped to get to the sender )
now as to the fix --- some have obtained temporary relief by dumping Techron into the tank.... but this is best a temporary fix. This is a big job to replace the sender unit as it requires dropping the tanks... even harder if you have an automatic. I do suggest if you have the job done, you replace the fuel pump in the passenger tank ( it will be easy to replace it when the tanks are dropped to get to the sender )
Safety Car
Joined: Feb 2007
Posts: 4,684
Likes: 107
From: Opelika Alabama
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Thread Starter
Melting Slicks
Joined: Jul 2014
Posts: 2,145
Likes: 204
I should have been more specific. What I noticed is at times the gauge would read slightly less then half tank. Then it would read slightly more then half tank. Eventually it would stabilize. It's not like it would jump all over the place. I don't run it low on fuel so it doesn't concern me enough to drop the tanks if the sender is indeed faulty lol. But I guess that gives me an excuse to do a fuel system. Hmmm...
Melting Slicks
Joined: Dec 2013
Posts: 2,232
Likes: 315
From: Bridgewater New Jersey
I should have been more specific. What I noticed is at times the gauge would read slightly less then half tank. Then it would read slightly more then half tank. Eventually it would stabilize. It's not like it would jump all over the place. I don't run it low on fuel so it doesn't concern me enough to drop the tanks if the sender is indeed faulty lol. But I guess that gives me an excuse to do a fuel system. Hmmm...
Pro
Joined: Jun 2007
Posts: 524
Likes: 2
From: Stanley Virginia