RED 72 VETTE

Hi Vetteheads my father has just bought 2002 C5 coupe, lovely car but has an intermitent fuel gauge, one minute reading O.K another time it goes to empty, I have heard there is a bit of a problem with these.
Any idea's where to look first
Thanks Tony from the U.K

bucwheat

Treat with Seafoam,had the same problem and it fixed it with two bottles in two seperate tanks.

deercula

I know some have used Techron Plus with good results.

c5blkvetteguy

I had this issue last year. I have been using Techron since I got the car out and no issues as of yet!

poolboy

the fuel sendor units get gunked up with sulphur deposits - using something like Techron or Seafoam in many cases will clean them up.

SinghZvette

I have a 98 coupe, 75k miles, plagued by the fuel gauge problem. Seafoam, techron nothing worked so I am living with it. I have heard someone mention that it's possible to increase the threshold at which the gauge knocks out. I don't know the specifics but when the gauge does not hear from the tank for x seconds it drops to 0. It is possible to increase that timeout window to fix this problem.

OLD-GUY

Once you clear it up stick with top tier fuel like Shell , you won't have a problem again

RJ1AZ

If/when fuel system cleaner or seafoam don't work for you, you'll just have to replace the fuel level sensors in your tanks.

http://forums.corvetteforum.com/c5-g...ing-again.html

dobewillie

add techron should help

Vetteman Jack

Try running a couple of bottles of Techron through the gas. It is designed to help remove sulfur build-up on the sending units.

RSchleder

A couple of bottles of Techron

BT-01-vette

It will depend on how far gone your sensors are will determine if Seafoam, Techron or BG 44K will work. You may have to have the sensors replaced 1st then use Techron or 44K once a month to keep it clean along with using Shell or another high tier gas faithfully.