Cole

When I purchased my 2000 'vert, the owner , a Corvette lover and perfectionist, warned me about the fuel guage problem. He had had the fuel guage repaired under warrantee, but the problem re-occured. Then he read about Techron which solved the problem and advised me to try it if I had fuel guage issues.

It did come back with a vengeance and I ran out of gas - great surprise. I filled up with Chevron gas, purchased Techron additive and watched the trip odometer to avoid running low on fuel. After about three tanks of gas and three "doses" of Techron, the fuel guage is back to normal and working well.

When the guage was failing, the tank would display half a tank plus, then plummet suddenly with no apparent fuel remaining. Unless a station was close, the vehicle simple shut down from lack of fuel. Post Techron, "Normal" behavior has returned and the guage displays right down to the E mark and ties in with the trip odometer.

So... Techron works. Other additives may as well. But this stuff definitely has made me a believer. I am now using only Chevron gas in the car and stocking Techron additive.

I still don't believe in STP. 8>)

Regards from Arizona,

Cole

c5BlackBeauty

Thanks Cole. I have a 2000 as well, but no problems yet. Appreciate the headsup about the additivie.

sxeC7

Only use Chevron in my 2000 Vert and so far no problems.

StuzVette

Thanks Cole...
...there may be something to this...

a problem with mine occurred and I came across information here that Chevron gas would help...

I load up with Chevron and no more problem.
The fuel guage operates fine without adding Techron...
...I will keep this info handy just in case

blacksedan87

I've been using Chevron exclusively on the Vette for about six months. No problems at all. One of my buddies has an '03 coupe, and didn't believe me until he had the dreaded fueld guage failure at the worst possible time - he ran out of gas about 45 miles from home with his wife in the car. The guage was reading erratically and eventually he ran out of gas.

Bottom line - he had the car flat bed towed in the dealer, the service advisor validated what I told him about Techron and they replaced his guage sending unit under warranty - oh yeah, they picked up the $95 charge for the flat bed, too!

Using Chevron seems to mitigate if not solve the problem!

Dave1998

A bottle of Chevron Techron every 6 months will keep your injectors clean as well !

FLACHUSNRET

I try to use only Chevron premium gas in my '02 as I did in my '96. My '96 had a Chevron sticker inside the gas cap door which appeared to be a factory sticker. Occassionally I put Shell in my car if Chevron is not available. Doesn't Chevron gas contain this Techron already?

Patman

Two other good fuel additives which would help keep your fuel system very clean, and therefore should help eliminate this problem, are products called Neutra (made by Shaeffer Oil) and Fuel Power (made by Lube Control) I've used these products in my cars. They are safe to use in smaller regular doses, for instance I now add 1oz of Fuel Power for every 5 gallons of gas. It's good preventative maintenance for the entire engine, as it also helps keep the combustion chamber free of deposits. It also has the effect of raising the octane by one point too. Some people report seeing their MPG go up by 1 or 2 as well, although I'm not sure yet if mine is doing that (I haven't owned the car long enough to establish any trends)

Zilla

Techron will not solve all the fuel gauge problems. I have been using strictly chevron 94 and adding bottles of techron every few fill-ups for over a year and I still have a fuel gauge problem which GM cannot fix yet.

StuzVette

Shoot I thought I was going to be okay!

When I fuel up...I do hold my tongue over like yis
...and shut one eye while opening the other eye real wide...

lt1george

BG44K works very well also.Save the Wave.>George

Zilla

GM has installed new sending units in my car back in May and it does not read full when filled, it reads between 3/4ths and 7/8ths. When I was driving to Portland the gas guage dropped to E about 5 times with the code P1431 showing up. All I did was clear the code while I was driving.

The Chevy dealer was told by GM that there is a new part but only being shipped in the US go figure.

TkitPlz

Is this fuel gauge problem unique to a particular year or years of the C5? I just bought a 2004 Coupe and so far I've only used Amoco Ultimate. I was planning to store the car this winter with a full tank of Ultimate and a bottle of Stabil, but a post on another thread talked of a fellow having problems for a couple of months because of this combination. Ideas, thoughts, suggestions? Thanks. Dan

Zilla

No year in particular.
Most people that have gotten the problem has used gas that was bad or contained high sulphur content. I had to use Shell a few time and that when the problems first started for me.

Cole

Seldom does any "fix" solve every problem. ButI have read on this forum previously that the Techron additive/fuel might do it. That plus following the previous owner's advice led me to try and it worked. So its worth a try - easy and cheap fix if it works. I have great belief in additives but am simply happy that this tip worked for me.

Regards,

Cole

MyBlueC5

Is there another brand of gas for those of us that don't have Chevron around us? I live in NC and don't remember ever seeing a Chevron. Unfortuantely, there are alot of Shell stations here.

Mark

Tom337

Techron fixed my fuel gauge problem.Knock on wood :-)

vettenuts

Not sure I would blame it on Shell either. That's is about all I use. I and a friend developed the problem at the same time, and it was after purchasing fuel at a Sunoco station that happened to be a good buy. Different fuel and Techtron (knocking on wood here) seem to have corrected the situation. It did develop last fall, so it will be interesting to see if it reoccurs when the winter blends of fuel start appearing.

Cochemarman

I've only had the fuel guage problem on my 2000 MN6 once - just after I collected it from the dealer. I was on a long slow low revving motorway journey from the north of France to where I live. About half way home the guage went down to E.

I filled up with supermarket fuel, which I have used ever since with no problems.

I do tend to keep the injectors clean the old fashioned way if I can - I just rev the nuts off it every chance I get!

ptdrummer54

Here in MN the high octane has Ethanol in it (10%) and so far no problems. Has anyone had problems while using Ethanol blends?