n8dogg

Hello,

My 2002 Z06's fuel gauge reads 3/4 when I fill the tank with gas. I am unsure if the tank is actually full or not. The gas nozzle/pumps will not let me put any more gas in. Is it more likely that the level sensor is bad or that the tanks will not fill past 3/4? I'll burn some fuel this week and try techron at next fill up.

Corvette#2

I would say the fuel level sensor is off.

n8dogg

Will do! I've read the numerous posts and threads on the issue, but had not come across one where the gauge would peg at 3/4. Seemed like they all would drop to 0 at some point.

Does anyone know if 1 tank drains to 0 before the next tank, or are the tank levels equalized as the fuel level depletes? I think I read in SI that the right tank drains first, then the left. So if I'm at 1/2 tank, I can add Techron and then fill up and most should go into the right side tank, in theory.

94zrag

Just throwing this out there:When I fill up, if the drivers side of my car is lower than the passenger side, the pump will shut off early and I won't be able to completely fill the tank. Not sure if that's your problem or not, but it couldn't hurt to try it.

Vetteman Jack

That would be my guess too.

acuevo

Mine did this a couple fill ups ago, except it said half. Over the course of about a half hour it came all the way up to full. The blazer I had years ago did this every now and then as well, figured its just a GM thing. Recently I've been running a bottle of techron every few tanks so I guess it will clear out. Hasn't happened since at least.

ArmchairArchitect

Besides what everyone else wrote regarding Techron, make sure to only fill up at gas brands that meet the "Top Tier" standard: http://www.toptiergas.com/licensedbrands/

No, its not a gimmick. Many reputable, independent sources have confirmed that non-Top Tier brands leave 19x more deposits and arent as clean as Top Tier compliant fuels, at all octane grades.

ArtClassShank

x2 on this.


Happened to me recently at a non-level gas station pump. Was on reserve fuel, and could only fill 7.5 gallons, pretty much half of what a full tank is from reserve light coming on.

Filled up today on a level surface, no such problem!

n8dogg

Update: seems to be a level sensor fault. I've filled up 3 times with a bottle of Techron in each fill up. First tank didn't seem to change anything, understandably. Second tank and the gauge read a little closer to full than before. 3rd tank and the gauge read 1 notch below full. Will try a 4th bottle of Techron at the next fill up.

Corvette#2

Agreed on the top tier fuel. I do anything to avoid Circle K gas.

One time I was low and went ahead and filled it up there. No joke, the fuel gage didn't move ! I pumped like 16 gallons and the needle was stuck on E. It eventually bounced up, but I reasoned it must have been some crappy gas to immediately seize the sensor.