My gas gauge on the instrument panel does not accurately report the fuel level. In many cases it will lean toward the full mark. Once in a while it will accurately go to the correct level, but then will float back to the full mark or close to it. My fuel pump is working fine. Any suggestions?
Gas gauge is not accurate, floats back and forth on 1999 Chevrolet Cavalier
If a couple of tanks with the Techron Concentrate doesn't work, then you are probably out a bundle for the fuel sending unit.