A corroded ground connection on the wires for the fuel tank harness can cause the gas gauge on a 1992 GEO to not work properly. The wires are located under the back seat inside the vehicle.
Most likely either a bad float in the fuel tank or defective gauge
A common cause for a gas gauge to stop working in a 1994 Ford Aspire is a defective fuel gauge. Lose wiring in the dash is another cause.
you need a newvoltage reducer
First check the fuse for the 2003 Cavalier gauge. Next check the fuel sending unit in the fuel tank to insure that its working properly. Check the gauge next, then the wiring for the system. One of these units is causing your gauge to not work.
why won't my gas gauge work all the time.it will read full when i fill it but after that as i drive i am not sure how much gas is in the tank
on some vehicles the gas light will still work if the gauge does not. on some vehicles such as an 1985 Toyota cressida have a separate sensor allowing the low fuel light to illuminate.
It should do just the opposite. I would check that gauge.
Then fix it
Diana
Your 1992 Jeep Wrangler faulty gas level sensor will cause the gas gauge to not function properly. The gas level sending unit may have a bad ground wire.
Some gas gauges read overfull when you fill the gas tank because the needle goes past the full mark on the gauge. A bad sending unit,bad level sender, or stepping motor may be the cause of the gas gauge not working properly.
A bad sending unit in the gas tank.