Probably a faulty sending unit in the fuel tank.
Most fuel gauge problems are the result of a faulty fuel gauge sending unit located in the fuel tank.
1984, Corvette the fuel gauge stays at 1/2 full all the time. Plaese help.
might be a bad fuel sender unit or BCM
A bad fuel sending unit, a fault in the circuitry for the fuel sending unit, or possibly a faulty gauge.
Most likely either a bad float in the fuel tank or defective gauge
The float in the fuel tank may need to be replaced.
my gas gauge doesnt work and i dont get a warning light when about to run out, mine goes to fuel when its about to run out
It usually means that there is something wrong with the fuel gauge itself. It's like when the speedometer is out, just get i checked by the car manufacturer
it is likely your fuel gauge is not working properly
More than likely the float is bad on the fuel pump, so i would recommend that you change the fuel pump.
You would need to use alternative method of checking the fuel level, such as dipping the tank.
In most cases it is the sending unit in the fuel tank at fault.