Defective in tank sending unit or the float has a hole in it and it's full of gas and stays at the bottom of the tank sending a false reading. Usually it's the latter issue. Floats cost about $8.00 at Napa.
It could also be the fuel pump wiring harness is corroded. It is under the car (exposed to the elements), just behind the driver's seat. My gas gauge has been flaky for a couple of years. Now the fuel pump cuts out occasionally and I have to reach under and wiggle the harness to be able to start the car.
you should go to a car shop for that one!:)
Float could be stuck in the tank or the ground wire on the tank is broke.
I would suspect the sending unit in the gas tank is at fault.
I have a problem with my 2 door Toyota rav4 2002 fuel gauge. it reads empty when in fact it is partly full. When filled up at pumps it then reads only half full. What can I do to fix this.
i have a 1990 ford ranger and my fule gauge always reads full, why?
i would recommend getting gas when that happens. perhaps take it to the mechanic to fix the gauge
In most cases the sending unit in the tank is at fault.
I would assume that the wires are hooked up backwards
check your conectors or the float might have a hole in it
The gauge or sensor needs to be replaced.
Where is it stuck? on full or empty? if on full you got a bad ground, if empty you got a bad float.
Either the gauge is broken or the sender is broken.