I have a 84 GSL-SE, my fuel guage works when the tank is full and standing still. When I drive the gage goes to empty and someitmes it goes to half then back to empty. But after that the gage is at empty. Please help! is it the gage or the fuel sender in the tank?

 

thats a classic symptom of the sender in the tank being bad



mike

 

I wouldn't hasten to conclude the sender being bad just yet. The wiring back there takes a pretty good beating, its exposed to all kinds of the elements. Pull the plug off, spray the plug with carb cleaner and try to clean the contact on the inside of the plug, and on the sender unit... Also follow the wiring back through the gromet in the hole in the floor and investigate the ground..

 

mine would do the same, i took the fuel level thing out of the gas tank and found it to have some rust forming on the wire windings that send the signal of your fuel level to the gauge, i lightly toothbrushed the rust off,,now it works great,,,good luck..