Have you ever had it out and cleaned the sliding unit and the wires? It is more likely to be your sliding unit than your gauge. I would start with your unit and if the wires are intact I would clean it because the sliding unit is probably stuck. If the sliding unit is stuck just slide it up or down and put it back together and plug it in without putting it back in the tank. You can then look at your fuel gauge and if it has changed you know where the problem is.. Jim

__________________
James A. Harris