When the engine runs, these two guages for some reason register hot and full
SOURCE: 2001 Volvo V70-T5 fuel guage malfunction
I had a similar issue and started to notice other electrical failures along with the gas gauge. My rear doors would not lock and my rear wiper stopped working. I started pulling fuses and relays to see if this would reset, no go. But then I hit the jackjpot. In the rear electrical panel, below all the fuses and relays is a 2" x 2" black plastic square with a big screw in it.
Remove the screw and pull evenly on the black square. This seems to be a major electrical hub for the car. I reconnected and all 3 of my issues disappeared...I read somewhere that a fix might be to disconnect the battery for a few minutes, which I guess re-sets some relays and circuits, but I guess this did the same thing. Good luck.
SOURCE: Olds Intrigue fuel guage needle stuck behind peg
Did you find the solution yet? This just happeded to me. But my odometer went out, the blower fan stays on when it rains, and the lights to my shifter, a/c, and stereo are malfunctioning.
SOURCE: 01 cadillac seville sts
It defanetly sounds like a sending unit and the fuel tank needs to be removed in order to replace it and it will most likely come with a new fuel pump too.They come as a unit and there not cheap. Sorry.
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Shortly before this problem occurred I replaced the thermostat. Could this cause the problem to both guages?
Both fuel and temp guages have a common power source controled by a voltage stabiliser for accuracy. Find a wire diagram and test the circuit.
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