Question about 2001 Cadillac DeVille
You most likely have a fuel gauge sending unit inside the tank that is failing. The part in the tank that sends the signal to the fuel gauge wears and the small sensing card wires get coated with gunk from fuel and eventually just quit sending a good signal. You could have a faulty dash servo for the gauge but the sending unit is more likely and easy for a shop to test. The sending unit on this vehicle is part of the fuel pump module and may not be serviced seperately so if it's bad you may need to buy the entire pump assembly. Good luck, hope this helps out!
Posted on Aug 26, 2010
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Posted on Jan 02, 2017
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