Question about 2001 Chevrolet Impala

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Gas gauge goes up and down when I get out of car when i am sitting in car the gauge reads full even though it is not full then on hills and just sitting at a stop light it goes to empty for no reason

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You most likely have a failing fuel level sending unit which is located inside the fuel tank. The sender wears a bit as the float arm moves up and down with normal fuel level variations and this wear can result in a guage that reads erratically. Many of the fuel level senders are now only sold as a part of the fuel pump module so if it turns out that it is indeed the sender you may have to replace the entire pump module. Hope this helps!

Posted on Jul 15, 2010

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