| you should check your sender unit, it is located in the trunk compartment towards the seats, lift out the carpet and then lift back the grey or black rubber, there should be some wires and a small wiring harness, that is the sender to you fuel guage. if not try knocking the guage cluster with your knuckle (not too hard) if the fuel guage responds, chances are you sender works fine, but there ia something going wrong with the wiring under the dash. good luck, thats all i really know about that, hope it helps. | 
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