Start by testing the fuse and wiring that is connected to the gauge. Replacing the gauge may be necessary if other solutions do not remedy the problem. Repairs may involve several hours of troubleshooting and labor before the issue is corrected.
Refer to the owner's manual to locate a diagram of the vehicle's fuse box, and replace the appropriate fuse. Test the gauge to determine whether a new fuse has remedied the problem.
The gas gauge operates using a series of wires that should be clean and properly connected to both the battery and the tank sending unit. To determine whether the gauge is receiving power, connect a jumper wire from the ignition to the dash gauge. If the gauge works while connected to the jumper wire, replace the wiring from the ignition to the gauge. Test the wiring connected to the sending unit by attaching a jumper wire and checking the operation of the gauge. If the gauge operates properly with the jumper wire, replace the wiring from the sending tank to the gauge.
Replace the gauge in the dash of the vehicle if the wiring is connected and grounded properly.
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