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Anonymous
1. UN HOOK THE BATTERY CABLES.
2. TOUCH THE ENDS OF THE LOOSE CABLES TO EACH OTHER FOR 5 SECONDS.
3. CONNECT CABLES BACK TO BATTERY, POSITIVE FIRST.
This is the advise I found on line.
Wiki User
Most of the time it's the fuel level sender in the fuel tank if your gauge moves around a bit but doesn't read correctly. If the Gauge is stuck on full all the time, the gauge itself is broken.