Gas gauge stuck on 3/4
#3
If it doesn't drop to empty with the battery disconnected, your gauge is bad. The gas gauge requires power on one side of it to move, and the other wire going to the sending unit is a ground. But if the gauge moves like it should and hangs at 3/4, it's the sending unit. If you take the gas gauge wire off the sending unit and touch it to ground, the needle should peg, which means the gauge is good.
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josh95camaro
93-02 V6 Tech
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10-09-2009 10:15 AM