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1991 Pontiac Bonneville Question: my gas gauge is acting weird?"

 

Question

chance_dsm, Cumming, IA, July 06, 2009, 17:25
 Rookie

i thought my gauge was stuck all the way past full, now it goes down to full, when car is off, is it registering at all?
and how can i locate the trouble? thanks...

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  • Answer #1

    Bret Bodas from RepairPal Test Shop, July 07, 2009, 09:10
     Master

    You should check out the fuel level sensor in the fuel tank. You will need a repair manual that includes the specifications for the sensor and a meter to measure the signals to and from the sensor.

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  • Answer #2

    Visitor, August 05, 2010, 12:53

    sometimes when you have a bad grounding wire to the fuel tank or sending unit it will make the guage read full

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