RepairPal is your advocate for car care advice and guidance

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

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...
Get a Repair Estimate
Guaranteed by certified locations nationwide. Learn more
RepairPal estimates are guaranteed at over 1,700 quality certified locations nationwide. Learn more
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.
sometimes when you have a bad grounding wire to the fuel tank or sending unit it will make the guage read full
Didn't find what you were looking for?