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Fuel Gauge does not register correctly.

GMC 2005 SLT - The low fuel light comes on and I fill the tank. The tank is not empty and after I fill the tank the gas gauge will only register 1/2 or 1/4 tank. What could I do to correct this problem. It is a problem not to know the correct amount of gas in the tank. I have been writing down the mileage whenever I fill up and watching the odometer so I could fill it after 200 miles has registered on the total miles. Any advice? Thanks, Bill Gary

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Chances are the float is stuck.
it works pretty much like a toilet tank
try to bounce the rear of the vehicle up and down when tank is middle full
this may free the floatting device and start the real reading

Posted on Apr 22, 2009


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