my 2011 chevy impalla makes a popping noise from the gas tank. I replaced the purge valve. The old one tested the same a the new one with a vacuum pump but I put it on anyway anybody run into this

Asked by Guru1LZYF Sep 06, 2019 at 02:34 PM about the 2011 Chevrolet Impala LT FWD

Question type: Maintenance & Repair

2011 popping noise from gas tank. It happens about 5 minutes after shutoff
but if the road is quite you can hear it while driving sometimes

1 Answer

F_O_R answered 5 years ago

I think there is a problem with the gas tank vent system (EVAP).

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