Fueling problem

Discussion in 'General Chevy & GM Tech Questions' started by stenov, Dec 2, 2009.

  1. stenov

    stenov New Member

    Have a 2006 GMC Serria. Have been driving around with a check engine light for some time. It is a p0455 EVAP large leak detected. I have been trying to get a smoke tester to find the leak. I now also have a problem filling the tank. I get spit back while fueling. Have resorted to filling with a funnel to cut down on fill time. Do you think it could be a vent valve? Any suggestions?

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