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2005 malibu trouble code po455


fiserman
12-10-2010, 11:08 PM
My 2005 malibu classic with a 4 cyclinder is got a check engine light on giving a trouble code po455(evap emission control system leak(large) ). We replaced the fuel cap and the fuel tank pressure sensor. Don't know what else to do. Can anyone tell me what it is and how to fix it. Thanks Fiserman :rolleyes:

fiserman
12-13-2010, 08:45 PM
Ok everyone got answer to problem today. Put in dealership to fix. Said needed new gas cap. Apparently auto zone gas cap did not work, gasket didn't seal tank as it should. This is not the first time this has happened, had this happen on another vehical. Make sure I go to dealership and buy gas cap from them next time. Hope this will help someone else who runs into the same problem. Thanks Fiserman :crying:

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