Question about 2004 Jeep Grand Cherokee

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My Engine Light Came On The Error Code That Came Up P 0442

Jeep has been running great then the light came on I looked up my code on google and it was explaining about how it could be the gas cap to loose having air in the system? Im not sure really what it is I also had found some reasearch that it could be the Evaporative Emmisions System i was just wondering how i should go about finding this leak whats the best way? Money is tight and i am automotively Inclined so please any feedback would be grealty appriciated thanks for your time.

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  • yadayada
    yadayada May 11, 2010

    what is the trouble code? the gas cap is one of over 125 faults that can turn the light on. If u go to Kragen or Autozone parts they will run a trouble code test for u for free.

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If the code is for a evap small leak detected, then it"s possible that the gas cap is not tight. Did you get gas before this happened? You will have to tighten cap (make sure it clicks) and erease the code then drive the jeep and see if the code comes back.

Posted on Feb 24, 2009

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