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2004 Dodge Ram 1500

Question: cel,p0301, some days light is on then off

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gardengal, 4.7L V8, Chico, CA, February 09, 2012, 18:09
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we have done a tune up, new coil, new gas cap, new injector, it will run great, start fine for a few days and then acts like a misfire or rough idle on cold starts then after about one minute it behaves normal...been doing this for 4 months.Sometimes it will do it on every start and then it will be fine for several days...???? I notice that when I take my gas cap off there is no pressure release( my other car releases pressure when cap comes off???)

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  • Answer #1

    Greg's Orange Auto (4512 Answers) , Orange, CA - (714) 769-6971
    globalhelper February 09, 2012, 20:49
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     Master

    you may have an injector malfunction or the cicuit that controls it.

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  • Answer #2

    Venosho February 11, 2012, 07:03
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     Rookie

    P0301 refers to a cylinder misfire and it is cylinder #1 check the boot that goes between the coil and the plug it may not have gone on correctly or it may be compromised look for a burn spot on the side of it or if it is torn anything like that could cause an intermittent misfire code.

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