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Thread: rough idle

  1. 11-01-2021, 01:15 PM #1
    gabby121
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    Default rough idle

    2015 rt rough idle runs fine above 1500 has 9000 miles on it any idear what could be the problem
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  2. 11-01-2021, 03:28 PM #2
    Wmoater
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    Default

    How long has it been sitting? How long has the gas been in there? Could be simply bad fuel, bad plugs, bad hoses, dirty filters etc. Need more detail. First start with drain fuel ad 1/2 tank ethanol free and couple caps of sea foam I guess.


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  3. 11-01-2021, 06:27 PM #3
    ARtraveler
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    Default

    Quote Originally Posted by Wmoater View Post
    How long has it been sitting? How long has the gas been in there? Could be simply bad fuel, bad plugs, bad hoses, dirty filters etc. Need more detail. First start with drain fuel ad 1/2 tank ethanol free and couple caps of sea foam I guess.
    x2 Seems like the best place to start.

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  4. 11-02-2021, 06:03 AM #4
    PMK
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    Default

    Tend to agree with others, so few details. Like others, I too suggest a high end fuel additive. After giving it a dose, go log some miles on it.
    Myself, I would likely try Techron to clean the fuel nozzles.

    I doubt I would drain any fuel since it runs at cruise rpm. But certainly burn that fuel out and get fresh quality high octane in the tank immediately and after those miles.
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  5. 11-02-2021, 06:12 AM #5
    Little Blue
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    Default Maybe Bad Gas

    As others have said 'bad gas'.

    Do the suggested changes and let us know.
    More information would be greatly appreciated. ..
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