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Thread: rough idle

  1. #1
    Idle between 300-500 its a 5.4 2004 can feel it sputtering the rpm needle is moving back and forth to 300-500 rpm please help

  2. #2
    "The Enforcer" BFEB's Avatar
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    Does it run fine otherwise?
    If the women don't find ya handsome, they should at least find ya handy

  3. #3
    Ya seem to be but I can feel it sputtering no engine lights are on

  4. #4
    Super Moderator kozal01's Avatar
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    THat idle seems a bit low, It should be idling around 550 or slightly higher. Are you getting any misfire codes or any other codes?
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  5. #5
    No I don't have any codes

  6. #6
    "The Enforcer" BFEB's Avatar
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    I would start by checking/replacing the air filter and fuel filter. Probably give the MAF a good cleaning too
    If the women don't find ya handsome, they should at least find ya handy

  7. #7
    mad what is that and where is that located at

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    Sorry where is the maf located at

  8. #8
    "The Enforcer" BFEB's Avatar
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    I'm trying to remember the config of the 5.4 and it's not 100% fresh in my mind, but it will be somewhere between the air filter and throttle body. There may be YouTube videos of people cleaning theirs.
    If the women don't find ya handsome, they should at least find ya handy

  9. #9
    TAC 14-2 Carolina Boostin's Avatar
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    Try your iac ( idel air control) it could be dirty
    2012 supercab ecoboost

  10. #10
    Where can I find that at

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