Idle and spark plugs

Idle and spark plugs

This is a discussion on Idle and spark plugs within the Introductions forums, part of the Ford F150 Ecoboost category; Hey guys! New to the dorum but u currently have a 2012 eco-screw and have 30,000 miles now and have been fighting a rough idle ...

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  1. #1
    Rookie villipoto507's Avatar

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    Idle and spark plugs

    Hey guys! New to the dorum but u currently have a 2012 eco-screw and have 30,000 miles now and have been fighting a rough idle for at least 10k miles now... Any suggestions, im on my second set of motorcraft plugs, drop in aem filter, fresh oil, fuel additives etc... Nothing has helped... So im lovin the truck except for that... Any help is welcomed! Thanks guys!!!

  2. #2
    Ecoboost Veteran PLASMAN's Avatar

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    Have you tried a KAM- keep alive memory reset? Disconnect battery for about 5 minutes while disconnected turn on headlight switch to drain all residual power from the truck. When you reconnect power you will need to complete an entire drive cycle and the ECM will be learning the whole time. When you first start the truck let it idle for a minute, then turn max ac on and let it idle for a minute so it learns to idle with a load also. Maybe this will help you
    2012 FX2 Screw
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  3. #3
    Rookie villipoto507's Avatar

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    Wow, ok... Tganks alot man!!

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  5. #4
    Ecoboost Veteran kFirm's Avatar

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    Did this work?

  6. #5
    Eco-Beast outlaw25's Avatar

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    If it was me I'd take a trip to the dealer and let them give it a shot before spending a lot of my money.

  7. #6
    Ecoboost Pro brian351w's Avatar

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    it doenst cost anything to disconnect the battery for 5 min and let the ECM relearn a few perameters under load !

    besides that most dealerships are going to laugh at you if you pull up and say your truck idles rough.
    its a whole different story if an injector is blocked or something physically wrong
    2013 XLT Flame Blue Metallic 4x4

  8. #7
    Ecoboost Master Isdaako's Avatar

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    Yup... would have been nice to hear back from the OP on the effectiveness of the suggestion.

  9. #8
    Rookie villipoto507's Avatar

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    Hey guys! I did do this, but i found that my brake booster vacuum line had blown off so that was the cause of my rough idle and surging...

  10. #9
    Eco-Beast Kc311's Avatar
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    Spray carb cleaner on the vacuum lines... You'll find that leak real fast!

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