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2.9 L idles fast

Discussion in 'Bronco II' started by Doug 66, May 8, 2013.

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  1. Doug 66

    Doug 66 New Member

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    My son has a 90 bronco 2 with the 2.9 L .Its been idling fast and the throttle stop is backed away from linkage and still idles fast
     
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  3. kaytor692

    kaytor692 New Member

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    have you tryed changing the idle air control valve?
     
  4. RangerX

    RangerX Elite Ranger Staff Member Moderator Elite Explorer

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    A vacuum leak could do that. Any missing caps or hoses on the vacuum tree?
     
  5. rookieshooter

    rookieshooter Moderator Emeritus

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    Make sure that the throttle (butterfly) valve is not all carboned up and not letting it close all the way. Auto stores sell a spray solvent that will get rid of the crud.
     
  6. Doug 66

    Doug 66 New Member

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    Thanks for the suggestions guys..It was a vacumme leak ,there was a hose just laying there, i didnt see it first time i looked under hood Thanks Doug
     

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