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Thread: ae86 vacuum problems

  1. #11
    Senior Member Dylan's Avatar
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    The PCV is located inside the manifold on the 4age, If you plug that hose with the tape on it with a bolt does it fix the high idle?. Get a can of carby cleaner, wd40, crc, etc and spray around any suspect areas and see it the engine rpm changes

  2. #12
    Veteran slide86's Avatar
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    well pvc is the stuff that they make drain pipes with.

    a PCV is positive crankcase ventilation, and its in the plenum which that hose goes into. its part of the emissions system.

  3. #13
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    where does that pvc hose need to run too though (i am curious myself)

  4. #14
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    hmmm this is getting interesting by the momment lots of answers and good stuff that people can follow because i know alot of people that got the same problem.

  5. #15
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    and dylan i will give it a go tomoz after work and see if it does change
    but i do notice when i pull off the blocked one that has 3 nipples my reeves drop a fair bit could that be a solution too?

  6. #16
    Veteran slide86's Avatar
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    it runs from the PCV on the plenum to the rocker cover....you can see how the hose is sitting right next to where its supposed to be fitted.

    but now the catch can has been fitted, the hose has just been taped up

  7. #17
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    hmm i was told by mates that were usually the catch can is taped into could tat be a cause why the idle is so high?
    Last edited by slighten; 2nd March 2010 at 09:33 PM.

  8. #18
    Veteran lolwat's Avatar
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    I WAS WRONG!!!!!!
    Last edited by lolwat; 2nd March 2010 at 09:48 PM.

  9. #19
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    is there anything else u see from the pics on my engine looks wrong?

  10. #20
    Veteran lolwat's Avatar
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    yea its not in my drive way

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