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  1. 04-26-2018 01:03 PM #1
    Quattro_Buckeye
    Quattro_Buckeye is offline
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    Mar 27 2017
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    396460
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    Seattle, WA

    Need help in identifying this part on my intake manifold

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    Driving today my b8 started to shake while stopped at a light. Opened the hood and heard what sounded like a vacuum leak from the top rear of the motor, on the end of the intake manifold.
    Found this part popped out of the intake. Popped it back in and it stopped shaking.

    What is this part, why does this happen, can I replace it?

    4-26-2018 12-39-00 PM.jpg

    Thanks!
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  2. 04-27-2018 04:08 PM #2
    OG Audi
    OG Audi is offline
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    Apr 23 2018
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    417543
    Location
    New hampshire

    In for info aswell
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  3. 05-03-2018 12:02 PM #3
    S-Liner
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    Oct 21 2014
    AZ Member #
    289884
    Location
    Illinois

    ^^^


    Sent from my iPhone using Audizine
    '10 A4 Avant Prestige Plus S-Line w/sport pkg
    My Oil consumption results..."Oil consumption measurement found to be using 3.26 quarts per 1000 miles"
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  4. 05-05-2018 07:29 AM #4
    A4x
    A4x is offline
    Veteran Member Four Rings
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    Aug 17 2015
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    349632
    Location
    California

    It is the vacuum actuator that controls the runner flaps. Seems to be a pretty common failure mode on these manifolds. Watch these videos for more info:



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