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  1. #1
    Established Member Two Rings bwdysart's Avatar
    Join Date
    Sep 05 2017
    AZ Member #
    406416
    My Garage
    e39_528i
    Location
    Richmond VA

    High Pitch Whistle

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    So it seems like a high pitch whistle has developed in my car but only when itís in boost. Seems like it starts at about 4K rpm and goes until I take my foot off the gas and put the clutch in, pretty sure it doesnít happen while RPM falls, but Iíll double check that tomorrow. Iím hoping itís the DV and not some big turbo problem. Any insight would be awesome


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  2. #2
    Established Member Three Rings
    Join Date
    Dec 05 2016
    AZ Member #
    387541
    Location
    miami FL

    post audio. i love those files

  3. #3
    Senior Member Three Rings rhfosu's Avatar
    Join Date
    Jan 01 2015
    AZ Member #
    306948
    Location
    DC
    Items for Sale

    Could be something as simple as a boost leak, or the turbo itself is going south.

  4. #4
    Established Member Two Rings bwdysart's Avatar
    Join Date
    Sep 05 2017
    AZ Member #
    406416
    My Garage
    e39_528i
    Location
    Richmond VA

    High Pitch Whistle

    Quote Originally Posted by rhfosu View Post
    Could be something as simple as a boost leak, or the turbo itself is going south.
    Yeah I probably shouldíve looked more into boost leaks during my searches. I mostly looked for whistle sound, probably gonna try this DIY and see if I can figure anything out http://www.a4mods.com/index.php?page...boostleak.html


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  5. #5
    Senior Member Four Rings Theiceman's Avatar
    Join Date
    Feb 15 2016
    AZ Member #
    368804
    Location
    Cambridge Ontario

    PCV ?
    2014 Nissan Murano
    2006 A4 2.0TQ 6spd
    1978 Porsche 911SC Targa
    1976 Yamaha XS 360

  6. #6
    Established Member Two Rings tech30six's Avatar
    Join Date
    Sep 22 2016
    AZ Member #
    381569
    Location
    GTA

    What vehicle and engine?

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