Engine Drivetrain 2nd Gen S Most liked posts in thread: Whistling Metallic Sound

  1. caseydog

    caseydog Well-Known Member

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    #2 caseydog, Jun 12, 2016
    That does sound like a failing turbocharger (not turbine, btw). They tend to sound like a dentist's drill when they are failing, and yours sounds like that.

    CD
     
  2. genik

    genik Member

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    #3 genik, Jun 19, 2016
    Thanx CD what do you mean "not turbine"? Does that dentists drill as you say could be the shaft touching the mental while spinning? So in other words it should be playing?
     
  3. MCS02

    MCS02 Moderator
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    #4 MCS02, Jun 19, 2016
    What he means is what you call a turbine we call a turbocharger. Good luck I hope it is fixed soon.
     
  4. oldbrokenwind

    oldbrokenwind Active Member

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    #5 oldbrokenwind, Jun 19, 2016
    You could disconnect the air inlet tube from the turbo, then try to "wiggle" the turbo shaft. There should be absolutely no up / down or side-to-side movement and little-to-none in / out movement. It should also rotate either direction freely. This is not the only way to check a turbo, but it's not difficult either.

    Handle the air inlet hose gently, I've read that this connection can be easily damaged.
     
  5. genik

    genik Member

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    #6 genik, Jun 19, 2016
    Any pic available to indicate the air inlet?
     
  6. oldbrokenwind

    oldbrokenwind Active Member

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    #7 oldbrokenwind, Jun 19, 2016
    No, I don't have a pic --- my mods don't include the OEM turbo, and I have after-market hoses through-out the air handling system.

    Follow your hoses from the air filter to the turbo. Disconnect the last hose that attaches to the turbo. If you disconnect the wrong hose, you won't find a shaft to "wiggle". Using your video, it should be the large diameter hose shown at the top, not the one closest to the front of the car, nor the small one going to the coolant tank.
     
  7. genik

    genik Member

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    #8 genik, Jun 20, 2016
    Last edited: Jun 20, 2016
    So here is my Engine, would it be the hose im indicating with an arrow the one to dismantle in order to look for the turbo shaft wiggling as you say?
     

    Attached Files:

  8. Crashton

    Crashton Club Coordinator

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    #9 Crashton, Jun 20, 2016
    Metal whistle

    [​IMG]
     
  9. Crashton

    Crashton Club Coordinator

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    #10 Crashton, Jun 20, 2016
    Yes that's the one.
     
  10. Firebro17

    Firebro17 Dazed, but not Confused
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    #11 Firebro17, Jun 20, 2016
    You need to replace that with a hash pipe Genik. Guaranteed that noise will disappear.
     
  11. Metalman

    Metalman Well-Known Member
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    #12 Metalman, Jun 21, 2016
    Aftermarket or OEM hash pipe?
    Please place a yellow arrow pointing towards said hash pipe...:D
     
  12. Firebro17

    Firebro17 Dazed, but not Confused
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    #13 Firebro17, Jun 21, 2016
    If he'd ever show his face, I'd place the arrow appropriately.