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    Thread: High pitch whistle in the engine bay

    1. Member TablaRasa's Avatar
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      09-11-2020 07:40 PM #1
      Sound actually started back in 2017, had it diagnosed and SA said it was a vacuum hose had a leak. Never really had it changed since then. Only comes on when engine is hot, idling(at least that's the only time I hear it, it maybe be sounding while driving too but hard to tell with all other noise). Well, I finally got the vaccumm line replaced. Sure enough, sound is still there. Any ideas what it is? Reading some stuff that it could be water pump? Any ideas are welcomed.

      https://youtu.be/2lkQcudDIus

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      08 MKV VW R32T
      09-11-2020 07:42 PM #2
      Pcv/crank case inside of valve cover.

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    4. Member wo2kid's Avatar
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      09-11-2020 08:27 PM #3
      https://www.rkxtech.com/products/36-pcv-diaphragm

      Used this in my R32. It’s been amazing so far.


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    6. Member TablaRasa's Avatar
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      09-11-2020 11:00 PM #4
      Thank you for the info! I'll check that out.
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    7. Member 707Stang's Avatar
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      09-12-2020 12:28 AM #5
      If you go that route, use something to cover the valve cover holes. They are very sharp and will shred the seal. And you’re back to square one.


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    8. Member TablaRasa's Avatar
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      09-14-2020 02:44 PM #6
      ok will do. Thank you everyone
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    9. Member TablaRasa's Avatar
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      09-16-2020 03:16 PM #7
      just an update: my mechanic said it is not the PCV valve but a broken vaccumline under the manifold. My PCV valve is intact
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      09-16-2020 03:26 PM #8
      There are no vacuum lines under the intake manifold....

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    11. Member TablaRasa's Avatar
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      09-16-2020 03:34 PM #9
      Quote Originally Posted by dcmilan22 View Post
      There are no vacuum lines under the intake manifold....

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      well not my mechanic, my SA so he might have misrepresented it? He said they found it when they took the manifold to replace the PCV. I'll ask for the part number and report back.
      Last edited by TablaRasa; 09-16-2020 at 03:41 PM.
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    12. Member TablaRasa's Avatar
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      09-18-2020 04:58 PM #10
      This is the part that had a hole.



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    13. Member 707Stang's Avatar
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      09-19-2020 01:56 AM #11
      Weird...


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