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  1. #1
    Join Date
    Jul 2017
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    central VA
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    Clunking rattling noise on 1 out of 10 startups

    Getting a clunky noise every so often when I start my 04 zhp. If I give a little gas it stops. Sounds like it's coming from down low nearly underneath me. Loose heat shield on exhaust? Vanos? I will try and capture some audio. Any thoughts?


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  2. #2
    Join Date
    Nov 2014
    Location
    Portland, OR
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    Hard to tell without video to understand where exactly it's coming from and what it sounds like.

  3. #3
    Join Date
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    central VA
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    Quote Originally Posted by BMWCurves View Post
    Hard to tell without video to understand where exactly it's coming from and what it sounds like.
    Understandable. I'm going to start recording every time I start the car so I can catch it when it happens.


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  4. #4
    Join Date
    Jul 2017
    Location
    central VA
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    [https://vimeo.com/227092213/URL]
    Ok, I think I got it uploaded. This was on second start up this morning holding phone right under driver side seat.


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  5. #5
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    Location
    central VA
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    Quote Originally Posted by droman81 View Post
    [https://vimeo.com/227092213/URL]
    Ok, I think I got it uploaded. This was on second start up this morning holding phone right under driver side seat.


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    Uploaded incorrectly, will try again


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  6. #6
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    central VA
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  7. #7
    Join Date
    Feb 2014
    Location
    Kitchener, ON
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    6,019
    weird. sounds like DMF. if you keep the clutch depressed, does it happen?
    peter

    2005 330iT ZHP | the Growlour

    2010 328iT M Sport | smooth operator

  8. #8
    Join Date
    Jul 2017
    Location
    central VA
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    Quote Originally Posted by slater View Post
    weird. sounds like DMF. if you keep the clutch depressed, does it happen?
    That was no clutch, idling in neutral. I gave it a little gas and it stops. Haven't had a chance to try much else.


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  9. #9
    Join Date
    Jul 2017
    Location
    central VA
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    Quote Originally Posted by slater View Post
    weird. sounds like DMF. if you keep the clutch depressed, does it happen?
    My girlfriends dad has a couple of classic corvettes and he thought it sounded like a loose exhaust heat shield.


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  10. #10
    Join Date
    Nov 2014
    Location
    Portland, OR
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    Quote Originally Posted by droman81 View Post
    My girlfriends dad has a couple of classic corvettes and he thought it sounded like a loose exhaust heat shield.


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    Like the driveshaft is knocking against it?

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