Exhaust rattle noise
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  • 1 Post By Ludacrisvp
  • 1 Post By CadiTamer
Cadillac STS Forum - 2005 through 2012 Discussion, Exhaust rattle noise in Past Cadillac Vehicle Discussion; Hi guys! I have anoying rattle noise comming somewhere from the exhaust. It's metalic sound like some balls inside. And ...
  1. #1
    Wojciech is offline Cadillac Owners Fanatic
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    Exhaust rattle noise

    Hi guys!

    I have anoying rattle noise comming somewhere from the exhaust.
    It's metalic sound like some balls inside.
    And it's only between 1.500 - 2.500 RPM and it's very noissy when accelerating.
    I slide under car and can't see any loosenes.
    Anyone had similar issue?


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  3. #2
    Ludacrisvp's Avatar
    Ludacrisvp is offline Cadillac Owners Connoisseur
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    Re: Exhaust rattle noise

    I had the exact same issue. Was broken heat shield on the passenger side pipe (LHD model) ... Dealer found a TSB on it and used a hose clamp to fix it.
    Basically the shield cracked near the weld and would vibrate under certain engine load.

    ----------

    See this thread for a photo of the hose clamp on the exhaust after I pulled it out to put in GMPP exhaust instead.


    http://www.cadillacforums.com/forums...installed.html
    Wojciech likes this.

  4. #3
    CadiTamer is offline Cadillac Owners Fanatic
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    Re: Exhaust rattle noise

    Oh. Cool. I'm not the only one! I figured it was something in the resonator, but this seems much nicer... Hose clamp is a really cool thought. I think i'll do that now!
    Wojciech likes this.

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  6. #4
    Wojciech is offline Cadillac Owners Fanatic
    Automobile(s): Cadillac STS 3.6 DI 2009 RHD with Performance Pkg
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    Thread Starter

    Re: Exhaust rattle noise

    Quote Originally Posted by Ludacrisvp View Post
    I had the exact same issue. Was broken heat shield on the passenger side pipe (LHD model) ... Dealer found a TSB on it and used a hose clamp to fix it.
    Basically the shield cracked near the weld and would vibrate under certain engine load.

    ----------

    See this thread for a photo of the hose clamp on the exhaust after I pulled it out to put in GMPP exhaust instead.


    http://www.cadillacforums.com/forums...installed.html

    THANK YOU!

    Hope this will be the issue

  7. #5
    Wojciech is offline Cadillac Owners Fanatic
    Automobile(s): Cadillac STS 3.6 DI 2009 RHD with Performance Pkg
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    Thread Starter

    Re: Exhaust rattle noise

    Fixed!!
    As CadiTimer said.
    Problem was heat cover.
    I welded it and problem gone

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