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  • ASR and noise from the rear

    2002 Camaro
    Y87, M5, ASR

    At very low speeds, like driving through a parking lot, I sometimes hear a muffled rhythmic "thump, thump, thump,.." coming from the rear that seems to be related to the speed of the car. It's still there if I push the clutch in and the wheels are still turning.
    My dealer says they can't find anything wrong and in fact say they can't hear anything because of the sound of my "aftermarket exhaust", a Magnaflow catback. The noise was there before the catback went on BTW.
    I've read on another website that one of the complaints about ASR equipped Camaros is the annoying sounds that come from the rear. I'm getting ready to put the thing up on a lift and check out some things myself and I was wondering if anyone else with ASR hears anything like this?

    The site I read this on actually says <blockquote>quote:</font><hr>Torque sensing differentials make annoying nuisance noises. <hr></blockquote>, so I guess it could mean the LSD as well?

    [ November 26, 2003: Message edited by: Denis ]</p>

  • #2
    <blockquote>quote:</font><hr>Torque sensing differentials make annoying nuisance noises. <hr></blockquote>

    'Tis true. Noise will be louder if rear diff fluid gets low (like a leaking pinion seal).
    Jason McCallister, Founder & Webmaster<br /><a href=\"http://www.wtfba.org\" target=\"_blank\">West Tennessee F-Body Association, Inc.</a><br /><br />2000 Camaro - <a href=\"http://www.wtfba.org/site/view_member.php?ID=68\" target=\"_blank\">Details</a>

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    • #3
      I just got my LSD installed the other day, and it makes the same noise. I guess it's normal, but it is quite annoying.
      <a href=\"http://www.cardomain.com/memberpage/512325\" target=\"_blank\">2004 Silver Impala</a> Faster than my Firebird<br /><br /><a href=\"http://www.cardomain.com/member_pages/view_page.pl?page_id=282862\" target=\"_blank\">3.4L Red 1995 Pontiac Firebird</a><b> For Sale</b>

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      • #4
        I'm not sure how many miles you have, but I would change the gear oil and see what happens. Don't forget the add the posi additive. If the problem is still there, I think you might have a bad bearing. The thump thump you described sounds like a bearing problem.

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