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Abnormal vibration / shudder 700 1989

posted by  89_760_driver on  Tue Sep 9 23:25 CST 2003
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last visit: Wed Feb 18 21:40 CST 2009
[RELATED]

Hi,

1989 760GLE V6 / AW-71

I'm getting shuddering vibration at revs other than idle in neutral. It seems to be coming from around the tranny area. No problems in other gears, except for what seems to be a driveline "flutter" under hard acceleration. What could this possibly be?

Cheers, Tim

Australia








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    Motor Mounts? Driveshaft Ctr bearing/carrier? 700 1989

    uid 18083's pic
    posted by  lucid on  Wed Sep 10 12:07 CST 2003
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    last visit: Fri Oct 24 12:31 CST 2014
    [RELATED]

    Seems like a lot of this around lately, including my 940. I'm not quite fixed yet. Check for all exhaust-to-engine/tranny mounts being there. See what the FAQ (pull-down Feature menu) has to offer.

    "Watch this space", and good luck,








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    Abnormal vibration / shudder 700 1989

    uid 18083's pic
    posted by  lucid on  Wed Sep 10 00:57 CST 2003
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    last visit: Fri Oct 24 12:31 CST 2014
    [RELATED]

    1) Motor Mounts (check for at least 1/4" between oil pan and rubber on X-member.

    2) Tran Mount

    3) D-shaft Ctr. bearing and/or its carrier bushing

    Just went all thru this w/'93 940, and still have a constant, RPM-sensitive vibration that peaks around 2700 rpm (idling or at any speed/gear). Makes your fillings quiver at 2700 rpm. I posted on this recently. May have got some hints that will help you.

    Good luck,
    --
    Bruce Young,
    940-NA (current)
    '80 GLE V8 (Now gone)
    '83 Turbo 245
    '73 142 (98K)
    '71 144 (track modified--and still here)
    New 144 from '67 to '78
    Used '62 122 from '63 to '67







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