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Thread: Vibration

  1. #1
    Join Date
    May 2019
    Location
    Indianapolis
    Posts
    8

    Default Vibration

    Hello,

    I'm experiencing a 25-50mph driveline vibration, worst at 35mph. It happened over a 7 hour round-trip, I didn't notice anything until we were off the highway. It hasn't gotten any worse since then.
    I can feel a vibration through the gas pedal, and can hear it faintly. It's a pulsating vibration, and doesn't seem to correspond to acceleration/deceleration, turning, etc. The pulsation does speed up with vehicle speed.
    I've been assuming for now that it's a driveline vibration. I checked the angle gear for oil and it's full. Turning does not make it better/worse, so I doubt it is angle gear or wheel bearings. I'm thinking either a front axle bearing or the drive shaft.

    The driver's side axle has quite a lot of lateral play where it comes out of the transmission, is this normal? I would say around half an inch.
    The passenger side axle felt fine to me, no play.
    The driveshaft doesn't seem to have play either. Could I simply unbolt the driveshaft at the transmission and diff without removing it to test it, or would it clunk around?

    Thanks for any help.

  2. #2
    Join Date
    Feb 2013
    Location
    Boston, MA
    Posts
    1,127

    Default

    Bad axles do normally shake/vibrate only during acceleration.

    Any chance you got some sticky mud or snow on your rims?
    2002 V70 (sold)
    2005 XC70 (Telos Road took it. Did a chassis swap)
    2016 XC60

  3. #3
    Join Date
    Feb 2013
    Location
    Boston, MA
    Posts
    1,127

    Default

    Also it is not uncommon to loose weights or to turn tire on rim if underinflated.
    2002 V70 (sold)
    2005 XC70 (Telos Road took it. Did a chassis swap)
    2016 XC60

  4. #4
    Join Date
    May 2019
    Location
    Indianapolis
    Posts
    8

    Default

    The wheels are clean. Tires were mounted a few weeks ago, I can check the weights but it doesn't feel like a normal wheel balancing issue. No shaking steering wheel, high speeds it goes away, and vibration can be felt through the gas pedal when it's happening at 35-45mph.

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