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  1. #1
    Join Date
    Oct 2011
    Location
    Northshore - Great Lakes
    Posts
    802

    Default A rumble accelerating, but...

    only around at 1200 rpm, then it smooths out for the rest of the drive. Noticeable at cold engine.
    2001 V70XC - Nautic Blue/ 2-tone Sand/ Premium/ Instant MPG 12 - 63/ Pirelli P4 12/32" - 740/ Duracell 48/ MOBIL-3309/ Pennzoil EURO 5W-40/ Zimmerman Z-coated/ Akebono/ 190K-mi/ Great Lakes

  2. #2
    Join Date
    Jul 2012
    Location
    Landenberg, PA
    Posts
    216

    Default

    Top motor mount?


    2005 XC70 - 50/35 Tint, Yakima Rack

  3. #3
    Join Date
    Aug 2007
    Location
    NJ
    Posts
    621

    Default

    Check your resonator - "middle" muffler..........they go bad and start to rumble....just replace with a straight pipe....
    2017 Maserati Ghibli - Blu Emozione, Black Leather 17k miles
    2013 Subaru Outback - charcoal Grey, Eyesight Collision Avoidance 110k miles
    2007 XC70, Barents Blue, Charcoal Leather 200k miles
    2001 Honda Accord V6 SE - 82k miles - Steady reliable transport
    1978 Bitchin' Chevrolet Z28 Camaro - Fuel Injected 383ci SB Dyno'd at 452HP 462FT/LBs Torque
    My build thread: http://www.nastyz28.com/forum/showthread.php?t=276139

  4. #4
    Join Date
    Feb 2016
    Location
    Windsor, ON, Canada
    Posts
    24

    Default

    I have the same issue. I replaced the upper motor mount. I noticed my res was 'peeling' its outer layer. I removed that outer layer but still getting the same issue. Is there an easy way to check that on a car that's off?
    Hers- 04 XC70 2.5T, 270KM
    His- 04 S60 2.4, 270KM

  5. #5
    Join Date
    Aug 2007
    Location
    NJ
    Posts
    621

    Default

    You should be able to lay on you back and stick your head under the car by the doors and hear it. Or jack it up and put it on JACKSTANDS, not the jack, and roll under there and listen. If you put it up on jackstands you will also be able to visually inspect for any holes, rot etc.
    2017 Maserati Ghibli - Blu Emozione, Black Leather 17k miles
    2013 Subaru Outback - charcoal Grey, Eyesight Collision Avoidance 110k miles
    2007 XC70, Barents Blue, Charcoal Leather 200k miles
    2001 Honda Accord V6 SE - 82k miles - Steady reliable transport
    1978 Bitchin' Chevrolet Z28 Camaro - Fuel Injected 383ci SB Dyno'd at 452HP 462FT/LBs Torque
    My build thread: http://www.nastyz28.com/forum/showthread.php?t=276139

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