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Thread: Ominous Rumbling noise

  1. #1
    Join Date
    Mar 2005
    Location
    Hockinson, Washington
    Posts
    2,499

    Default Ominous Rumbling noise

    After i have been driving my car for a bit, when i come to a stop there is a rumble that i can hear with my window down. Its a deep sound, like a bad bearing might make. Today when i got home, i left the car in park and opened the hood and listened around but the results of my un-tuned ear were inconclusive as to where the noise might be coming from, although it seemed lower down somewhere. I plan to take the main belt off and spin the water pump and alternator to see if their bearings are bad. I hope its not the transmission

    Any suggestions on what to inspect?
    Lowered with blue h&r(?) springs, Bilsteins, tint, 19# design 3 injectors, Dual Magnaflow
    southwest WA

  2. #2
    Join Date
    Sep 2005
    Location
    Goulburn Australia
    Posts
    689

    Default

    Have a listen to the tranny. I used to be able to hear my E12 gearbox rumble quite clearly from the driver's seat, window down, next to a wall. Couldn't hear diddly squat from the engine bay. Going through Maccas drive through today?
    Cheers

    Wingman
    '89 525i/A Exec 193000kms
    '94 Subaru Liberty AWD Wagon
    Looking for Merc 300TE
    NSW, Australia

  3. #3
    Join Date
    Mar 2005
    Location
    Hockinson, Washington
    Posts
    2,499

    Default

    Nope, no drive throughs. (i had to look up "maccas" on urbandictionary.com) The alternator and water pump *seemed* ok tho.
    Lowered with blue h&r(?) springs, Bilsteins, tint, 19# design 3 injectors, Dual Magnaflow
    southwest WA

  4. #4
    Join Date
    Mar 2006
    Posts
    811

    Default

    Drive it until you hear the sound. remove the drive belts and run it again. Sounds typical for a failing water pump.

    It is safe to run the engine with no belts for testing purposes.

  5. #5
    Join Date
    Mar 2005
    Location
    Hockinson, Washington
    Posts
    2,499

    Default

    I hope its the water pump. I will post an update tomorrow.
    Lowered with blue h&r(?) springs, Bilsteins, tint, 19# design 3 injectors, Dual Magnaflow
    southwest WA

  6. #6
    Join Date
    Feb 2006
    Posts
    27

    Default

    when i stop mine mikes like a churning sound, but i havent noticed it much lately

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