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Thread: new sound to me

  1. #1
    Join Date
    Apr 2019
    Location
    goose creek sc
    Posts
    21
    My Cars
    1999 bmw

    new sound to me

    new to my 1999 328I , i noticed a sound at idle ..kinda like a power steering pump wine ....cant notice when driving. it might be normal just dont know

  2. #2
    Join Date
    Apr 2019
    Location
    Ottawa, Canada
    Posts
    9
    My Cars
    2000 323ci cabrio
    A failing fuel pump can make a whine, but you can usually isolate that sound as coming from the rear (under the back seat, in fact).

  3. #3
    Join Date
    Apr 2013
    Location
    Mill Valley, CA
    Posts
    346
    My Cars
    2003 330cic
    Quote Originally Posted by biga1999 View Post
    new to my 1999 328I , i noticed a sound at idle ..kinda like a power steering pump wine ....cant notice when driving. it might be normal just dont know
    Try to isolate the location. Open the hood and use a mechanics stethoscope (or any bit of hose).

    If it is a whistle look at the brake booster.

    For a whine it could be any of the items on the belts in front. Pulleys, water pump, compressor, steering pump.

    If you can isolate at the belt area, remove the serpentine belt and idle for a moment to see if the whine goes away.

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