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Thread: Whining Engine Noise on cold start.

  1. #1
    Join Date
    Feb 2018
    Location
    Plano, Texas
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    2
    My Cars
    2003 BMW 330xi

    Whining Engine Noise on cold start.

    2003 BMW 330xi. When I start my engine there is a whining noise coming from front right engine area. See attached video. The noise stops after about 2 minutes or so. Any ideas on what component could be causing this? Water pump? Power Steering Pressure?

  2. #2
    Join Date
    Aug 2014
    Location
    Lawrence Kansas
    Posts
    1,113
    My Cars
    2004 325XI/2008 GL320
    Thats the secondary air pump injecting air in to the exhaust to speed the engine warm up cycle and cut down emissions for cold starts. Sounds like yours is dying.

  3. #3
    Join Date
    Feb 2018
    Location
    Plano, Texas
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    My Cars
    2003 BMW 330xi
    Quote Originally Posted by dhurley34 View Post
    Thats the secondary air pump injecting air in to the exhaust to speed the engine warm up cycle and cut down emissions for cold starts. Sounds like yours is dying.

    Yes thats exactly what the problem was. Thanks for reply. Part was $400.

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