Buzzing throttle

Discussion in 'Engine' started by stevesey, Oct 18, 2008.

  1. stevesey

    stevesey Hardcore MB Enthusiast

    Messages:
    2,969
    Joined:
    Sep 3, 2007
    Location:
    Bristol
    Car:
    Alfa 156 1.8TS
    If I turn the ignition on, the throttle buzzes. It's always done it, but seems to be noisier now. Sounds like the stepper motor that actuates the throttle is flicking between two positions continually. Is this normal? Or is there something I can do to fix?
     

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