my alternator hates me | FerrariChat

my alternator hates me

Discussion in '348/355' started by yelcab, Apr 9, 2021.

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  1. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    12,661
    San Carlos, CA
    Full Name:
    Mitchell Le
    I am crawling under the car with the battery attached and I noticed that the alternator has a high pitch low volume hissing sound, like an electronic resonating frequency. What the hell is making this thing hissing like a snake? I am aware that some tantalum capacitors hiss when they fail, but an alternator has no caps.
     
  2. m.stojanovic

    m.stojanovic F1 Rookie
    Silver Subscribed

    Dec 22, 2011
    2,743
    Malaysia - KL
    Full Name:
    Miroljub Stojanovic
    Perhaps the Voltage Regulator. Simply disconnect the plug from it and see if the hissing stops.
     
  3. SoCal1

    SoCal1 F1 Veteran
    Owner

    Jun 14, 2011
    8,562
    SoCal LA/OC/New Mexico
    Full Name:
    Tim Dee
    Not the 348 again?
     
  4. emac

    emac Formula Junior
    Silver Subscribed

    Sep 14, 2014
    851
    upstate SC
    Full Name:
    ernest
    Congratulations if you can still hear a high pitch noise!
     
    Targatime, carnutdallas and Qavion like this.
  5. kryten2001

    kryten2001 Formula 3

    Commiserations if all you can hear is a high pitched noise.
     
    yelcab likes this.

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