430 - Whine in Scud? | FerrariChat

430 Whine in Scud?

Discussion in '360/430' started by MikeMonty, May 2, 2021.

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  1. MikeMonty

    MikeMonty Karting

    May 28, 2004
    122
    Nashville TN
    Full Name:
    Mike
    I am getting an intermittent high pitch whine in my Scud. Any idea on what is causing it?

     
  2. 24000rpm

    24000rpm F1 Rookie

  3. MikeMonty

    MikeMonty Karting

    May 28, 2004
    122
    Nashville TN
    Full Name:
    Mike
    Radio power is off so don't think it is the speaker.
     
  4. vv23

    vv23 Karting

    Jan 8, 2009
    245
    Edmonton, Alberta
    Full Name:
    V V
    Sounds like sticky relay somewhere
     
  5. Scottslaw

    Scottslaw Formula Junior

    Try a battery reset? (turn off at the frunk for about 5 min). Strange that its intermittent.
     
  6. luccio

    luccio Rookie

    Feb 10, 2021
    46
    San Francisco
    Full Name:
    Luccio
    At constant RPM it could sound like a dead capacitor in a voltage regulator. Does the frequency varies with the RPM? Otherwise it could be a coil of some kind - in any electric motor, relay, valve...
     
  7. MikeMonty

    MikeMonty Karting

    May 28, 2004
    122
    Nashville TN
    Full Name:
    Mike
    Frequency does not vary with RPM. Just a constant whine. However, sometimes take it out for a drive and there is no noise. It is annoying so trying to figure it out. Will try the battery reset.
     
  8. luccio

    luccio Rookie

    Feb 10, 2021
    46
    San Francisco
    Full Name:
    Luccio
    Did you locate the noise close to the instrument cluster where it is filmed?
     
  9. 24000rpm

    24000rpm F1 Rookie

    even radio is off , speaker still could whine
     
  10. luccio

    luccio Rookie

    Feb 10, 2021
    46
    San Francisco
    Full Name:
    Luccio
    If the whining comes from the speakers then it's likely a ground issue with the amplifier. However (in my little experience with this) this results in a whining pitch that follows the RPM... so I would exclude this.
     

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