348 "whining noise" in passenger compartment | FerrariChat
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348 "whining noise" in passenger compartment

Discussion in '348/355' started by dahveedem, Jun 29, 2012.

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  1. dahveedem

    dahveedem Formula 3

    Mar 12, 2012
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    David
    #1 dahveedem, Jun 29, 2012
    And no, it's not me whining as I've been accused of by some friends.

    Inside the passenger compartment I can hear what sounds like a noisy speedometer cable - kinda like what I heard as a kid in my parent's old Chevy. Sorry, don't know how to describe it any other way than that.

    It appears to be coming from forward of the center air vents.

    Before I start ripping the dash apart anyone else had this issue? I'm guessing it's a fan motor and hoping a few shots of WD40 will quell my annoyance.

    Thanks.

    David
     
  2. Miltonian

    Miltonian F1 Veteran

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    Jeff B.
    #2 Miltonian, Jun 29, 2012
    Before you rip the dash apart, try looking in the front trunk, where the fresh air inlet chamber is located. The "squirrel cage" for the fan is right there, and you might be able to pinpoint the source of the noise. If you're lucky, something (a leaf?) might have blown in there and can be easily removed.

    Does the noise stop or change in pitch as you turn the fan on/off/high/low?
     
  3. dahveedem

    dahveedem Formula 3

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    #3 dahveedem, Jun 29, 2012
    Miltonian,

    Thanks for the reply. I don't notice a change in the tone with the different fan settings. I do notice it with engine RPM. Which is odd.

    David
     
  4. Miltonian

    Miltonian F1 Veteran

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    #4 Miltonian, Jun 29, 2012
    Area of the center dash vent? Noise changes with engine rpm? Is it possible that it's coming from your stereo?

    Another thought might be that you have an air pocket in the coolant lines to your heater core, and you need to bleed the cooling system - but I wouldn't think this would make a "whining noise". There is also an electric water pump that recirculates coolant through the heater core - maybe this pump is making the noise, particularly if it is "cavitating" through an air pocket.
     
  5. vvassallo

    vvassallo F1 Veteran

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    #5 vvassallo, Jun 29, 2012
    I have a front seat whine above 120 mph. Only happens when my wife is riding along.
     
  6. dahveedem

    dahveedem Formula 3

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    #6 dahveedem, Jun 29, 2012
    Lmao!

    You sure that's not when she sees the maintenance every 3-8 years or 15k miles?

    Mobilized reply by David
     
  7. DaveK

    DaveK Rookie

    Jul 6, 2006
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    #7 DaveK, Jun 29, 2012
    Not sure if it's the same, but I've also noticed a whine from mine over the last couple of months. I would describe mine more as the kind of whine I'd expect from an electric motor. Changes with engine rpm, although I've not figured out where mine comes from - not even sure if it's in front of me or behind.
     
  8. Moiluck

    Moiluck Formula Junior

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    #8 Moiluck, Jun 29, 2012
  9. ndpendant

    ndpendant Formula Junior

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    #9 ndpendant, Jun 29, 2012
    David, could be the ground to the alpine unit is loose. check there.
    it may change with rpm changes.
     
  10. dahveedem

    dahveedem Formula 3

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    #10 dahveedem, Jul 2, 2012
    Moiluck,

    Actually, it's higher up in the dash. Sounds like it's right behind the center vents.

    Paul,

    it's there with the radio on or off -- but thanks about the ground. I needed a reminder to check that as I do get a whine from the radio when it's on, plus I need to look at the driver's side woofer as it's not working. But I rarely have the radio on.. the car makes it's own music which I find more tasteful than the radio.

    Thanks for the ideas.... still searching.

    David
     
  11. pnicholasen

    pnicholasen Formula 3

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    #11 pnicholasen, Jul 3, 2012
    remember when checking the non functioning woofer, if the speaker is present and it works (touch the 2 speakers wires to a small battery....should make a quick "pop" sound), then next most likely cause is the area of the wiring harness plug from the door to the car body by the door hinge.
     
  12. dahveedem

    dahveedem Formula 3

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    #12 dahveedem, Jul 3, 2012
    Thanks. I'll have to check that harness. The woofer is good. I pulled it and stuck it in a working enclosure in my house so I know it's good. I'll have to look for that harness tonight.
     
  13. dahveedem

    dahveedem Formula 3

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    #13 dahveedem, Sep 29, 2012
    Finally! I found it. I guess the stars aligned today and/or the hangover I had this am made me really pay attention. :)

    Points go to Moiluck!

    It's coming from the shifter. It's really prevalent in 3rd gear around 4k rpm.

    Now the challenge is how to silence it. It doesn't appear anything is loose but it's almost like it's vibrating. Any ideas?
     
  14. f355spider

    f355spider F1 World Champ
    Owner Rossa Subscribed

    May 29, 2001
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    #14 f355spider, Sep 29, 2012
    Not sure of the differences in a cable operated shifter like the 348, but on my 355, it required replacement of all the various bushings to tighten things up and eliminate any rattles and buzzes from the shifter mechanism
     

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