328- High Pitched Squeeling Noise | FerrariChat
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328- High Pitched Squeeling Noise

Discussion in 'Technical Q&A' started by Freestyle, Apr 28, 2008.

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  1. Freestyle

    Freestyle Rookie

    Dec 24, 2007
    21
    #1 Freestyle, Apr 28, 2008
    My 328 just started a high-pitched squeeling noise coming from the passenger side of the engine. As I accelerate between 2500 and 4500 rpms I can hear the noise echoing off of walls, fences and other vehicles from my right ear. If I'm cruising at a constant speed or slowing down there is no noise. Sounds like metal, kind of like those minimum brake pad indicators when they start touching the rotor. There is no apparent change in performance. When I'm not in gear and I punch the gas pedal it may or may do it, but is much more quiet. Could it be a water pump starting to go?
     
  2. JohnnyS

    JohnnyS F1 World Champ
    Owner Silver Subscribed

    Oct 19, 2006
    15,280
    Illinois
    Full Name:
    John
    #2 JohnnyS, Apr 28, 2008
    I would check slipping belts first. A belt that isn't tight enough will slip at higher rpm.
     
  3. umsneeze

    umsneeze Formula Junior

    Nov 16, 2004
    449
    Knoxville, TN
    #3 umsneeze, Apr 28, 2008
    My water pump belt squealed at high RPM a few times before the water pump seized. I would check the water pump and belt tension.
     
  4. marcro

    marcro Karting

    Oct 25, 2007
    68
    Canada
    Full Name:
    Mark Cross
    #4 marcro, Apr 28, 2008
    My 85 308 squealed when cold only then went away, found the alternator belt way loose after 1k on major service, was new and will stretch a bit for the first few hundred miles. Check these first. Bit of a job, I took the wheel off and the inner liner as I had no hoist.
     
  5. irondogmike

    irondogmike F1 Rookie

    Sep 8, 2006
    2,532
    San Diego area
    Full Name:
    Michael Tucker
    #5 irondogmike, Apr 28, 2008
    I have a 85qv and just did a maj all fluids changed I've changed oil from kendall 20/50 and went to redline 5/30,well in the morning or the first time its started up in the day it squells to but stops after a 1 minute or 2,I was told its coming from the oil cooler because its a thinner oil,
     
  6. sammyb

    sammyb Formula 3

    Jun 23, 2006
    1,857
    Where wife tells me
    Full Name:
    Sam
    #6 sammyb, Apr 28, 2008
    Belt probably just needs to be tightened. If it does it when cold (like on start-up) and when you prod the gas, or when you have the vent blower on, it's probably just the tension. When the temp outside is cold, belts squeal a little more easily. In fact, leaving the Italian car show yesterday, my 328 did the same dang thing. I'll retension it this week.
     
  7. jonesdds

    jonesdds Formula 3

    Aug 31, 2006
    2,163
    SB,CA & Park City UT
    Full Name:
    Jeff
    #7 jonesdds, Apr 28, 2008
    When was the last waterpump rebuild? Sounds like a belt problem like others of said, though.

    jeff
     
  8. Freestyle

    Freestyle Rookie

    Dec 24, 2007
    21
    #8 Freestyle, Apr 29, 2008
    Thanks to all for the great feedback. I will check the belts, etc. and get back to you with an update. The noise appears to occur when it is hot and cold. If I am low on transmission/gear oil, could that make a high-pitched sound? Thanks again!
     

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