F355 noise at cold start-up | FerrariChat
Buy

F355 noise at cold start-up

Discussion in '348/355' started by judgejohn, Dec 31, 2012.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. judgejohn

    judgejohn Karting

    Jun 3, 2010
    101
    South Florida
    Full Name:
    John
    #1 judgejohn, Dec 31, 2012
    When I start the car cold I always hear a high-pitched whine coming from the engine, which goes away after about 1-2 minutes. It isn't loud but I always notice it. Is this typical? A pump that runs for a brief period or something? Thanks for any insight.
     
  2. apex97

    apex97 Formula Junior
    Owner

    Nov 25, 2006
    593
    Stockbridge, GA
    Full Name:
    Edward Zabinski
    #2 apex97, Dec 31, 2012
    Its the exhaust air injection system, totally normal. It is designed to reduce emissions by helping the cats light off sooner.
     
  3. jgriff

    jgriff Formula 3

    Jun 16, 2008
    1,125
    Houston, TX
    #3 jgriff, Dec 31, 2012
    I've always wondered what that noise is too. Thanks for the info.
     
  4. judgejohn

    judgejohn Karting

    Jun 3, 2010
    101
    South Florida
    Full Name:
    John
    #4 judgejohn, Dec 31, 2012
    Thanks for the explanation.
     
  5. Extreme

    Extreme F1 Rookie

    May 26, 2010
    2,515
    Northern Utah
    Full Name:
    Erick
    #5 Extreme, Dec 31, 2012
    I had the same question when I first got my 355...
    Love this forum. :)
     
  6. apex97

    apex97 Formula Junior
    Owner

    Nov 25, 2006
    593
    Stockbridge, GA
    Full Name:
    Edward Zabinski
    #6 apex97, Dec 31, 2012
    You may see some cars, especially 2.7's where this system has been removed when the owner has removed the cats..also many European cars were not equipped with it from Ferrari at all.
     
  7. Prancinghorse17

    Prancinghorse17 Karting

    Oct 14, 2012
    118
    CFL
    #7 Prancinghorse17, Jan 2, 2013
    I have a 2.7 car with a Tubi and it has the whine as well on cold start. At first I thought it was a problem, but when I realized that the noise went away each time no more than a few minutes after cold start and never came back, I just chalked it up to normal engine warm up. Nice to know exactly what it is now!
     
  8. andyw355

    andyw355 Karting

    Jul 5, 2011
    72
    Australia
    Full Name:
    Andy
    #8 andyw355, Jan 3, 2013
    Can also be used as a handy warmup timer. When the pump switches off I drive off, of course not cutting loose until engine is up to normal operating temp.
     

Share This Page