308QV Humming sound while turned off? | FerrariChat
Buy

308QV Humming sound while turned off?

Discussion in 'Technical Q&A' started by fiatbrett, Apr 11, 2011.

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

  1. fiatbrett

    fiatbrett Karting

    Aug 20, 2009
    98
    Tallahassee, Florida
    Full Name:
    Brett B
    #1 fiatbrett, Apr 11, 2011
    I have a 1985 308QV. After taking it out for a drive this weekend I parked it, disconnected the battery and was out in the garage for a bit. I noticed a humming or whirring noise about every minute or so from the engine bay. This went on for a about an hour. I poked my head in there and it seemed to be coming from under the airbox near or in the CIS fuel distributor. It wasn't the frequency valve.

    Has anyone experienced this sound on their car before? What or how could something be making the noise with the battery disconnected? Thanks.

    By the way, the car was hard to start after that, but eventually did running rough and then smoothing out to a nice idle.
     
  2. 2NA

    2NA F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 29, 2006
    18,221
    Twin Cities
    Full Name:
    Tim Keseluk
    #2 2NA, Apr 11, 2011
    Last edited: Apr 11, 2011
    Sounds like a fuel injector was leaking down. Probably wouldn't have happened more than once though.
     

Share This Page