+ Reply to Thread
Results 1 to 9 of 9

Thread: Buzzing from the rear of the car! What it is?

  1. #1
    Guest Aurox's Avatar
    Join Date
    Jun 2008
    Location
    Rimini (Italy)
    Posts
    621

    Exclamation Buzzing from the rear of the car! What it is?

    Hi everyone, It's years that I occasionally ear this buzzing noise from the rear of the car (with car and keys off), days ago working on it I've found that looks like it's coming from the rear and that if the car's left under the sun or in hot days then the noise will keep for several minutes.
    What could it be? Rear diff oil pump ? or something else ?
    Many thanks

  2. #2
    Guest
    Join Date
    May 2005
    Location
    Gothenburg, Sweden
    Posts
    1,853
    Fuel tank

  3. #3
    Guest Aurox's Avatar
    Join Date
    Jun 2008
    Location
    Rimini (Italy)
    Posts
    621
    Quote Originally Posted by shogun View Post
    Fuel tank
    Really ? So it was the fuel pump ? Is this normal or I've some bad wiring/short circuit somewhere?

  4. #4
    Guest
    Join Date
    Jul 2004
    Location
    Wiltshire
    Posts
    4,849
    I expect it's coming from the breather system, I knew of a Vectra that used to moo like a cow on warm days.

  5. #5
    Guest longshanksS14's Avatar
    Join Date
    Sep 2009
    Location
    Stansted & High Wycombe
    Posts
    768
    ^^^This...

    Most likely to be the tank vent struggling to flow air / vapor and making a buzzing / resonant noise.

  6. #6
    Guest Aurox's Avatar
    Join Date
    Jun 2008
    Location
    Rimini (Italy)
    Posts
    621
    Quote Originally Posted by LongshanksS14 View Post
    ^^^This...

    Most likely to be the tank vent struggling to flow air / vapor and making a buzzing / resonant noise.
    Really ? While working at the rear sway bar under the sun I could easily ear a noise like the fuel pump priming (so lasting around 10s) and once every minute
    Will have a ceck

  7. #7
    Guest
    Join Date
    Jul 2004
    Location
    Wiltshire
    Posts
    4,849
    Pull the fuel pump fuse and see if it goes away

  8. #8
    Lover of pop-ups
    Join Date
    Mar 2004
    Location
    Chelmsford,Essex
    Posts
    19,065
    Undo the petrol cap and see if it goes away.
    "My Garage" --> http://www.sxoc.com/vbb/garage.html?...e_view&id=4740
    SXOC Member # 1190 | S13 | 1993 | Manual | White | 56K miles | Owned 16 years
    Status : Getting a major overhaul this winter. See virtual garage todo list for details

  9. #9
    Guest Unknown Source's Avatar
    Join Date
    Dec 2006
    Location
    Segensworth/Titchfield
    Posts
    4,776
    Quote Originally Posted by Jonny Wilkinson View Post
    Undo the petrol cap and see if it goes away.
    This

+ Reply to Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts