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Thread: Strange sound coming from engine

  1. #1
    Join Date
    May 2009
    Location
    Sydney
    Posts
    25

    Strange sound coming from engine

    Hey all,
    Last night I noticed a strange whirring sound coming from the front area of the car when the car is rolling. It sounds like the sound of a mountain bike peddling up a hill. I originally thought I had a flat but the pressures are all fine.
    It only happens when the car is rolling and doesn't matter if it is in gear or not and with the engine off.
    The car only has 26k on the clock.....wheel bearings? CV's? I am stumped...
    Any advice is appreciated as I don't really want to go to vw for this (out of warranty)

  2. #2
    Join Date
    Jun 2005
    Location
    Peregian Beach
    Posts
    672
    Is it the cooling fan(s)? Do you hear the sound with the ignition and air conditioning off when the car is cold?
    2001 Bora 4 Motion Sport now used by number two son
    2011 Skoda Octavia Scout now with Underground Performance tune
    2010 Jetta 125 tdi dsg for the misses - Impressed
    2006 Polo GTI - Enhanced by some of Gav's magic - Absolutely loving it

  3. #3
    Join Date
    May 2009
    Location
    Sydney
    Posts
    25
    Thread Starter
    It's def not the fans, the sound of the whirring is directly proportional to the speed of the car, the air con is off.

  4. #4
    Join Date
    Jan 2009
    Location
    blankedy
    Posts
    4,058
    Could be a brake issue. If the pad is sitting strangely, it could be the friction although the stock pads and rotors are very quiet.

    Any mods?

  5. #5
    Join Date
    May 2009
    Location
    Sydney
    Posts
    25
    Thread Starter
    No mods, I'll jack her up this afternoon and give the rims a spin and see if I can source it

  6. #6
    Join Date
    Oct 2009
    Location
    new south wales
    Posts
    104
    This may be a long shot, but I had a similar noise from underneath one of my older cars. It would speed up/slow down depending on the speed. Finally looked under the car and found a strip of that plastic reinforcing some boxes have around them. It was lodged in the lower suspension arm and rubbing on the inside of the tyre. Similar to when you stick some card into the spokes of a bike; the faster you go, the more noise it made.

    Hope your problem is as simple as this. Good luck...

  7. #7
    Join Date
    May 2009
    Location
    Sydney
    Posts
    25
    Thread Starter

    hmm jacked her up couldnt find anything rubbing....give it a week and see what happens !

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