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Thread: high idle-faulty throttle body

  1. #11
    Join Date
    Apr 2006
    Location
    Hobart,Tas
    Posts
    3,412
    Users Country Flag

    Its a regular service thing to clean out the throttle body by taking off the intake pipe and cleaning around the butterfly area with something like "Wynns throttle body cleaner" in a spray can and using compressed air. A soft rag while holding the butterfly open aids this as well but be careful not to damage anything in there!
    Also, check for any air leaks.,...
    Get it checked for fault codes is a neccesity.
    Cheers, Andrew
    Par 6 Golf GTI. Coilovers, BBS CH Wheels, APR'd
    Caddy van 05/07 (colourcoded) (BRIGHT! orange!) coilovers, Konis 18in. wheels, Oettinger tuned

  2. #12
    Join Date
    May 2007
    Location
    Melbourne
    Posts
    18
    Thread Starter
    thing is this doesn't happen all the time. it happened yesterday and before that it was 2 weeks ago. i fear that when i bring the car in (probably monday) she will start behaving and the mechs won't be able to see anything wrong with it?!

    ope126: don't really use cruise control so not sure, will give it a go and let you know. yeah no hard feelings mate.

    gpk: engine works as it should (revs drop after a minute) most of the time. the car has always run on 98 ron, i assume bad fuel can't be the problem? very particular with fuel so only use bp ultimate or vortex. i'm a complete novice when it comes to working with engine related issues, should i try to clean the throttle body myself or is it safer to bring it in? re the vagcom check, would there be a charge to get that done? i'm in the eastern suburns melbourne, i service at barlowworld glen waverly.

  3. #13
    Join Date
    May 2007
    Location
    Melbourne
    Posts
    18
    Thread Starter
    turns out it was a faulty throttle body. the car was a few months out of warranty but the dealer replaced the part free of charge. just fyi...

  4. #14
    gpk_gti Guest
    thanks silverdovegti!!!! we will be stickying this thread!!! did they say the TB was reset or changed??

  5. #15
    Join Date
    May 2007
    Location
    Brisbane, QLD
    Posts
    1,764
    Users Country Flag
    Well done if that is the case...
    I was told that these are $1500 parts (throttle body)

    Glenn
    MY18 VW Passat Alltrack Wolfsburg Edition + Panoramic Sunroof + some extra goodies... (Pure White)
    MY17 ŠKODA Superb 206TSI 4x4 + Sunroof + Tech Pack + Comfort Pack + some extra goodies... (Moon White)

  6. #16
    Join Date
    May 2007
    Location
    Melbourne
    Posts
    18
    Thread Starter
    gpk: when i initially told them about the problem at my last service they reset and cleaned the throttle body, but since then the problem recurred (after being ok for about 3 months) so they replaced the faulty TB this time round.

  7. #17
    Join Date
    May 2005
    Location
    Camden, Sydney
    Posts
    7,377
    Users Country Flag
    I have a couple of mates at the main dealer and apparrently VW usually change em under warranty, but often if cleaned they are still operational.
    I`d definately try that first as they are dear.
    Camden GTI Performance. VW / AUDI Specialists
    All Mechanical Work, Log book Servicing, New and used Parts and Imports
    19-20/6 Badgally Road, Campbelltown, 2560
    02 4627 3072 or 0423 051737 www.camdengti.com

  8. #18
    Join Date
    Jul 2005
    Location
    Maroubra, NSW
    Posts
    4,301
    Users Country Flag
    Quote Originally Posted by gpk_gti View Post
    thanks silverdovegti!!!! we will be stickying this thread!!! did they say the TB was reset or changed??
    Added to FAQ and DIY!
    2015 Multivan Highline
    1969 Sunbeam Imp Sport 930cc

  9. #19
    Join Date
    May 2005
    Location
    Melbourne, Mexico
    Posts
    8,941
    Users Country Flag
    Is the snowflake not a warning of possible icing conditions. Used to get one on my Passat in the UK for that reason. I bet it would mention it in the car handbook.

    Gavin

  10. #20
    Join Date
    Aug 2007
    Location
    doncaster, vic
    Posts
    288

    happend to me but it was just a vacuum leak

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