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Thread: Not kicking over when hot

  1. #1
    Join Date
    Jun 2007
    Location
    central coast. Lake Macquarie. (Not Port Macquarie.)
    Posts
    686

    Not kicking over when hot

    Team.

    Vehicle MY07 Jetta DSG 103kw

    Had a search, have not found what is happening or possibly about to happen.

    Has occurred twice in two weeks,after the car has been running for approx an
    hour,(doesn't seem to occur on shorter trips), when the car has been turned off
    and left for short period say 5-15 minutes ,when then trying to restart the motor it will
    turn over but not fire, you can try a number of times but will just crank over and not fire up ,
    If you push the accelerator down while cranking the motor comes to life.

    Have no display warning symbols at this stage.

    Had a look at a few injector failure threads but they seem to be mainly for the 125kw motor.

    Maybe a sensor somewhere ???

    Thanks All.

  2. #2
    Join Date
    Dec 2009
    Location
    Kew, VIC
    Posts
    664
    May be wear on the camshaft resulting in a marginal fuel supply at idle — if so the failure to fire will gradually become more frequent.

    Pushing the pedal down feeds more fuel, hence it starts.

    (Just guessing, of course.)

  3. #3
    Join Date
    May 2005
    Location
    Gosford Central Coast NSW
    Posts
    4,386
    More than likely this is a sensor issue, or an injector issue. I would get it scanned as soon as you can. I believe there were some people that reported similar symptoms just before injector failure (caused by the wiring loom fault).

    Camshaft wear was really only a problem for a certain production run of engines, mostly in north America.

    Quite unlikely to be a mechanical fault.
    '07 Touareg V6 TDI with air suspension
    '98 Mk3 Cabriolet 2.0 8V
    '99 A4 Quattro 1.8T

  4. #4
    Join Date
    Dec 2008
    Location
    Sydney/Canberra
    Posts
    5,523
    Users Country Flag
    Check battery voltage when cranking, as well as cranking speed. Cranking speed needs to be higher than 280rpm before it'll fire.

    Could also be a starter motor on it's way out.
    '07 Transporter 1.9 TDI
    '01 Beetle 2.0

  5. #5
    Join Date
    Jun 2007
    Location
    central coast. Lake Macquarie. (Not Port Macquarie.)
    Posts
    686
    Thread Starter
    Thanks Guys will let you know the outcome shortly.

  6. #6
    Join Date
    May 2005
    Location
    Gosford Central Coast NSW
    Posts
    4,386
    Quote Originally Posted by gldgti View Post

    Quite unlikely to be a mechanical fault.
    Although Umai-Na!! presents some logical options
    '07 Touareg V6 TDI with air suspension
    '98 Mk3 Cabriolet 2.0 8V
    '99 A4 Quattro 1.8T

  7. #7
    Join Date
    Mar 2013
    Location
    Canberra
    Posts
    11
    Users Country Flag
    How did you go, I'm in the same boat with my jetta.

  8. #8
    Join Date
    Oct 2008
    Location
    VIC
    Posts
    234
    Same here. Please let us know what the problem is

    Sent from my C6903 using Tapatalk

    -- Drive like a fat girl on Facebook... Get those angles right and know your sweet spots! --

  9. #9
    Join Date
    Jan 2014
    Location
    Western Suburbs, VIC
    Posts
    8
    Users Country Flag
    I have the same issue with my wifes Audi A3 (05, BKD 103KW)

    It's driving me crazy, have to crank for seconds sometimes. If i abort cranking, and then crank again, it pretty much starts instantly

  10. #10
    Join Date
    Jun 2011
    Location
    sydney
    Posts
    423
    Users Country Flag

    cam sensor

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