505 hesitation
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Thread: 505 hesitation

  1. #1
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    Default 505 hesitation

    Hi all,
    My 505 is hesitating at 2500 rpm and above 2500 not doing anything.

    Below 2500 all is ok.

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    Looking for some pointers

    Cheers
    1989 505 Gti II Wagon 323K and still strong.
    1990 405 Mi16
    1982 BMW 528i

  2. #2
    Fellow Frogger! 505 to the max's Avatar
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    Quote Originally Posted by monty
    Hi all,
    My 505 is hesitating at 2500 rpm and above 2500 not doing anything.

    Below 2500 all is ok.

    Looking for some pointers

    Cheers
    Fuel pressure alright? Mine suffered a similar problem (slightly higher rpm though) and I replaced the vacuum advance hose and all was well. Might be worth a look (as well as fuel delivery). Pretty sure Graham would know the exact cause.
    Chris.

  3. #3
    1000+ Posts Gamma's Avatar
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    Assertiveness training should overcome hesitation.


    Check for leaking vac hoses.
    Clean air intake and airflow sensor.
    Air filter clogged.

    I occasionally have this problem with my GTI and find that a good fuel additive, (red X, Nulon, Lucas or what ever snake oil you prefer), can do wonders.
    /// 1986 SII 505 GTI
    2003 T5 307 HDI
    2013 LandRover90
    Sacred cows make the best hamburger mince.
    If you run, you only die tired

  4. #4
    Fellow Frogger! 123abc's Avatar
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    hmmm, sounds like what mine used to do once.....

    found that the spark leads were exposed in the plug tubes, and they were earthing out. i could see a spark when looking down into the tube, arking from the top of the plug over to the tube....

    pushed the rubber cups, on the ends of the leads, back down over the plug and all was good..

    just a thought.

  5. #5
    1000+ Posts bowie's Avatar
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    Default

    Hi all,
    My 505 is hesitating at 2500 rpm and above 2500 not doing anything.

    Below 2500 all is ok.
    Sounds about right

    Works: 2003 YV Commodore (That is Cecil to you)
    Playing: R12, SuperPos, thinks It's a race car and Sunny the R12 Lego set.
    Previous: SuperGrumpy fuel spitting 504ti(ish), SuperComfortable 505 STI, SuperDoper carried my groceries Mi16, Choo Choo'd Volvo S40
    Wanted Will hoard 12/15/17 Junk.

    "More and more of less and less" - Marina Abramović

  6. #6
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    Default Thanks for the input

    Chaps,

    Thanks for the ideas will try and advise of success (hopefully ?)

    Cheers
    1989 505 Gti II Wagon 323K and still strong.
    1990 405 Mi16
    1982 BMW 528i

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