505 S1 GTI running problems when cold !!Help!!
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  1. #1
    Fellow Frogger!
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    505 S1 GTI running problems when cold !!Help!!

    Hi fellas,
    My wife's pug 505gti (executive)
    starts ok in the mornings, but when u go to take off it coughs and splutters, it will do this at every intersection or traffic lights as well, until the car roughly reaches normal operating temperature..
    It does this every morning without fail..
    any ideas???
    Can be a bit dangerous sometimes..

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  2. #2
    Gus
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    Hmm

    Two ideas, but no definite solution:

    1) If it's an executive, it's an auto right? could the problem be to do with stalling on cold transmission fluid? I know squat all about autos, so that's about all I can suggest...

    2) Warm-up condition on the GTI motor is controlled by two things.

    First is the extra air device, which is mounted on top of the thermo housing. If you pull it off, and look in one end, it should be open while cold and close up fully when it warms up. It has a little heater (that's the electrical connector) to help it warm up, but it also soaks heat from the engine.

    If it's jammed shut, your idle when cold will be low and the enrichment uneven... for a while my old STI was dodgy when cold, and it was this, but it was also noticeable while idling (you had to keep the throttle open a touch while cold, or it would threaten to stall), and it doesn't sound like that's happening with you.

    Other possibility is a general vacuum leak. The lazy man's way to find it is to take off the rubber hose from the airbox intake, block it somehow (I usually use my hand) If there's a vacuum leak, you'll probably hear it sucking air while the intake is blocked (opening the throttle a touch might help, just don't let the engine suck your hand in wink .)

    Less likely is that the coolant temp sensor is buggered. It's the one with a Bosch connector (like the electrical connector on the extra air), on the thermo housing. You can test it with an ohmmeter, hot and cold, and check the resistance changes.

    Good luck...

  3. #3
    Fellow Frogger!
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    Thank's mate, it doesn't threatnn to stall, unless you go to take off, as soon as you try and accelerate it is worse and also when there is a bit of an incline..
    But when it warms up, it is fine???
    Peugeot
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  4. #4
    nJm
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    Pug505Exec on this board had the same problem with the same model car. Hopefully he'll pop on here and let you know what he did.
    Nick
    1983 Peugeot 505 GR


    "All of its cars from the 1.1 litre 205 through the ugly duckling 309 to the 2.2 litre 505 GTi had a rightness and a righteousness about them that turned every humdrum drive into a journey. Someone, I once wrote, in the bowels of Peugeot understands handling and how a chassis should feel." - Jeremy Clarkson

  5. #5
    Fellow Frogger! 406_SV's Avatar
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    Mine does this also - drops back to about 650 rpm while in Drive - seems to rev okay in Neutral / Park. Seems to improve once the car has warmed up - but even then it isn't wonderful around 850 - 900 rpm (should be about 950rpm for GTi). I was told by a pug mechanic that these cars never ran as smooth as they should have. Does this fit with a problem with the supplementry air device? I looked at it the other day, and decided that I didn't want to pull it to pieces if it's not the right thing (me being a novice and all).

    <small>[ 25 May 2003, 10:59 AM: Message edited by: Liam Wishart ]</small>

  6. #6
    1000+ Posts silverexec's Avatar
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    Yep, mine does the same thing as yours Liam. Just thought I'd join the club...

    Richard

    <small>[ 25 May 2003, 01:02 PM: Message edited by: silverexec ]</small>
    - Richard

    Now: 405 SRI D70 '93
    - 2.0L manual
    Earlier: 505 GTi Executive '85
    - hence "Silver Exec"...
    25 GTX '86
    - manual conversion

  7. #7
    Gus
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    Are all 3 cars autos? Cold auto fluid?

    Otherwise, it could be that your extra air is jammed shut, I don't think the car should be idling this low while cold (mine doesn't.) It's not hard to take it off, just wait till the car is cold, pull the gizmo off and look in the end.

    <small>[ 25 May 2003, 08:51 PM: Message edited by: Gus ]</small>

  8. #8
    Fellow Frogger! 406_SV's Avatar
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    hmmmmmm. mine's an auto, and I'm told all the executives are too. Hopefully I don't sound too ignorant here but, cold auto fluid? How would I diagnose this? Further, how would one errr, "warm" the auto fluid? The car is kept in a garage and I live in queensland, so the temps rarely get too low...

  9. #9
    Fellow Frogger!
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    I had these problems, and several things i did fixed them all...
    -The Supplementary Air Device was stuck closed
    -The Coolant Tempreture sensor was buggered
    -There was a small vacuum leak in the AFM hose
    -The Aircon idle soleniod and the idle air screw were gunked up
    Perhaps the biggest difference was in having the mixture reset by a pug mechanic, and re-gapping the plugs to exactly .6mm.
    Old HT leads also seem to play funny buggers with these hihly sensitive engines.
    Also, it is a good investment to buy a can of Throttle Body cleaner and give the PCV system and throttle body a clean...

    Hope some of this helps
    Jason Judd
    <img border="0" alt="[Peugeot Emblem]" title="" src="graemlins/peugeot.gif" /> '85 505 GTi Executive
    <img border="0" alt="[Peugeot Emblem]" title="" src="graemlins/peugeot.gif" /> '88 205 GL 1.1

  10. #10
    Fellow Frogger!
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    Thanks Pug505exec,
    i will check my wife's car on the weekend, i'll let you know how i go.
    I am wrecking a 505gti at the moment, any odds and sodds you need??
    Cheers
    Adrian Colman
    Peugeot
    "Anything else is a Compromise!"

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