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stalls when idleing 850 1996

posted by  john850 on  Sat Nov 22 04:52 CST 2008
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last visit: Sat Jun 19 13:56 CST 2010
[RELATED]

ive posted this before but im still haveing the problem and cant figure it out. my car when its cold will either stall or drop to about 300 rpm when at a stop or at low speeds like when coming to a stop. its an automatic and i have cleaned both the throttle body and the IAC there are no hose leaks and the air filter is a K&N ad is clean. i know the IAC is running because i can hear it humming with the key on. It has a new Catalytic converter and sensors. if anyone can give me any help i would appreciate it because i can think of anything else.thanks.








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    stalls when idleing 850 1996

    posted by  tom 240 on  Sat Nov 22 22:57 CST 2008
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    last visit: Wed Jun 17 18:20 CST 2009
    [RELATED]

    Hi, how are your plugs, gasoline pressure when idling and injectors, cleaned?
    Is your new cat from volvo? could it generate too high back pressure? did this start just after new cat installation?
    br Tapsa








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      stalls when idleing 850 1996

      posted by  john850 on  Sun Nov 23 04:58 CST 2008
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      last visit: Sat Jun 19 13:56 CST 2010
      [RELATED]

      no it has been going on about a week before the new cat i also heard that sometimes it can be a bad MAF sensor have you heard of this








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        stalls when idleing 850 1996

        posted by  leda on  Fri Nov 28 02:13 CST 2008
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        last visit: Tue Jan 27 10:20 CST 2009
        [RELATED]

        I've had the same problem with my '96 850 wagon (manual, 280K miles) for several months now. 'Have to let the engine warm up for a couple of minutes before I take off, or else it'll stall. 'Took it to the Volvo dealer, he thought it was either a vacuum leak or MAF sensor. He ruled out the vacuum leak, and installed the MAF sensor for $540. Still, the problem persists. I will take it back next week.








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    stalls when idleing 850 1996

    posted by  checksix on  Sat Nov 22 15:04 CST 2008
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    last visit: Fri Aug 10 22:07 CST 2012
    [RELATED]

    Does it make any difference if you put in in neutral, when coming to a stop? This might validate it is an engine control issue and not a transmission one.

    Jerry
    01 V70 T5a







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