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Car smokes after it idles a while S70

posted by  someone claiming to be oharty on  Tue Feb 17 05:30 CST 2004 [RELATED]

My S70 is a 1988 GLT 2.5L with 145K miles. Recently when i leave it running for more than 10-15 minutes it smokes when i press the accelerator. Also the check engine light is on with a Mass Air Flow error code. We changed the gas cap and the Volvo dealer hooked it up to the computer and ran tests but found nothing, so the light came back on a few miles later. Its been really cold here lately and the Air Pump has been squealing. I was wondering if any of these things have anything to do with the other. The dealer charges $62/hr for labor to test, so i figured i would try this first.

Thanks,








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    Car smokes after it idles a while S70

    posted by  bay13 on  Tue Feb 17 10:47 CST 2004
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    A bad mass air flow sensor could be your problem. Try seating and unseating, or connecting and disconnecting the MAF connector 10-15 times to clean up the contacts, and see if the code stays away.
    --
    Rich K. http://www.volvospeed.com/bay13.htm bay13@cox.net








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      Car smokes after it idles a while S70

      posted by  someone claiming to be oharty on  Tue Feb 17 14:09 CST 2004 [RELATED]

      Bay13 would that cause the smoke when it idles also?








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        Car smokes after it idles a while S70

        posted by  bay13 on  Tue Feb 17 14:11 CST 2004
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        I'd have to see the smoke, does it smell fuel rich, if yes then the MAF is part of the fuel mixture.
        --
        Rich K. http://www.volvospeed.com/bay13.htm bay13@cox.net







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