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Black stuff coming from exhaust????? V70-XC70 1998

posted by  Mybricks on  Wed Dec 14 02:31 CST 2005
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last visit: Mon Sep 22 01:55 CST 2008
[RELATED]

1998 V70T5 Automatic, 220k

Cannot see this black stuff while driving, but it leaves black spots on the wall and fllor while warming up in the morning. It seems to be getting worse, over the last month.

Everything else seems fine at this time.

Any ideas?

This is for a friend, not my car, but i have access to him if you have further questions. Thanks -








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    Black stuff coming from exhaust????? V70-XC70 1998

    posted by  someone claiming to be Michael on  Mon Jan 9 09:19 CST 2006 [RELATED]

    Reporting back: That is my car with the black stuff...I tried running it harder than normal for a round-trip to work, about 80miles total. The temp guage stayed at 3 oclock and now the black gunk is gone. I guess all it needed was to be run hard instead of babied...Thanks for your help!

    Michael








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    Black stuff coming from exhaust????? V70-XC70 1998

    posted by  KlausC on  Wed Dec 14 06:24 CST 2005
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    last visit: Fri Oct 24 10:15 CST 2014
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    This depends on the driving habbits. If most of the trips are short, less than 10 minutes, the engine does not get hot enough to burn all of the junk out of the exhaust. Take the car out and run it for an hour, down the highway at reasonable speed. Keep the rpms above 2500, use 3rd gear if you have to.
    If your friend does drive hard, is the temp gauge at 3 o'clock? If not get a new thermostat asap.

    Klaus
    --
    (V♂LV♂s 1975 164, 1995 854T, 1998 V70R)








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    Black stuff coming from exhaust????? V70-XC70 1998

    posted by  someone claiming to be ksg on  Wed Dec 14 04:42 CST 2005 [RELATED]

    From a stone-cold start - any engine will normally run quite rich for a couple of minutes. How are the oil usage and fuel economy?







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