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HELP WITH EXAUST SOOT

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by JDELBLAZ, Mar 15, 2001.

  1. JDELBLAZ

    JDELBLAZ 1/2 ton status

    Joined:
    Feb 17, 2000
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    140
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    Location:
    STAMFORD C.T
    This is a big problem for me every morning when i start my truck this big glob of black soot blows out of the exaust and gets all over my wifes blazer it runs rich and stumbles in the morning at idle then when i blow it out its fine i changed the o2 sensor and the map sensor i got codes from but this is still going on now i noticed when i romp on it and it shifts the same black not blue smoke come out its an 89 k5 with tbi no more codes but still have problem any ideas of what it is would be great thanks in advance from a fellow k5er
     

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