Spn 3936 fmi 2

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by eaglesweeper, Jan 27, 2022.

  1. eaglesweeper

    eaglesweeper Bobtail Member

    May 14, 2019
    2017 international 4300 with a code spn 3936 fmi 2 what I would like to know if that is a major issue that needs to be address. If i read it right it has something to to do with the dpf ( I could be wrong) a lot of black soot in the pipe with occasionally heavy smoke from the exhaust, that way I can cover my butt.
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