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black soot in tailpipe

Discussion in 'Cherokee' started by 2oldjeeps, Aug 5, 2017.

  1. Aug 5, 2017 at 2:01 PM
    #1
    2oldjeeps

    2oldjeeps [OP] Well-Known Member

    Joined:
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    Member:
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    Vehicle:
    98 and 2000 xj's 99wj
    98 lifted, 00 stock 99wj just beautiful
    i noticed "dust" on my back bumper. looked in t pipe, its black,rubs off on my finger. its my 2000 cher. sport 4.0
    never noticed it b4 so i dont know when it started. runs good and smooth,plenty of power. no other symptoms but it cant be right huh?
    any help appreciated.
     
  2. Aug 5, 2017 at 2:23 PM
    #2
    dougbbbb

    dougbbbb Well-Known Member

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    Probably just an overly rich fuel mixture. However, it is normal for car engines to produce a small amount of soot since most of them are not perfectly efficient in burning fuel.

    Doug
     
    aggrex and OFFGRID like this.
  3. Aug 5, 2017 at 3:23 PM
    #3
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine Moderator

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    What Doug said. Its normal.
     
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