Blue Smoke

Discussion in '6.9 & 7.3L IDI Discussion (Non PowerStroke)' started by John F, Apr 18, 2018.

  1. John F

    John F SDD Junior Member

    Messages:
    3
    Likes Received:
    0
    Joined:
    Nov 24, 2017
    Location:
    North Carolina
    I have a 1988 F250 4x4 Lariat. 39,000 original miles on the 7.3L engine. Was stored for 15 years after my dad passed on. I proudly inherited it. After having a new front tank installed due to fuel issues, I have been driving it local to work a couple times each week.

    Recently I’m seeing blue, not black smoke out of the exhaust while driving. Sometimes a steady trail, other times not as much. And sometimes nothing at all. Any suggestions on what to look at?
     
  2. DaveBen

    DaveBen SDD Senior Member

    Age:
    69
    Messages:
    9,537
    Likes Received:
    64
    Joined:
    May 31, 2005
    Location:
    Ukiah, California
    Blue/white smoke is oil or water. Are you using oil? Have you checked the water in the radiator?
     
  3. John F

    John F SDD Junior Member

    Messages:
    3
    Likes Received:
    0
    Joined:
    Nov 24, 2017
    Location:
    North Carolina
    Tuesday I did add a quart of Rotella oil and will monitor the level. I will have some time in a couple of weeks to do a full oil/filter change. Didn’t think to check the radiator, but I haven’t seen any white smoke. Thank you
     

Share This Page