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blue and black smoke

  1. 6.0 Motor problems
    My name is Neal and I originally posted this on general info so, I thought that I would repost I have a 2003 Excursion 6.0 non deleted and no mods. 110k on the engine. Out of no where it started puffing an excessive amount of blue smoke after a few mins at idle. It seems to let up a little...
  2. General 6.0L Discussion
    I have an early 03 6.0 that has not been deleted and scratching my head. Truck started all at once puffing a ton blue smoke after warmed up and when you hit the throttle it blows a ton of black smoke. I think that I smell diesel when I stop at a light. I have researched all forums and can't...
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