Help: 2003 6.6L Duramax smokes after heating up...

spddemon1982

New member
Mar 14, 2010
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Lubbock, Texas
Hey can anyone help me, i have a 2003 6.6 duramax with 250,000 miles on it, the thing is, after it heats up it starts to smoke, and its not a light smoke its heavy at times, any ideas will help.:confused: