Chevy Express Duramax Smoking

2 messages, Last post on Nov 24, 2008 at 12:03 AM

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#1 of 2 New Express Duramax Smoking by uglyduck Mar 26, 2007 (7:21 am)
I just bought a new 2006 express van with a duramax deisel. When it had just over 1500 miles on it it started smoking periodically. It started with a small loaded trailer hooked uo at around 70 mph. Now it seems that it will smok at any time. Big clouds of white smoke. Or heavy black smoke. Its at the dealer now for the 2nd time and they can't figure out whats wrong. Any Ideas will be helpful. I know this shouldn't happen because I had an 03 silverado with same engine and that didn't smoke at all. Replies to this message: Shimonomochi (Nov 24, 2008 12:03 am)
#2 of 2 Re: New Express Duramax Smoking [uglyduck] by Shimonomochi Nov 24, 2008 (12:03 am)
Replying to: uglyduck (Mar 26, 2007 7:21 am) black smoke reasons: - oil leaks to cilinder cam (inspect level). or turbocharger problems. white smoke: sometimes on old engines cilinderhead gasket could leak with cooling fluid. fluid mix with oil(also check oil level, this case could be higher than usual.)