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Hello guys, new to the group. Just bought an 04 GMC 2500HD Duramax; now have 1500mi on it. Yesterday while stopped at a light, I noticed blue smoke coming from the exhaust. After a few moments it stopped and I haven't seen it again. Since this is my first diesel, I'm not sure if that was normal or not?
 

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Welcome dalwolf ....


Could be a couple different things .... Since it's brand spankin new your rings are still seating ....


Also it could just be fuel quality to if the engine was still a bit cold ,partialy burned fuel possibly ....


My truck will on cold mournings smoke a blue haze at idle .... No oil consumption issue in 36 k miles ....


If it persist or you see excesive oil consumption then let the General take care of it,I doubt you'll have to ...


Good luck ,ease the seat back and enjoy your new ride ....


Mac
Edited by: Mackin
 
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