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White smoke out tail pipe.

8365 Views 7 Replies 8 Participants Last post by  Snipesy
Has anyone seen white smoke coming from the tail pipe while driving?
First time for me. After a few miles it started smoking a constant white fog following definitely not moisture. lasted about 4 -5 mins.
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· COTM Winner
2014 Cruze Diesel, 2007 Cobalt, 1981 Camaro Z28, 2017 Volt
7,123 Posts
I'd be suspicious of a coolant leak.

Or maybe DEF was being dumped into the SCR.
To me, white smoke has always been associated with burning coolant. It may not be, but I'd keep an eye on coolant levels. You usually can smell it in the exhaust, but I'm not sure if one could after the SCR/DPF systems of the diesel.
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