White smoke from gmc duramax

[snowman160]

Lately I've been noticing white smoke from my 2011 gmc duramax.only lasts under a minute but I'm curious to why it's doin that.harder I excelerate the faster it blows it out then it just stops an I continue on smoke free till the next time it happens.what does this mean?

[jackrabbit000]

Most likely just moisture/condensation in the exhaust system.

[45/70/500]

get your injectors checked

[Fordpilot83]

Could be a pinhole coolant leak in your egr. Getter to the dr.

[snowman160]

I was told by a mechanic at the dealership it's the exaust systems way of cleaning itself out..not sure what to think.

[sparky660]

Mine will do it when it is doing a regen. If you are concerned do a coolant pressure test but I can bet the farm it's nothing to worry about.

[Okotokian]

Lately I've been noticing white smoke from my 2011 gmc duramax.

Picked it up from Crazy Francis over at Vatican City GM, eh?

[silver]

Does it smell like anti-freeze?

[JBE]

head gasket

[1899b]

its yer single lip muffler seal......

[338Bluff]

....Pope selected.

[leeaspell]

Bad jug of def?

[pickrel pat]

More than likely one or a combination of the 8 things mentioned....lol.