I was stopped on the way to work yesterday and I got a white-ish/gray-ish smoke from under the hood (both sides). Stopped, popped the hood and saw smoke/steam coming up around the intake near the turbos. Smelled like Anti-freeze, but couldn't find any signs. Let it cool for a few hours and took it home. Didn't do it again, the car runs fine as always, left it in the garage, pulled it out this morning, nothing on the floor...........left it home in case, but.........any ideas?

 

upper or lower turbo coolant hose

 

I had one of the coolant lines going to the turbos burst on me, I'm pretty sure that it leaked a little before bursting... had the same symptoms before it broke and not long after I had a BIG cloud of steam come up and the temp gauge started to move. Pulled it right over and luckily was really close to home so I pushed it the rest of the way.

Those hoses get quite a bit of heat, I wouldn't be surprised if it's one of the two down there

They are a big pain to replace, but if you do one, you might as well do the other while you're down there

 

check the quick disconnect that goes to the engine block from the heater core. it's below and to the back of the dipstick. if this pops off it will be pointing to spray coolant on your downpipe/precat.

 

First of all, are you sure it's coolant?