Mike08ss/tc

iTrader: (1)

I got on my car hard yesterday and looked at the boost guage and it was only reading 18psi when my tune is set for 23psi. I looked back when i got out of boost and there was a sloud of smoke. That pretty much means my k04 is done with. Or could i possibly have a head gasket issue. Please help

Mike

Coblasts

What color was the smoke?
White = coolant in the cylinders(head gasket)
Blueish= oil ( blown piston or rings)In you case seal in the turbo or blow by as well ,boost pressure leaking into crank case and forcing oil up into the intake through the crank case vent.
Black = to much fuel ( bad sensor)

Mike08ss/tc

iTrader: (1)

the smoke is a white. I checked everything today at work no coolant leak anywhere. Put coolant tracer in oil nothing. I checked my compression 3cyclinders across the board were 121-125 and the 4th cyclinder was 150. Have not go a chance to do a leak down yet. Car wont build more than 10psi with stock computer and still throws out alot of smoke when let off throttle.

Chevycobaltss3

iTrader: (2)

Sounds like either head gasket issue or somehow u cracked the head or block in between the sleeves all three which is awkward......... More then likly ure issues along ure headgasket