check the hoses for the intercooler if one, usually the bottom, comes loose it will do that.
Happened to me on my Duramax.
"What we obtain too cheap, we esteem too lightly: it is dearness only that gives every thing its value. Heaven knows how to put a proper price upon its goods; and it would be strange indeed if so celestial an article as freedom should not be highly rated." Thomas Paine
