:dunno:We are coming back from vacation and pulling our camper when the turbo really starts to whine alot and the exhaust temp is now way up and blue smoke is coming out of the exhaust. also the exhaust has a bunch of black soot on it at the exit of the pipe. Is it the turbo or what. Truck still making power but getting more and more smoke. Even at idle it smokes light blue. Thanks Wayne:dunno: