hi i have a 06 powerstroke 6.0 and when my truck has not come up to temp it dumps white smoke out of my exhaust when i go to take off seams to get better when my truck comes to temp also when i lett off the gas peddle when the motor is still reved up my turbo makes a nocking sound and i was wondering if the 2006 moddle had some kind of blow off valve to dump not used boost my 2003 f-550 work truck does not do this?

 

The white smoke sounds like either coolant from the egr cooler or stuck spool valves on a few injectors. The turbo noise you here is called a turbo bark. When you let off the throttle sudenly the boost has to bo some where. Right back out the intake.