Not sure I'm aware of the role the egr cooler plays as far as contributing to the white smoke. I have heard that the CAC can develop a small pool of water in the bottom that maybe sucked through the turbo and WaLa......smoke!
I'm going to assume that a good percentage of the members on here with the 6.4 have experienced the "white smoke" either during regen or non regen. My question is after deletes and tune (DPF) has this also eliminated the smoke issue? Thankyou!
