Waiting for the truck to cool off so I can check the CAC boots....I seem to be hearing a lot of "woosh" on shut down. Sounds like it's coming from beneath the air cleaner box.
You're probably on the right track. Smoke machine is handy for that sort of thing too.Waiting for the truck to cool off so I can check the CAC boots....I seem to be hearing a lot of "woosh" on shut down. Sounds like it's coming from beneath the air cleaner box.
Good possibility.Well, the plumbing looks to be OK. I get 0% EGR error as one of the few PIDs I can monitor with the scan tool I have. Looks like it's gonna go in to see the dealer.
Whaddya think Vince...sticky turbo vanes/unison ring?
Whats happening, is on shutdown, the turbo is still spinning, but with no exhaust driving it. The pressure thats been developed is rushing by the vanes. With stuck or binding vanes, its magnified into the sound you hear. A slow vgt actuator can do the same thing.I am getting that whoosh occasionally also. I am interested in what you find. I really don't see any issues w/ the turbo by watching the boost gauge, but then it is only on shutdown (as you described).
Whats happening, is on shutdown, the turbo is still spinning, but with no exhaust driving it. The pressure thats been developed is rushing by the vanes. With stuck or binding vanes, its magnified into the sound you hear. A slow vgt actuator can do the same thing.
Stuff like this (the techs response) makes my job harder. Theres too many things that will cause turbo failures. Sounds like this tech is just not a fan of the egr cooler.The tech asked me if I had an EGR cooler failure in the past, which I did.....said that was likely the cause of the damage.