Well ive been just driving the truck around town lately and romped on it quite a few times and it seems fine. The only thing I can think of that wad messing with the boost was the wastebate. Maybe it got stuck halfway open ot sonething

Thanks for the help guys

And the new turbo should be going on in the next few weeks too

 

chinese or USA wastegate?

 

USA, JGS 40 mm

 

Well, even given that, I think you should still pull the WG off and check to make sure that the piston is moving freely. Sometimes they can get some rust/debris in there that may effect function.

 

Well towed the trailer home and the ride started fine but then it did the same thing once im assuming the WG heated up maybe? It really didnt help that of course today it decides to be 85 in VT with all the hills and 70 down in mass where its pretty flat. I stopped for lunch for about an hour and when I got back in the highway it boosting normal again so Ive got to take the WG off and look at it.