I have a 04 f 250 6.0 powerstroke. It was running just fine until I put a thermostat in it the other day. I put the thermostat in it cause I was told that since I was getting bad mpg and the heater wasn't working good it could have been stuck open. Any how I put that in and now the turbo is barking like crazy at low low speeds boost is building up but feels like its leaking out and blowing black smoke. I checked out all the intercooler boots no leaks.. idk where to go from here its just weird to me that changing something simple would result in something major being wrong so any advice would be helpful thanks

 

Welcome to FTE! This is the large truck forum. You should post this in the proper light truck forum, or ask the mods to move it to the diesel specific forum. You will probably get more answers.

Enjoy FTE!

David