I recently purchased a used 6.7. It's a 07 and has 219,000 miles. DPF delete and straight pipe. I was driving it home lastnight and it lost almost all it's power and was pouring out black smoke. And the turbo is also whistling when it's just sittin there idleing. Anybody know what's wrong?

 

I would say turbo is shot. Check codes.....

 

Well it did it one time a few days ago and turned it off and cranked it back up and it was fine. Now it's done it again and can't get my power back now and still pouring smoke