My 6.5 has a problem. I bought it with 180K miles on it and now it has
230K. Today, I noticed a general lack of power and a great deal of black smoke when I drove over 50 MPH, and it just doesn't sound right. I didn't really notice at first but, when I listened to the engine, I failed to hear the familiar sound of the turbo running. I had heard that the turbo unit were good for about 100K miles or so and I do not know if the one that is on there now is the original or not (probably not). Based on the sounds and the performance issue, I believe that the turbo is dead.I have not checked the codes lately but there was no 'check engine' or 'service engine' idiot light when I was driving.
What is the best way to check the turbo unit and is this sound like I'm on the right track?
Thanks,
Chip