I have 92 on my 04 6.0 and have had only small issues. In fact I have been very happy with how it has performed. It's got a AFE stage 1, 4" turbo-back, and a superchip(it was set on economy, not tow, manual said it would be alright to pull up to 8,000) just to give you an idea. I was pulling about 5,000 pounds yesterday when I had my first small uh-oh, possibly more of an uh-oh. I was on about a 4 hour trip through the Texas Hill Country head home from the ranch. I was pulling up a hill running about 70-75 and something seemed to "cut-out" on me and I could hear it kinda suck for air or something. I was kinda worried about it, but didn't think to much about it. About an hour later it happened again pulling up a hill, these aren't huge hills, but sizeable. This time I noticed that when it "cut-out" , it blew a couple puffs of black smoke equal to the number of "cut-outs", around 3 or so. Didn't look fast enough to see if it did the same the first time. The rest of the trip home I cut it back to about 60 mph and it never happened again. I have no idea whats going on, except I thought it could possibly be a problem with an injector or something in the turbo going out. It was almost like it missed or something when it "cut-out". Sorry I know that was kinda long, but I hope it gives an idea of what's going on and if anybody has any ideas I sure would appreciate em.

Thanks.

 

aggie, see the thread about the other truck sputtering, there might be some info in there for you.