Once again Knoxville shop showed how to do it right and quickly ! I had a random engine fault light that would come and go, but finally stayed on and killed my pulling power. 30,000lbs felt like 45,000lbs ! You talk about dragging up the mountains ! I dropped it off Wednesday morning, Danny said to leave it out back and they would get right to it. Jimmy and Franco, two of our senior mechanics, took the time to hear me explain how the performance had deteriorated during my last trip. I went off duty and when I returned that night she was ready to roll even with a fresh service. Turned out to be an EGR problem, the truck ran like a champ last night. I just thought I would share some GOOD news and give Danny and his guys a public thank you for taking good care of the truck assigned to me.