I know nothing...
Went to pick up a 3 horse slant tonight, truck ran great as per normal, knocking down 18 mpg at 75mph. Get to KC hook up to the trailer and start home, truck is pulling good up to 70mph then hits a wall, pushing harder on the pedal and nothing. I stop and play around with the TS settings which only work for shift points on mine and nothing. There is a head wind and I was going up hill and it is a tall trailer but my truck usally does this easily. So I set the cruise at 70. after a few minutes I start hitting the set button to see if it increases. 1 bump - 1mph, 2 bumps - 2more mph. So I hit it like 10 time real fast, turbo screeches to life and I'm going uphill flying around cars passing 80mph! WTF!!!! could my pedal cause this or is it the PCM??