T
Thats exactly what it's doingBlow a hole in the deck of the trailer, and blow the exhaust out on the ground.
Are you getting a P0300 random misfire? If you have a friend with a Tech II, do a crank sensor relearn. Stupidest thing I've ever seen... i would get a flashing CEL between 2500 and 2800rpm with a random misfire code. The relearn fixed it.