I just got back from Revelstoke BC, ski-dooing, I hauled out six snow machines in a 28ft enclosed trailer, guessing around 9000 pounds total. On the way home my truck would, with the cruise set at 70mph, slowly loose speed and had no throttle resonse for a bout 4-5 seconds and then the sound of the waste gate "popping" and then we would be back to normal power.

It did this three times, all guages were in order, pyro, boost, and tranny temp.

Anybody else ever run across this and what was the cause??? Is my Dr. P on the way out???