My wifes 15 passenger van does the same thing with a 5.9 and 44RE, surges a bit with the cruise on but absolutley will not do it when my foot is in charge. I graphed the TPS signal, RPM, MPH, lock up... on my scanner and no blips or anything showing up there have not had time to dig any deeper

I am not causing global warming, I am just trying to hold off a impending Ice Age!