I have a 2003 Chevy 2500HD with the 6liter. the other day i was driving and had the cruise at 55 when the cruise all of a sudden shut off and truck went to around 1500 rpm and i had no pedal i could put it to the floor and it wouldn change i shut it off waited a few minutes and started it and it ran fine went to advance parts store and they said it was the mass air flow sensor so i replaced it. it ran great and now a week later the same thing happened again. anyone ever had this problem? or herd of it? whats the fix? any help is great help thanks in advance for any help!!!!