Has anyone experienced a stumble/miss/hesitation with their Gryphon. Occasionally, I can just be driving down the road and get a terrible feeling. Its like I have a coil pack out or something. There is no rhyme or reason as to what sets it off, it just does it and the only thing that fixes it is pulling over and turning the truck off and restarting.
I tried setting the truck back to stock and ran it that way for several weeks and everything was fine. This usually happens at least once a week with the programmer on the truck.
Any ideas?!?!
2006 5.4