I have a 2003 F150 with 5.4. I was on my way into work this morning and I was going about 55 mph and when I accelerated the truck acted like it I was pumping the accelerator. I let off and then accelerated again and it was fine. A few minutes later I set the cruise at 65 and the truck kept cycling in and out of overdrive. I took the cruise off for a few minutes then reset it and it ran fine. Any ideas?

 

Anyone?