Originally Posted by LongBed
I should have mentioned its a 2004 5.4L.
The acceleration surges, but not the rpm's on their own.
I don't think I really have that many vacuum hoses, and it only happens every once in a while. I was hoping its not a computer problem, but perhaps it is. Maybe tranny?
If the acceleration surges but the rpms don;t, then ya have a problem, cause if one accellerates & rpms don;t increase, I would check to see if the truck was running.
Now on a serious note, with your truck being a 2004, it is just old enough to begin routine problems if the schedule service checks have not been met.
Such as plugs, wires, fuel filter, PCV, even an O/2 sensor, I would recall if any of these had or have been changed & begin here.
You did not list if any of these have been replaced, the miles on the engine, or if you have had your CEL come on.
It does sound like a minor problem now & hopefully you can nip it in the bud before it does leave ya on the side of the road.
I beleive Ford is an awesome truck, but like any, we need to keep them maintained.
Good luck & best to you