I am very new to this forum, and would like to thank all of you in advance for your assistance... Ok, here we go. I have a 2003 Expedition with the 4.6ltr Triton V8. It has 52000 miles on it, and ran well until about one month ago. it started when I was driving about 40 mph, and the RPMs were around 1200, as I pressed the gas lightly it felt as if it was jumping or shaking, if i press the gas to the floor it struggles for a second or two then takes off. The next day I was driving the same route but could not replicate the problem. A few days later the same thing, but during acceleration it was really jumpy and rough running, the check engine light came on, blinked a few times than the light shut off and the truck ran fine. This same routine has been happening for about a month now. I had the computer read in hopes that a code was stored, no luck.. Please point me in the right direction, I dont want to go an replace all the plugs and coils if only one is bad or if it is somthing totally different. Please help, I have a business trip out of state that i have to drive myself and my co workers, I am getting a little leary of that idea..