I have a 02 4.6 gt that i drive everyday for my job. On the way home today from a long trip i was driving down the interstate at about 85 and my car started sputtering a little. Then worse then real bad. I noticed that when i gave it gass it got worse. I could let up on the peddle and it would be fine but i was slowing down. Didnt matter what i did i couldnt speed up at all. every time you give it gass it would cut out to the point of dying. I finaly has to pull over and it was all but dying. I killed it and it started back fine and even drove for a while with no problems. Hmmm maby it had a brain fart or something. On down the road it started it again. same thing over only this time i found somewhat of a sweet spot where it wouldnt cut out but it would at least keep up speed (70 or so). At this point i was getting frustrated and thought maby it was bad gass or something i had less than .25 of this tank so i finaly made it to a gass station and filleder up. Got back in started it up and down the road we went no problem. Even went side ways a little to see if she was all there. No problems. after about an hour more driving i had to make a couple of stops all the time thinking that everything was cool. Started up great all power was there everything. Yeppy bad gass right.... wrong. Had about an hours drive on down the interstate to get home and about 30 min into it it started it up again. Had to pull over twice kill it and start it to get it to go again. When i started up again one of the times i noticed that when i hit about 3k rpms is where it would cut out. I would hit 3k in second and it would litteraly die untill i let off the gass. I can give it gass untill i hit about 3k in 2nd 3rd and 4th and they all do it. Spit Spudder and if i keep on the gass it dies. I have no idea whats going on i can sit stoped and rev it and at about 3k it starts sputtering . No load or anything just sitting there.