okay i know this is f150 forum and you guys helped me alot on my 93 f150 so i was seeing if you guys knew why my 96 f250 has rough idle. When i start it up it idles rough shaking and going up and down. I have put new cap rotor plugs and wires and it still doing checked the map sensor thats good i dont know what i could be i would love to have it idle right . Any ideas? has 460 in it thanks