F250 Diesel 4x4
Like the other posts said it could be a CPS (camshaft position sensor). I had similar issues with my 2002 F350 and it was the CPS but it has the 7.3 I'm not sure if the 6.0's had the CPS issues but I could be something to look into. Also may try looking at the IPR again I'm not real familar with the 6.0's but something to look into. http://www.thedieselstop.com/forums/ has a ton of info on Ford diesels and they do have several areas dedicated to the 6.0


