I have a 98 6.5 and it has an intermitant shut down but returns to normal running within a second or two.http://www.dieselplace.com/forum/smileys/Angry.gif Happens every couple of days then runs good for a couple weeks .

need more info. check engine light? stalls and needs restarting or bucks/hesitates? during acceleration or deceleration? walk us through what happens and we should be able to point you in the right direction