Re: 2002 F-350 7.3 will not start..
Sounds like an idle air control sensor (IAC). I know they're on the gas engines, but I'd see if there's one on the 7.3L. If so, it's probably your culprit.
'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!