I just bought a 2004 Ford F350 with the 6.0 liter and with the weather being in the low 30's last night it took about 5 trys to get the truck to start this morning and after sitting out side all day today in the mid 40's it took about six trys before it started this evening. I'm thinking its either the glow plugs themselfs or the glow plug control box sense they dont seem to cycle as for the light stays on for less than a minute. Any ideas?
