2005 F350 DIESEL,WAS RUNNING,SHUT IT SHUT OFF,WON,T START

dirty contacts on fuses

Hi Austin, I think you hit the nail right on the head! Replace the glow plugs:-) Regards John

gas or diesel: Diesel, fuel shutoff switch Gas, ignition module

more than likely loose or bad ground wire

If the valve lifters are quiet you most likely have oil pressure even with gauge showing "0".Sounds like the oil pressure switch going bad.I would try that first.

Sometimes a bad battery connection will cause gauges go hay wired. Turn your switch on but not over and see if your gauges do the same without the car running. try loosening the battery cables and reposition the post.

I had this same issue and luckily my F350 2006 was still under warranty. Basically there is a high pressure oil system that has a tendency to leak internally. You won't see any oil leak. When cold the oil has enough viscosity to keep the pressure sensor from not allowing the engine to start. When the engine is warm the system doesn't reach required pressure to allow the engine to start. In short it's a Ford dealer repair. Good luck.

that's good but it still doesn't rule out a leak in the high pressure oil system. When you turn on the key do the injectors buzz like normal? Usually 5-10 secs

It sounds like it has a high pressure oil problem. does the oil pressure gauge come up while cranking? does it start when cold and not when hot? any check engine light?