04 F350 DRW 6.0 249,000k: started to shutdown as if ignition is being switched off, however that is not the case. While sitting at stop idling, had been out running around 2-2.5 hours, stalled, no rough idle, no sputter, just off as if key was turned to shut down truck??? Started back up normally, 1/4 mile +/- down again, happened 3 more times over next 1.5 miles to house. Since then I have started truck up at house, will run 3-15 minutes and then down. Running and idling as normal, just cuts off?? No CEL. have Scan Gauge II hooked up no codes (?): IPR from 35 -25% from cold start / ICP 1250-785 from cold start : fuel pres. 55-65psi; FICM 47.5-48; bat. 13.5-14 volts while idling. History: original owner; 04.5 build; EGR cooler deleted @75k; Blue spring done @120k; FICM repaired @150K;all injectors and oil cooler replaced @220k; Amsoil bypass oil filter installed @75k; coolant filter installed @ 35K; turbo replaced with stock Garrett @ 240k; glow plugs and harness replaced @190k: dummy plugs updated @220K; turbo oil return updated with turbo @ 240k: ICP and EBP senors replaced w/ new pigtails @???: batterys 1.5 yrs in truck; oil just changed 2 weeks ago; coolant between min/max . Any possibility there is a circuit issue with the instrument cluster ? My 06 F250 was doing weird things and turned out that specific circuits go through cluster. At any rate at a complete loss for ideas, thanks in advance.