hi everyone!
i have been having more trouble than normal to get it started on cold and not so cold mornings, if i plug it in it will start fine. i was on the street and suddenly it lost power as if it was not getting fuel, then it would get normal for a little bit or in the park position but when set on drive it would not have power. the next morning started just fine for a couple of minutes then turned off,
the truck has new fuel pump, new fuel filter, new gpr, i checked fuses, it will crank as much as i want to but it does not start, any help would be appreciated!!
thank you!!

 

Well po381 is an open circuit fault in the glow plugs which is probably why the no start/ hard start showed up. As far as the no power goes I would need more info i.e. fuel pressure loss color of smoke if any and whether of not it falls flat on it's face or if it is just more sluggish then normal. Also ambient temp at the time of the problem not exact but you know real hot real cold

 

Just for kicks check the blue hoses on your air to air make sure you have no leaks or tears there.