2004 Dodge Ram 3500 Truck "cummins won 39 turn" Questions

Won't start easily since it got cold (32degrees). It's fine once it starts Cummins Engines, Smokes as it is turning over. Its cold start issues:---- Go through the list of help links mentioned

...won't start. it turns over fine is there fuel safety shut off or some other kind of crash sensor that could be killing the spark or fuel? I don't know anything about these cars, I usually ...

...cummins 450/500. keeps losing power, check engine ECU comes on knowbody seems to know what it is. they just keep replacing sensors. I have a 2007 Volvo 670. The check vehicle ecu comes on. The fault ...