I did a coolant flush on my 96 Dodge Ram Cummins. Replaced all the components(Upper and lower radiator hoses, water pump, coolant bypass hose) except the thermostat(only because I couldn’t get a bolt loose on the thermostat housing). Refilled the coolant with the recommended coolant and mixture. Test drove and it ran good. Next day cranked it, drove it a couple miles and parked it and now it won’t start. Is there anything that I could’ve done in this procedure that would cause it not to crank? Or is it some other issue that I need to diagnose?