2.7 won't crank but no start.

I have had this issue for a while. It will start, drive, shut off and not restart till when the hell it wants to. decent replaced pcm and starter. Battery and cables appear fine. It cranks just fine currently stuck on highway because it died and wont start. 99 concorde lx. 2.7 50,000 on motor 175 on body. Fairly new is alternator plugs wires fuel pump power steering pump and pulley serpentine belt. any advice or tips to get it going again pretty quick would be much appreciated like I said I'm stuck on the side of the road at the moment