01 hard starting all time

[Cummins0154]

ok guys been awhile i got rid of my old 01 and bought a different one ive had it for a few days an all of a sudden it started hard starting the trucks bone stock with 140k on it sometimes it fires right up im thinking lift pump well hoping dont want it to b the vp but any input would be greatly appreciated

 

[Diehard Ram]

Check your fuel pressure. That will tell you alot.