ihave a 2001 ram 1500 5.9 with 316648 happy miles. after starting and truck is warmed up,if you shut it off it will not restart for 3 minutes to 4 hours,i have tryed 3 pcm's and relays,new,when it is scaned it's coming up as a bad pcm. apparantly this is not the problem. also sometimes if it is left idling for a few minutes it will start. HELP PLEASE i would realy like to put another 300000 on .