2000 diesel sometimes will not start. Will turn over but not start. There is no pattern to it. Go in the store , come out will not start. Go back in store and wait 10 min. come out and starts. only does it about once a month. Called the Dodge dealer , they said they could not find it unless they could make it repeat. Been going on about 6 months, not getting anymore frequent. I have 3 Dodge diesels, dating back to 1995. Have checked the normal stuff. Any help would be appreciated, it is such an adventure to drive it.