Started car this morning started fine. Drove car about 8 miles on highway, all of a sudden took notice the RPM's dropped from 2 to zero car was slowing up pulled over to side car stopped dead. Turned key nothing. Tried a few times nothing. about one hour passed when tow truck came. Tried one more time it cranked but would not start up. Got car to garage. Was checked about 2 hours later by mechanic and it started right up. He said has no idea what it may be. He checked charging system and it was fine. Help, need some ideas on what may be wrong. Thanks for any help.

 

When its not starting you need to check for spark and fuel to help narrow it down.