I can use some help. My Jeep has recently stopped while driving. This has happened various times, and appears to restart after some minutes. I have taken it to 2 mechanics, and none has found anything wrong. They say they can not duplicate the failure. The last one told me the camshaft position sensor could be the cause, but he could not get the engine to stop after many hours with the engine ON. Anyone having the same issue or have a possible solution? I don't feel safe driving it, since it could happen again any time.