Does anyone know what might be wrong? While driving it was as if the car was loosing power. If you tried to accelerate you would barely go. Then right in the middle of traffic trying to go up an on ramp to the highway it just died and wouldn't turn on. We had to sit their for over an hour before it finally started again. It seems to be running fine at the moment and the Chrysler dealer said they couldn't find a problem with it. Has anyone heard of this happening before?