Anyone experiencing overheating problems? 2014 Jeep Cherokee Summit EcoDiesel has overheated twice in the past week. First time was while in some light moving traffic at about 25-30mph mostly uphill for about .5 mile with outside temp about 83 degrees. AC was on. No hauling other than wife and I. Quickly the coolant temp moved all the way up. Coolant level was full. Second event was today while in downtown city traffic for about 15-20 minutes. Outside temp was about 93 degrees. AC was turned off when temp gauge stated to rise, but before getting into red zone. Also, placed AT in neutral at stop lights. Coolant temp continued to rise to max, but cooled once traffic started moving about 30-35mph. Am on a trip so can't take the Jeep in to a dealer for about ten days. Comments?