One problem related to engine noise has been reported for the 2011 Jeep Cherokee. The most recently reported issues are listed below.
Car engine unexpectedly stopped while driving, losing all power and brakes. Car had sat in below freezing temperatures for a week. There were no flashing warning lights nor any buzzing sounds of overheating as stated in the car manual would indicate immediate action was needed. Parking brake was used to stop and engine was damaged beyond repair.