One problem related to loud engine noise has been reported for the 2011 Dodge Nitro. The most recently reported issues are listed below.
The contact owns a 2011 Dodge Nitro. While attempting to start the vehicle, an abnormal sound was heard and the vehicle failed to start without warning. After two attempts, the vehicle started and made an abnormal sound. The local dealer and manufacturer were not contacted. The vehicle was not diagnosed or repaired. In addition, the contact stated there were various electrical issues in the past with the heater, defrost, brake lights, air conditioner, and radio. The failure mileage was approximately 62,000.