One problem related to loud engine noise has been reported for the 2003 Nissan Sentra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Nissan Sentra based on all problems reported for the 2003 Sentra.
The contact owns a 2003 Nissan Sentra. The contact stated the vehicle was consuming an excessive amount of oil and there was an abnormal noise coming from the engine. In addition, the vehicle would drive sluggish and the contact would have to change the oil every 2,000 miles or when the engine would become excessively loud. The dealer advised the catalytic converter would need replacing. There was a technical service bulletin for the failure (item number pe02078) but no recalls. The failure mileage was 73,000 and the current mileage was 93,000.