One problem related to loud engine noise has been reported for the 2005 Cadillac CTS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Cadillac CTS based on all problems reported for the 2005 CTS.
Tl the contact owns a 2005 Cadillac Cts. The contact stated while driving 35 mph, the vehicle began to make an abnormal noise and the vehicle independently decelerated. The contact stated no warning light was illuminated. The vehicle was taken to an independent mechanic who was unable to duplicate the failure. The vehicle was not diagnosed nor repaired. A dealer was not contacted. The manufacturer had been informed of the failure. The failure mileage was unknown.