One problem related to transmission noise has been reported for the 2003 Mercury Grand Marquis. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Mercury Grand Marquis based on all problems reported for the 2003 Grand Marquis.
The contact owns a 2003 Mercury Grand Marquis GS. The contact was driving 35 mph when an abnormal noise was heard from under the vehicle. The vehicle was taken to a local repair shop where the mechanic confirmed that the transmission needed to be replaced. The manufacturer was made aware of the failure and the vehicle was repaired. The failure mileage was 52,000 and the current mileage was 54,000.