Alternator/generator/regulator problems of the 2003 Mercury Grand Marquis

Two problems related to alternator/generator/regulator have 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.

1 Alternator/generator/regulator problem

Failure Date: 07/01/2010

The contact owns a 2003 Mercury Grand Marquis. The contact was driving approximately 30 mph when the vehicle stalled without warning. There was a strong burning odor inside of the vehicle. The contact inspected underneath the hood and flames excessively ignited from the engine compartment. There were two bystanders who extinguished the fire with bottles of water. There were no injuries. The fire department arrived and a report was filed with no personal injuries. The vehicle was towed to an authorized dealer and the technician stated that the failure was contributed to the alternator. The battery, alternator and electrical system were replaced. The failure mileage was 63,073.

2 Alternator/generator/regulator problem

Failure Date: 08/01/2005

2003 Grand Marquis developed problems with the alternator, the throttle sticking open and alignment problems. There was also a rattle noise coming from the engine and the digital readout on the dash was not reading properly.


Other Electrical System related problems of the 2003 Mercury Grand Marquis



Fuel Economy of Grand Marquis Vehicles
Grand Marquis Service Bulletins
Grand Marquis Safety Recalls
Grand Marquis Defect Investigations