One problem related to gasoline engine has been reported for the 2001 Mercury Grand Marquis. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Mercury Grand Marquis based on all problems reported for the 2001 Grand Marquis.
While driving 45 mph, vehicle suddenly gave a jerk and engine died. Consumer was able to restart vehicle. Consumer felt if this happened on highway someone could have been killed. The vehicle has jerked several more times since then. The dealer conducted numerous tests but could not locate the cause. The engine has not died since the first incident.