Mercury Grand Marquis owners have reported 2 problems related to power train driveline (under the power train category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mercury Grand Marquis based on all problems reported for the Grand Marquis.
Underside of car covered with oil. Concrete driveway with many oil spots. Pinon gear seal was leaking. Replaced pinon seal.
See
all problems of the 2001 Mercury Grand Marquis
🔎.
Drive belt failed, causing accident.
See
all problems of the 1997 Mercury Grand Marquis
🔎.