Two problems related to service brakes have been reported for the 1998 Mercury Grand Marquis. The most recently reported issues are listed below.
1998 Mercury Grand Marquis. Consumer states faulty rear brake pad replacement the consumer stated when his wife applied the brakes firmly, but not hard, the vehicle lunged forward striking a sign and damaging the right front of the vehicle. The consumer later discovered the brakes were spongy and failed to effectively stop the vehicle. The dealer informed the consumer the spongy brakes were normal. The consumer went to another dealer and they restored the brakes back to normal operation.
Problems with upper and lower ball joints and tie rods. The parts were replaced, some of them twice. Ford put ungreased parts on. Eventually they dried out again and started squeaking. If not replaced they would possibly break which could cause the driver to lose control, possibly causing injury or death. The front brakes were resurfaced.