6 people reported this problem
Steering Gear May Fail on Mercury Grand Marquis
2001 Mercury Grand Marquis 15,000 mi, Visitor
None found but car wanders on highway at speeds above 50 mph . IN wind it is almost undriveable . 2001 Mercury Grand Marquis . Have read many with same complaints suggest rear stabilizer and check idle arm bushing should be 50 lbs of torque or less and not binding .
Same problem just changed pitman arm and gearbox still floats. Just found broken stabilizer end link broke I think it's the problem