Three problems related to hydraulic power assist steering system have been reported for the 1998 Mercury Grand Marquis. The most recently reported issues are listed below.
While traveling could not keep vehicle centered to road while steering. Dealer has been contacted. No positive feedback while going straight, vehicle tends to wander, no "on-center" feeling. .
Power steering fails intermittently.
Vehicle loses power steering when driving at any speed, automatically steers easy and 25mph and lower. Dealer contacted and worked on vehicle four times, and the problem has not changed and still exists. Provide further information.
| Steering Tie Rod Assembly problems | |
| Hydraulic Power Assist Steering System problems | |
| Steering problems | |
| Steering Gear Box Shaft Pitman problems | |
| Steering Wheel problems | |
| Steering Rod Relay Connection problems | |
| Steering Linkages problems | |
| Power Steering Pump problems |