Power Train Related Problems of the 1998 Mercury Grand Marquis

Table 1 shows four common power train related problems of the 1998 Mercury Grand Marquis. The number one most common problem is related to the automatic transmission (five problems). The second most common problem is related to the differential unit (one problem).

Table 1. Power Train related problems of Mercury Grand Marquis


Recently reported Power Train problems of the 1998 Mercury Grand Marquis

The Automatic Transmission problem

: the contact stated that the vehicle shifted into reverse after it was put in to park. There was no accident involved. The contact believes this is a manufacturing defect and not something caused by wear and tear. This was the first occurrence and the vehicle has not been inspected by a dealer.   Read details...

The Differential Unit problem

Abnormal whining noise from differential at 50-65 mph.   Read details...

The Transmission Gear Slipping problem

Transmission slipped and shuttered on incline at 10 mph. Yh   Read details...


Power Train related problems in other Mercury Grand Marquis model year vehicles:



Fuel Economy of Grand Marquis Vehicles
Grand Marquis Service Bulletins
Grand Marquis Safety Recalls
Grand Marquis Defect Investigations