1991 Mercury Grand Marquis Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1991 Mercury Grand Marquis

1991 Mercury Grand Marquis Problems

Malfunctioning Headlights

The car had 64600 miles on it and the headlights started going out while driving, which can be very dangerous. The problem is in the Light Control Module which is an expensive part (around $500 to $600 + labor).

Spring in Seat Belt Buckle May Fail

A spring in the seat belt buckle may wear or fail, causing the airbag light on the instrument panel to illuminate. Failed buckles will require replacement.

Throttle Position Sensors May Fail and Cause Engine Performance Problems

The throttle position sensor (TPS) may fail. Common symptoms of a defective TPS can be rough idle, hard starting, hesitation on acceleration, poor fuel economy, and stalling.

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1991 Mercury Grand Marquis Recalls

Recall 91V048000
THE PARK ROD ASSEMBLY CONTAINS A PARK CAM WITH INADEQUATE SURFACE HARDNESS, WHICH COULD LEAD TO PARK DISENGAGEMENT OR NO PARK ENGAGEMENT WHEN THE LEVER IS PLACED IN PARK.
Recall 90E043001
THREADED INFLATOR COMPONENTS MAY HAVE BEEN DAMAGED DURING ASSEMBLY WHICH MAY ALLOW COMPONENTS TO SEPARATE WHEN INFLATOR RECEIVES A SIGNAL TO DEPLOY THE AIR BAG.

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1991 Mercury Grand Marquis Reviews

ilove this car
A great Ride anywhere, Highway or across town. They dont make them like this anymore. A great family car with plenty of room.
my tranny has reverse but no forward gear does it need to be rebuilt or just an overhaul? Other than that i love it only has 34,500 miles.

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