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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

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).

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.

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 Questions

body pleunm gasket,radiator, spark plugs and throttle position sensor and car wont start. it acts like it wants to start but doesent. what could be the problem?

no power fuse seems to be good i disconnected main wire to seat that come out of floor no power and also my air bag light wont quit flashing

Need to find out if motor is blown or cracked block or maybe just blown head gasket

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1991 Mercury Grand Marquis Recalls

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.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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