Mercury Grand Marquis Repair and Maintenance

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

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).

Intake Manifold May Crack Leaking Coolant Behind the Alternator

The composite (plastic) intake manifold may crack near the thermostat housing and cause a coolant leak. Ford released an updated manifold that was reinforced to prevent a recurrence. No recall was issued for this problem but Ford did extend the warranty to seven years on some models from the date of purchase.

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.

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Mercury Grand Marquis Recalls

Headlights Fail To Operate

The lighting control module may fail, resulting in the loss of headlight operation. Dealers will replace the lighting control module free of charge to resolve the concern.

Potential Loss of Steering

Certain vehicles are being recalled because the upper intermediate steering shaft could separate resulting in loss of steering control. This recall includes models previously recalled under campaign #13V-385, these vehicles may have been incorrectly repaired. Dealers will inspect and replace the upper immediate shaft if necessary. If the steering column lower bearing has separated, a retainer clip will be installed.

Potential Loss of Steering

The intermediate shafts connect the steering column to the steering gear. Vehicles in areas where salt is used to de-ice the roads are being recalled because severe corrosion can damage the lower intermediate steering shaft. This can cause the upper intermediate shaft to collapse and separate at the lower steering column bearing. Separation will result in complete loss of steering ability. Dealers will replace the lower intermediate steering shaft and inspect the upper intermediate shaft and steering column lower bearing for damage, they will be repaired or replaced as necessary. If the steering column lower bearing has separated, a retainer clip will be installed.

Additionally, Vehicle owners located where salt is not used who have concerns regarding their steering will have a one-time option to have their vehicles inspected and, if necessary, repaired.

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Mercury Grand Marquis Reviews

My 2003 Mercury Grand Marquis headlights only turn on when they want to.I think it should be on recall cause in my opinion this is a safety hazard.I can be going down the road at night and they just cut off.This is dangerous.However after spending about $500.00 I have finally found the problem it was the light module.I feel that Ford/Mercury should put this on recall and pay me my money I spent...
Absolutly the best car I have ever owned. I bought it used with 22,000 miles and have owned it for 11 years. Highway milage usually exceeds 27 mpg with cruise control. Local milage averages 17 mpg. This is the LS model and has automatic temperature control that still works perfectly - and the AC system has never been recharged. I am about to decide on whether to buy another car, or just sp...
96 Mercury -locked in 'P' parking, when i want to change gears from park into drive i need to bump the brake and wiggle the steering wheel for the car to go into drive. this is a new problem... help if you know how to fix this problem thanks

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