2008 Mercury Grand Marquis Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2008 Mercury Grand Marquis
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2008 Mercury Grand Marquis ProblemsIntake 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.
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 engine may overheat at idle when the AC is on. A new, upgraded fan motor and resistor may be required to correct this concern.
2008 Mercury Grand Marquis QuestionsAC or vent does not blow out cold air. AC control works fine just no cold air. (1 answer)
When I turn the air control switch to any position defrost, feet, vent ac they all work except just blows out hot air. even with the cold hot switch on cold.
Had this problem with a previous grand marquis and it quit closing. Think it is the actuator or solenoid, but not sure which is actually in this trunk. Went to the Ford place and they said I had to replace the whole trunk assembly. Does that include both?
2008 Mercury Grand Marquis RecallsPotential 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.
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.
Improper heat treatment of the wheel bearing and hub assembly may allow the hub to fracture. If the hub fractures, the wheel will only be retained by the brake caliper assembly. If the wheel falls off while driving, a crash could result. Dealers will inspect and replace both front wheel bearing and hub assemblies free of charge. The recall began June 22, 2007. The Ford recall number is 07S54.