Mercury Grand Marquis Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Mercury Grand Marquis
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Mercury Grand Marquis ProblemsTransmission Failure Common Due to Front Pump Failure
Transmission problems are common in this model, often as a result of a failed front pump. The pump loses its ability to create hydraulic pressure, which an automatic transmission needs to function. A sign of front pump failure can be a whine type noise.
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.
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.
Mercury Grand Marquis QuestionsBlower not working. How do I figure out what is wrong with it? (2 answers)
It's a manual panel. I have a blower switch that may be the problem I was told. Is the blower switch behind the control panel? I need to get his working because I have to bring clients in my car for work. Any help would be appreciated.
TROUBLE SPRADICALLY STARTING CAR, 3 NEW STARTERS PUT IN COST 975.OO NO HELP, 30 AMP FUSE BLOWS EVERY OTHER DAY EVEN WITHOUT DRIVING MANY MILES REMOTE STARTER WAS REMOVED FROM VEHICLE AS TOLD THAST WAS PART OF THE PROBLEM THEN TOLD STARTER NEED , THEY INSTALLED 3 NOTHING HAS HELPED. OLDER GENTLEME...
I'm check battery leads one of the positive leads is corroding
Mercury Grand Marquis RecallsHeadlights 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.
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.