2004 Mercury Grand Marquis Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Mercury Grand Marquis
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2004 Mercury Grand Marquis ProblemsMalfunctioning 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).
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.
2004 Mercury Grand Marquis QuestionsI have a 2004 Mercury Grand Marquis. The dome light won't go off and the drivers side rear door won't open. These two things started at the same time. Does anyone know how to fix this? Thank you. (1 answer)
cel light on code p0108
Change the fuse and it works fine except the ABS and brake idiot lights are constantly on. When you turn engine off and turn the A/C back on it blows the fuse. Then the idiot lights go out, the defroster switch is out also. No codes show on computer..it comes up "no codes". Do I need a ...
2004 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.