2000 Mercury Grand Marquis Repair and Maintenance Costs
A guide to repairs, service, and maintenance costs for your 2000 Mercury Grand Marquis
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2000 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.
2000 Mercury Grand Marquis Questionswhy does thermostat setting not work? stuck on either hot or cold. (2 answers)
Heater was set for hot. I could not scale it down. Switched to achieve and it still blew out hot air. I accidentally left ac on when I turned the car off. When I started it next, all I got was cold.
When driving hit a bump in road water light pops on and pops back off
Can feel the heat but it wont push out the vents unless im driving... when i stop or idle the heat stop flowing out the vents