Most common 2000 Mercury Grand Marquis problems
Share of the 162 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Mercury Grand Marquis complaints by model year
Best Grand Marquis years: 2011, 2010, 2009. Years to avoid: 2005, 1997, 1996, 2003. Compare all years →
2000 Mercury Grand Marquis recalls (6)
Equipment › Mechanical › Integrated jack/leveler/stabilizer
Vehicle description: passenger vehicles. These vehicles have jacking instructions which, if followed, could cause the vehicle operator to place the jack on a frame weld when attempting to raise a rear wheel.
Remedy: Owners will be provided with a revised jack instruction and stowage card and jack warning label, as well as a supplement to the owner guide.
Seat belts › Front › Anchorage
Vehicle description: passenger vehicles using aftermarket driver's seat belt assemblies that were sold by Ford parts departments from January 1, through June 13, 2000. These seat belt assemblies fail to comply with the requirements of FMVSS no.
Remedy: Dealers will inspect these vehicles and replace the service seat belt assemblies that were installed in these vehicles from January 1 through June 13, 2000.
Seat belts › Front › Anchorage
Vehicle description: passenger vehicles using aftermarket front passenger side seat belt assemblies that were sold by Ford parts departments from January 1, through June 13, 2000. These seat belt assemblies fail to comply with the requirements of FMVSS no.
Remedy: Dealers will inspect these vehicles and replace the service seat belt assemblies that were installed in these vehicles from January 1 through June 13, 2000.
Visibility › Windshield wiper/washer
Vehicle description: a windshield wiper control module May not be capable of carrying the current required during high load conditions on the wipers (I.e., ice, snow, or other debris).
Remedy: Dealers will inspect the wiper control modules and replace if necessary.
Seat belts › Front › Retractor
Vehicle description: passenger vehicles. These vehicles May have been built with the left rear seat belt retractor attaching bolts incorrectly tightened.
Remedy: Dealers will tighten the retractor mounting bolts to the specified torque.
Air bags › Frontal
Vehicle description: passenger vehicles. These vehicles May have been built with lower than the intended level of torque on the bolts that attach the air bag electronic crash sensor module to the vehicle.
Remedy: Dealers will tighten the air bag electronic crash sensor attaching bolts.
NHTSA defect investigations
Federal safety investigators have looked into 3 possible defects involving the 2000 Mercury Grand Marquis:
Post rear end collision fires
There is no summary currently available
Spark plug ejection from cylinder head
On September 6, 2005, odi received a petition requesting that the agency investigate allegations of engine spark plug ejection in certain model year 1997 through 2004 Ford vehicles with triton v-8 and v-10 engines.odi received a total of 474 non-duplicative complaints on the subject vehicles where the complainant, or the dealer repairing the vehicle, reported that a spark plug detached from the cylinder and/or…
Fuel-fed fires
The fars data shows that the risk of fire from impact in all directions in the subject vehicles is the same as all other sedans.the subject vehicles are not over represented with respect to the risk of fire in real-world high-energy crashes.a further discussion of issues related to post crash fires in the subject vehicles is set out in the closing report for sq 01-014 and that report is in the docket for this…
What 2000 Mercury Grand Marquis owners say
Engine & cooling all 25 →
I believe this issue effects millions of Ford and Mercury vehicles, many of which are taxi, government, and police cars. Apparently, the computer (PCM) that controls the engine can shut the engine down while the vehicle is driving when certain sensors fail (at least 2 known sensors per my research). I found this out at 65 MPH, 2 hours from home. I was told by the dealer that there are no new pcms made for my 2000 car, and that I had to rely on a rebuilt after market PCM. The aftermarket seller related that these computers last approximately 10 years. Even if I replace this part, I believe this effectively makes my (and any such) car a risk to drive, as most rebuilt auto parts are created by simply replacing any failed components out of the many components in the assembly of the part, and leaving others still old and worn. …
A spark was blown out of the cylinder head. The problem occurred 3 times (2010, 2014, 2014), each time a different cylinder. One of these times, it occurred to my wife 140 km away from home. I had to guess that it was a blown spark plug and instructed her to drive the car to toronto in this condition. Concern: aside from the costly repair, I am afraid to use the car on a long trip for fear that this will happen at a place where a repair is not available. I suspect that the Ford company has modified the engine along the way, considering the fact that on a previous model I had owned for a long time (1993 Grand Marquis), the problem had never occurred.
Lights all 21 →
Tl* the contact owns a 2000 Mercury Grand Marquis. While driving, the headlights and tail lights failed to illuminate. The contact coasted the vehicle to the side of the road and waited a few minutes until the lights illuminated again. The vehicle was taken to an independent mechanic who diagnosed that the lighting control module failed. The vehicle was not repaired. The following day, the failure recurred. The vehicle was not taken to a dealer. The manufacturer was made aware of the failure and informed the contact that the vehicle was included in an unknown recall. The failure mileage was approximately 240,000.
Tl* the contact owns a 2000 Mercury Grand Marquis. While stationary, the vehicle would not start when prompted. Upon starting the vehicle, a clicking noise occurred and the vehicle failed to start. The vehicle was towed to an independent mechanic where it was diagnosed that the headlamp module was faulty and drained the battery. The dealer was not contacted. The manufacturer was made aware of the issue and stated that there was no recall and referred the contact to NHTSA. The failure mileage was approximately 124,000. Updated 11/07/17 updated 11/13/2017
Steering
A bolt in the shifting linkage loosens over time on many Ford models. Our bolt apparently loosened & causes shifter to be in a great other than what is indicated on the dash. Our vehicle indicated it was in the ' park' position, but was not. The vehicle later rolled down the hill & caused nearly $1200 of damage to the passenger side. Ford knows of this problem.
While driving down ga highway 16 from dublin, ga to warner robins, ga the car started swaying and become very hard to controll. Nearly missed going under a semi.extremely scarey. Had to pull off road forcibly. Turn vehicle off waited for a while then proceeded home very catiously.
2000 Mercury Grand Marquis engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 4.6L 8-cyl | 4-speed automatic | RWD | 16 / 23 / 18 |
EPA ratings. Class: Large car.
Frequently asked questions
Is the 2000 Mercury Grand Marquis a good car?
Based on 162 owner complaints filed with NHTSA, the 2000 Grand Marquis rates average: about as many complaints as a typical year of the Grand Marquis at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2000 Mercury Grand Marquis?
The engine & cooling — 25 complaints, 15% of all complaints for this model year, most often about engine. Next are the lights (21) and steering (18).
How many recalls does the 2000 Mercury Grand Marquis have?
There are 6 recalls for the 2000 Mercury Grand Marquis, the most recent from July 18, 2000 (integrated jack/leveler/stabilizer). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Mercury Grand Marquis?
The best years by complaints, compared at the same age, are 2011, 2010 and 2009. Years to avoid or approach with caution: 2005, 1997, 1996 and 2003. See the full Mercury Grand Marquis years comparison.
At what mileage do 2000 Mercury Grand Marquis problems happen?
The median mileage reported in complaints is about 74,000 miles; 30% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.