2000 Mercury Grand Marquis Engine cooling Problems
- Complaints
- 17about this part
- Share
- 10%of 162 total for the year
- Median mileage
- 87,000miles
- Trend
- StableComplaints filed in the last 3 full calendar years are within 25% of the 3 years before.
NHTSA recorded 17 complaints about the engine cooling of the 2000 Mercury Grand Marquis, 10% of the 162 complaints for this model year. Where a mileage was given, the median is 87,000 miles. 2 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Paint is peeling, like there was never a primer put on the vehicle. Also the vehicle surges quite often. I have replaced the manifold spark plugs several times also coils. Is there a recall on mercurys paint that I can get some help with?”
NHTSA complaint #10475545, filed 2012-09, 78,000 miles“Car started running hot all of a sudden..found out the intake manifold was cracked and the coolant was leaking on spark plugs and fuel injectors. Causing the car to misfire and slow to pick up speed. Tried to get fixed but was told the exp. Date was in 07.so I have to pay out of pocket..I feel a recall shouldn't have an expiration date cause it tells you that one of these days the part on the car is going to need to be fixed. I feel ford should live up to their word and fix the problem no cost to customer...”
NHTSA complaint #10250679, filed 2008-12, 87,000 miles“I bought this car to replace my chevrolet caprice(great car) on 719 07 this car has major issues that ford motor company refuses to address. July 2011 fuel tank filler neck rusted causing a fire hazard dec20 11 rear axle control arm cracked causing car to sway feb 2012 plastic intake cracked causing coolant to spray all over engine. Ford issued a recall for this I called the local ford dealer about this they told me it expired so im stuck to repair the car myself front end parts not serviceable and wear out (no grease fitting to lube) this has been the worst car I have ever owned.”
NHTSA complaint #10455939, filed 2012-04, 150,000 miles“The cars started missing and running rough even after having a complete tune-up and after about week later it started all over and was taken into the Mercury dealership that found that the intake manifold was cracked and had to be replaced at our expense, which we just received a letter in the mail regarding a class-action lawsuit against ford for the same problem. I do believe that this needs to be followed up and ford needs to refund all expenses due to the customers. Please check into this situation, we also have a friend who has had the same problem and had to have his replaced. Thank you”
NHTSA complaint #10133842, filed 2005-08, 52,584 miles“2000 Mercury Grand Marquis engine shut down causing consumer to lose power brakes and steering. This was caused by a short in spark plug. The short occurred in the spark plug on the #4 cylinder. This confused the power control module with signals it was receiving from the engine and tried to compensate which affected other systems and a sort of chain reaction occurred.”
NHTSA complaint #10141074, filed 2005-10, 57,000 milesRelated service bulletins
- 10023943Oct 1, 2007Some 1997-2008 vehicles equipped with a 4.6l 2v, 5.4l 2v, or 6.8l 2v engine--spark plug thread repair procedure--not covered under new vehicle limited warranty. *nj this includes…
- 10018959Dec 14, 2005Extended coverage program 05n04 - extended coverage for composite intake manifold. This program is being provided as a settlement to a class action lawsuit. The terms of the…
- 10018745Nov 14, 2005Wds cop kit diagnostic tip - coil on plug (cop) ignition systems - engine misfire or rough running.
- 10011162Aug 23, 2004Engine misfire or running - coil on plug (cop) ignition systems - wds cop kit diagnostic tips. To include various 2005 models. * ar this article 04161 supersedes tsb 03-14-04.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2010 | 1 | 4% |
| 2008 | 5 | 6% |
| 2007 | 3 | 3% |
| 2006 | 2 | 1% |
| 2005 | 9 | 2% |
| 2004 | 10 | 3% |
| 2003 | 13 | 4% |
| 2002 | 10 | 13% |
| 2001 | 20 | 13% |
| 2000 | 17 | 10% |
| 1999 | 26 | 16% |
| 1998 | 26 | 18% |
| 1997 | 124 | 39% |
| 1996 | 85 | 36% |
| 1995 | 8 | 4% |
| 1994 | 15 | 10% |
| 1993 | 7 | 5% |
| 1992 | 19 | 7% |
| 1991 | 10 | 12% |
| 1990 | 3 | 5% |
| 1989 | 6 | 10% |
| 1988 | 7 | 10% |
| 1987 | 5 | 12% |
| 1986 | 4 | 19% |
| 1985 | 3 | 14% |
| 1984 | 5 | 33% |
Other parts of the 2000 Mercury Grand Marquis
21 complaintsBrakes
18 complaintsSteering
18 complaintsElectrical system
17 complaintsVisibility (wipers, defrost, mirrors)
16 complaintsSuspension
15 complaintsVehicle speed control
13 complaintsSeat belts
9 complaintsEngine
8 complaintsFuel system
8 complaintsTires
7 complaintsAir bags
6 complaints
← All problems reported for the 2000 Mercury Grand Marquis
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology