2002 Mercury Grand Marquis Engine cooling Problems
- Complaints
- 10about this part
- Share
- 13%of 78 total for the year
- Median mileage
- 73,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 10 complaints about the engine cooling of the 2002 Mercury Grand Marquis, 13% of the 78 complaints for this model year. Where a mileage was given, the median is 73,000 miles. 1 of these say a crash was involved and 1 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was leaving a shopping center parking lot when I started the car up and everything was okay. I shifted the car into reverse and immediately the engine started to race extremely fast causing the car to move backwards with my foot still on the brake. I tried to turn off the ignition, but I was too close to the car behind me and I hit it. I was moving about 10 to 20 miles per hour with my foot on the brake which failed to stop the vehicle. After the accident, the car ran okay. I took the car to the south hills lincoln dealership where it had been purchased. …”
NHTSA complaint #10400456, filed 2011-05, 27,100 miles“The contact owns a 2002 Mercury Grand Marquis. While driving 35 MPH the vehicle shut off. The check engine, battery, and track warning lights illuminated. The contact stated that she had to wait an hour to restart the vehicle. As of august 8, 2007, the dealer has not repaired the vehicle. The current and failure mileages were 73,000.”
NHTSA complaint #10198859, filed 2007-08, 73,000 miles“The gears tended to pop, making the vehicle jump forward, as well the engine leaking oil, and increasing the chance of the vehicle to overheat. Taken to dealer for repairs 4 times, but the problem recurred. Consumer was informed that a new engine was needed, but it will be at consumer's expense.”
NHTSA complaint #10107196, filed 2005-01“The cars exhibits problem described in bulletin 15415 sb630431. Dealer claimed it was exhaust vibration. They realigned the exhaust. This did nothing to correct. The dealer claims it must be the way I drive since all the others on the lot are just like.”
NHTSA complaint #763377, filed 2002-06“The contact owns a 2002 Mercury Grand Marquis. The contact stated that there was a premature failure in which there was an internal crack on the intake manifold, which caused water intrusion that affected other components. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was not available.”
NHTSA complaint #10946464, filed 2017-01Related 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…
- 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 2002 Mercury Grand Marquis
17 complaintsSuspension
11 complaintsElectrical system
10 complaintsSteering
9 complaintsSeat belts
7 complaintsTires
7 complaintsBrakes
6 complaintsExterior lighting
6 complaintsFuel system
4 complaintsAir bags
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsEngine
2 complaints
← All problems reported for the 2002 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