1989 Mercury Grand Marquis Engine cooling Problems
- Complaints
- 6about this part
- Share
- 10%of 58 total for the year
- Median mileage
- 120,514miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the engine cooling of the 1989 Mercury Grand Marquis, 10% of the 58 complaints for this model year. Where a mileage was given, the median is 120,514 miles. 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.
“The vehicle frame had approximately three feet of rust and corrosion. The rust was also noticed by the bracket that holds the transmission support cross member. The engine oil pan rusted out which caused an oil leak. Also two of the tires had acquired bulges.”
NHTSA complaint #10006294, filed 2003-02, 120,514 miles“Oil leak. Cannot find where it is coming from. Car smokes and smells from oil. Mechanic is absolutely mystified. He cannot locate where motor oil leak is coming from. Undercarriage is wet with oil.”
NHTSA complaint #717377, filed 2000-01Engine 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 1989 Mercury Grand Marquis
16 complaintsVehicle speed control
14 complaintsBrakes
6 complaintsTransmission and drivetrain
6 complaintsFuel system
5 complaintsTires
3 complaintsBody and structure
2 complaintsLatches, locks and linkages
1 complaintsSeat belts
1 complaintsSteering
1 complaints
← All problems reported for the 1989 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