1998 Mercury Marquis Engine cooling Problems
- Complaints
- 4about this part
- Share
- 14%of 29 total for the year
- Median mileage
- 75,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine cooling of the 1998 Mercury Marquis, 14% of the 29 complaints for this model year. Where a mileage was given, the median is 75,000 miles.
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.
“My trunk on my 1998 Mercury mystique leaks water when it rains, passenger window switch does not work,my car has jumped timing twice in a month and was stuck on the interstate the second time and had to call a tow truck, had to replace the water pump and buy the timing kit twice. Not counting on all the recalls on this car when I bought it in 1998 new. The car is in my husbands name... Which is marvin minor. I really do like my car, but it has been a disappointment to me. 8nlm”
NHTSA complaint #10014437, filed 2003-04, 75,000 miles“The intake manifold on my grand Marquis cracked an caused my car to run hot an I had to replace it. I have 1998 merqury grand Marquis I replaced it on the 9-14-05.”
NHTSA complaint #10137901, filed 2005-09“The contact owns a 1998 Mercury Marquis. The contact stated that while driving at 40 MPH, there was smoke coming from the hood of the vehicle. The vehicle was taken to an independent mechanic, who diagnosed that the manifold and the thermostat holder needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The VIN was not available. The approximate failure mileage was 130,000. Updated 3/24/15 the consumer stated he pulled the vehicle to the curb, inspected the engine and noticed smoke coming from a broken part, releasing anti-freeze. …”
NHTSA complaint #10679678, filed 2015-01, 130,000 miles“The contact stated while driving 45 MPH steam was noticed coming from under the hood. The vehicle was taken to the dealer where it was determined to have a crack in the intake manifold.”
NHTSA complaint #10156305, filed 2006-04, 56,000 milesEngine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2003 | 2 | 6% |
| 2002 | 2 | 18% |
| 2001 | 3 | 12% |
| 2000 | 3 | 13% |
| 1999 | 3 | 13% |
| 1998 | 4 | 14% |
| 1997 | 21 | 40% |
| 1996 | 11 | 35% |
| 1995 | 1 | 5% |
| 1994 | 4 | 13% |
| 1992 | 4 | 17% |
| 1990 | 1 | 17% |
| 1988 | 1 | 11% |
| 1985 | 1 | 20% |
| 1984 | 1 | 10% |
Other parts of the 1998 Mercury Marquis
4 complaintsSuspension
4 complaintsBrakes
3 complaintsExterior lighting
3 complaintsTires
3 complaintsTransmission and drivetrain
3 complaintsBody and structure
2 complaintsVehicle speed control
2 complaintsElectrical system
1 complaintsEngine
1 complaintsEquipment
1 complaintsFuel system
1 complaints
← All problems reported for the 1998 Mercury Marquis
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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