1998 Mercury Marquis Vehicle speed control Problems
- Complaints
- 2about this part
- Share
- 7%of 29 total for the year
- Median mileage
- 76,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the vehicle speed control of the 1998 Mercury Marquis, 7% of the 29 complaints for this model year. Where a mileage was given, the median is 76,000 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.
“The contact owns a 1998 Mercury Marquis. The contact stated that while driving at approximately 60 MPH, the cruise control failed. The failure occurred on several occasions. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 76,000.”
NHTSA complaint #10643847, filed 2014-10, 76,000 miles“After driving about 500 miles stopped and started vehicle, motor accelerated to almost full speed. Dealer contacted and found plastic shipping cover in throttle plate, which was stuck in to keep throttle open. Repair work done.”
NHTSA complaint #844817, filed 1999-08Vehicle speed control: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2003 | 5 | 15% |
| 2002 | 1 | 9% |
| 2001 | 3 | 12% |
| 2000 | 2 | 9% |
| 1999 | 4 | 17% |
| 1998 | 2 | 7% |
| 1997 | 4 | 8% |
| 1996 | 2 | 6% |
| 1995 | 3 | 15% |
| 1994 | 8 | 27% |
| 1993 | 4 | 17% |
| 1992 | 5 | 21% |
| 1991 | 2 | 22% |
| 1990 | 1 | 17% |
| 1989 | 1 | 10% |
| 1988 | 1 | 11% |
| 1985 | 1 | 20% |
Other parts of the 1998 Mercury Marquis
4 complaintsSteering
4 complaintsSuspension
4 complaintsBrakes
3 complaintsExterior lighting
3 complaintsTires
3 complaintsTransmission and drivetrain
3 complaintsBody and structure
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 Nov 1, 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