1998 Mercury Grand Marquis Fuel system Problems
- Complaints
- 8about this part
- Share
- 6%of 143 total for the year
- Median mileage
- 74,900miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the fuel system of the 1998 Mercury Grand Marquis, 6% of the 143 complaints for this model year. Where a mileage was given, the median is 74,900 miles. 1 of these say a crash was involved, 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.
“Fuel fill limiting valve sensor is hanging into the fuel tank, causing a loud cluncking noise. Tsb for defect, no fix has been issued. Dealer and manufacturer have been notified, but will not admit whether or not this is a safety concern. Dealer cannot fix because they have not been issued a repair procedure from the manufacturer.”
NHTSA complaint #833102, filed 1999-01“Upon an early morning start consumer noticed fumes/odor within the passenger's compartment. Also, the problem occurred when the heater was being used. Consumer contacted the dealer, dealer was unable to determine the cause. .et.”
NHTSA complaint #857973, filed 2000-03“Was traveling down a ramp at 20-30 MPH when the vehicle cut off for no reason. Had no warning. Had no control of vehicle. Police officer noticed fuel injection switch in trunk of vehicle & punched it to restart vehicle.”
NHTSA complaint #833763, filed 1999-02“Fuel tank developed a crack, causing fuel to leak almost directly above the exhaust pipe . Dealer replaced fuel tank 3 times, defect is still occurring. Crack is always leaking in the same location.”
NHTSA complaint #834775, filed 1999-02“The consumer has been experiencing problems with fuel tank assembly. Vehicle makes a clunking sound due to piece that is broken in the fuel tank. The manufacturer has been contacted.”
NHTSA complaint #834369, filed 1999-02Related service bulletins
- 10026401May 15, 2008Ford/lincoln mercury: certain 1992-2001 model year crown victoria, grand marquis, and town car vehicles registered in the states of wisconsin and connecticut upgrade…
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2011 | 1 | 11% |
| 2010 | 1 | 4% |
| 2009 | 3 | 12% |
| 2008 | 4 | 5% |
| 2007 | 5 | 5% |
| 2006 | 13 | 9% |
| 2005 | 2 | 0% |
| 2004 | 6 | 2% |
| 2003 | 10 | 3% |
| 2002 | 4 | 5% |
| 2001 | 5 | 3% |
| 2000 | 8 | 5% |
| 1999 | 6 | 4% |
| 1998 | 8 | 6% |
| 1997 | 32 | 10% |
| 1996 | 21 | 9% |
| 1995 | 8 | 4% |
| 1994 | 6 | 4% |
| 1993 | 6 | 4% |
| 1992 | 20 | 8% |
| 1991 | 4 | 5% |
| 1990 | 2 | 4% |
| 1989 | 5 | 9% |
| 1988 | 5 | 7% |
| 1987 | 2 | 5% |
| 1985 | 2 | 10% |
| 1984 | 2 | 13% |
| 1983 | 1 | 14% |
Other parts of the 1998 Mercury Grand Marquis
26 complaintsSteering
17 complaintsExterior lighting
16 complaintsSuspension
16 complaintsElectrical system
15 complaintsBody and structure
10 complaintsVehicle speed control
9 complaintsTransmission and drivetrain
8 complaintsBrakes
7 complaintsTires
7 complaintsAir bags
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaints
← All problems reported for the 1998 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