2003 Mercury Grand Marquis Fuel system Problems
- Complaints
- 10about this part
- Share
- 3%of 362 total for the year
- Median mileage
- 47,112miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 10 complaints about the fuel system of the 2003 Mercury Grand Marquis, 3% of the 362 complaints for this model year. Where a mileage was given, the median is 47,112 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 wife was driving down a heavily traveled major thoroughfare in the san fernando valley, when her 2003 Mercury Grand Marquis stalled. The electric fuel pump had failed. As the vehicle died, she lost the power steering on this 4,000 pound vehicle. Unfortunately, she had her two elderly disabled parents with her. The vehicle only had 39, 527 miles on it. Luckily no one got hurt.”
NHTSA complaint #10224751, filed 2008-04, 39,527 miles“The contact owns a 2003 Mercury Grand Marquis. While driving approximately 40 MPH, there was a fuel odor emitting from the vents. The failure occurred on numerous occasions. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 94,000.”
NHTSA complaint #10690144, filed 2015-02, 94,000 miles“The contact owns a 2003 Mercury Grand Marquis. The contact stated that there was a very strong fuel odor in the vehicle, which was being emitted from the fuel storage tank. The dealer was contacted and stated that there were no recalls for the vehicle. The vehicle was neither diagnosed nor repaired. The failure mileage was 35,000 and the current mileage was 39.416.”
NHTSA complaint #10449440, filed 2012-02, 35,000 miles“Head lights suddenly went out while driving at night causing near accident, happening frequently. Also, the gas tank leaks when I put gas in car, making it smell badly and making it dangerous if someone drops a cigarette near it.”
NHTSA complaint #11612352, filed 2024-09“The contact stated after hearing there was a manufacturer's offer to replace the gasoline storage tank on police vehicles due to a risk of fire in the event of a rear end collision, the vehicle was taken to a dealer. Although the vehicle displayed no prior problems or had any existing failures, the contact instructed the service department to replace the fuel tank storage assembly. The consumer wanted to know why he had to pay for service when the police vehicle were being repaired for free. Updated 02/27/06. Updated 4/6/2006 - the gas tank was not replaced. …”
NHTSA complaint #10149116, filed 2006-01, 54,698 milesFuel 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 2003 Mercury Grand Marquis
207 complaintsElectrical system
51 complaintsSteering
28 complaintsSuspension
28 complaintsVehicle speed control
27 complaintsEngine cooling
13 complaintsTransmission and drivetrain
12 complaintsAir bags
11 complaintsVisibility (wipers, defrost, mirrors)
10 complaintsWheels
10 complaintsBody and structure
9 complaintsBrakes
7 complaints
← All problems reported for the 2003 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