2006 Mercury Grand Marquis Fuel system Problems
- Complaints
- 13about this part
- Share
- 9%of 143 total for the year
- Median mileage
- 96,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 13 complaints about the fuel system of the 2006 Mercury Grand Marquis, 9% of the 143 complaints for this model year. Where a mileage was given, the median is 96,000 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.
“On 6/1/14 I was driving south on sr44 in ohio near lake punderson and following a farmer driving a farm tractor.when I got a chance to pass him I accelerated to kick in the passing gear and when I cleared him and left off the throttle it did not respond instead it continued at a high speed for a few seconds before letting off.I thought maybe the throttle got caught on my car mat. I very rarely push the throttle to the floor. …”
NHTSA complaint #10627356, filed 2014-08, 62,800 miles“While entering onto the woodrow wilson bridge from I-295s on 2/1/2018, I pulled into the center lane and backed off the gas pedal, but the car continued to accelerate on its own. Luckily the traffic was light, after hitting the brake and the off button for the cruise control, to no effect, I was able to pull into the right lane and turn the car off. While still in motion, I turned the key back on and everything was normal again. Since it wasn't a cruise control issue, it would appear it is similar to the toyota problem with the drive by wire issue.”
NHTSA complaint #11066700, filed 2018-02, 168,000 miles“My husband noticed (the week of august 11th 2014 that our gas tank was hanging loose, only held up by the filler hose. The straps had rusted out. He had just filled up the tank approx. A day or two before he noticed the gas tank hanging down.we had to have a tow truck take it to the mechanic for fear of sparks causing an explosion. Many older people have this car and it would be horrible if they didn't notice something like this and drove it on expressway with the tank hanging. We also reported to ford mtr. Co. …”
NHTSA complaint #10626870, filed 2014-08, 83,000 miles“My 2006 Grand Marquis original plastic intake manifold developed a crack at the drivers side rear intake bolt area causing it to leak antifreeze. This caused me to have to spend $240.00 to buy a new dorman replacement and install it. Ford continues to use these cheap plastic manifolds despite losing a class action lawsuit against them for this problem. There will be more of these plastic manifold failing in the near future to be sure. This problem should be addressed by a new class action lawsuit due to fords continued incompetence as a manufacturer. …”
NHTSA complaint #10473802, filed 2012-09, 219,000 miles“With only 30,000 miles, the fuel rail assembly corroded through, created a pin hole and sprayed fuel against the hood assembly and over the entire top of the engine. This occurred only 2 days after the vehicle had been repaired by ford for the safety steering recall. The vehicle was repaired and mechanic mentioned that he has never seen this before and this assembly should not have corroded.”
NHTSA complaint #10820469, filed 2016-01, 30,000 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 2006 Mercury Grand Marquis
37 complaintsVehicle speed control
37 complaintsSeat belts
22 complaintsSteering
13 complaintsBrakes
12 complaintsElectrical system
8 complaintsEngine
8 complaintsBody and structure
8 complaintsExterior lighting
6 complaintsOther or unknown
5 complaintsTransmission and drivetrain
4 complaintsVisibility (wipers, defrost, mirrors)
4 complaints
← All problems reported for the 2006 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