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Fuel systemPart report

2010 Mercury Grand Marquis Fuel system Problems

Complaints
1about this part
Share
4%of 25 total for the year
Median mileage
71,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the fuel system of the 2010 Mercury Grand Marquis, 4% of the 25 complaints for this model year. Where a mileage was given, the median is 71,000 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.

“Throttle body failure__ engine goes to dead idle at highway speeds, leaving the driver and passengers helpless to exit onto the breakdown lane or shoulder if you are not in the right hand lane when it happens, ie if you are on a 70 MPH interstate in the center lane with vehicles passing you on both sides while you are helplessly coasting to a stop unable to remove yourself from the center lane, you would be subject to cause a chain reaction accident. …”

NHTSA complaint #10954151, filed 2017-02, 71,000 miles

Fuel system: other model years

YearComplaintsShare of year
2011111%
201014%
2009312%
200845%
200755%
2006139%
200520%
200462%
2003103%
200245%
200153%
200085%
199964%
199886%
19973210%
1996219%
199584%
199464%
199364%
1992208%
199145%
199024%
198959%
198857%
198725%
1985210%
1984213%
1983114%

Other parts of the 2010 Mercury Grand Marquis

Steering
6 complaints
Body and structure
5 complaints
Electrical system
3 complaints
Vehicle speed control
3 complaints
Air bags
2 complaints
Brakes
2 complaints
Equipment
2 complaints
Exterior lighting
2 complaints
Transmission and drivetrain
2 complaints
Visibility (wipers, defrost, mirrors)
2 complaints
Engine
1 complaints
Engine cooling
1 complaints

← All problems reported for the 2010 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