YearToAvoid

2008 Mercury Grand Marquis Engine Problems

NHTSA has 22 owner complaints about engine problems in the 2008 Mercury Grand Marquis, 28% of all 79 complaints for this model year. That is #3 highest engine complaint count among 7 Grand Marquis model years. These complaints report 5 crashes, 1 fire, and 4 injuries. Median mileage at failure: 23,400 miles.

Engine complaints
22
28% of 79
Crashes reported
5
Fires reported
1
Injuries reported
4
Median mileage
23,400 mi
Related recalls
0

When 2008 Mercury Grand Marquis engine complaints were filed

First complaint Sep 26, 2007, latest Mar 9, 2021.

2008 Mercury Grand Marquis engine complaints: complaints filed per month4Sep 2007Nov 2008Feb 2010Nov 2010May 2013Aug 2013Mar 2014May 2019
22 complaints filed with NHTSA from Sep 2007 to Mar 2021; peak Nov 2007 (4).

Engine recalls for the 2008 Mercury Grand Marquis

No safety recalls on record for this model year.

Engine complaints by Grand Marquis model year

Raw complaint counts per model year; newer years have had less time to accumulate complaints.

  1. 200547 (10%)
  2. 200645 (31%)
  3. 200720 (21%)
  4. 200822 (28%)
  5. 20096 (23%)
  6. 20105 (21%)
  7. 20110 (0%)

Frequently asked questions

Does the 2008 Mercury Grand Marquis have engine problems?
NHTSA has 22 owner complaints about the engine in the 2008 Mercury Grand Marquis, 28% of all complaints for this model year, including 5 that report a crash. Median mileage at failure is 23,400 miles.
Which Mercury Grand Marquis year has the most engine complaints?
The 2005 Mercury Grand Marquis has the most engine complaints (47), compared with 22 for the 2008.
Is there a engine recall for the 2008 Mercury Grand Marquis?
No NHTSA recall campaign for the 2008 Mercury Grand Marquis is classified under engine. Complaints alone do not trigger a recall; check the full recall list and your VIN.

Sources: NHTSA Office of Defects Investigation complaint and recall databases; U.S. EPA fuel economy data; NHTSA 5-Star Safety Ratings. Complaints are unverified owner reports.

Data updated Sep 24, 2026. Read the methodology and data sources. The Complaint Index is based on NHTSA owner complaints and recalls; it is not a reliability rating.