2003 Mercury Grand Marquis power train problems
12 owner complaints filed with NHTSA name the power train on the 2003 Mercury Grand Marquis — 3% of all complaints for this model year.
What owners report
“Rear axle and bearing noises. Marquis bought new. Owner's son-in-law noted minor bearing noise in rear when visiting in 2004. Son-in-law received car after death of mother-in-law in 2012, car had 24k miles at that time. Noticed pronounced rear end noise at that time (a whaa-whaa-whaa matching speed…”
filed Nov 22, 2014
“2003 mercury grand marquis, the built date is 10/2002.grinding noise at right rear axle and fluid leaking at right rear axle seal coating the rear brakes. Right rear axle bearing and shaft assy failure per nhtsa campaign id number 04v328000. The vehicle belonged to my 75 year old father whom passed…”
filed Jan 28, 2014
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Limited slip axle chatter, shudder, binding sensation, or vibration during low speed turning maneuvers. *tt
06216 · Service Bulletin/Repair Instructions · issued Jan 1, 2006
Power Train problems in other Grand Marquis years
| Year | Reports | Share |
|---|---|---|
| 2010 Grand Marquis | 2 | 8% |
| 2009 Grand Marquis | 2 | 8% |
| 2008 Grand Marquis | 3 | 4% |
| 2007 Grand Marquis | 5 | 5% |
| 2006 Grand Marquis | 4 | 3% |
| 2005 Grand Marquis | 5 | 1% |
| 2004 Grand Marquis | 9 | 3% |
| 2002 Grand Marquis | 1 | 1% |
| 2001 Grand Marquis | 13 | 8% |
| 2000 Grand Marquis | 6 | 4% |
| 1999 Grand Marquis | 12 | 7% |
| 1998 Grand Marquis | 8 | 6% |
Other reported problem areas on the 2003 Mercury Grand Marquis
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.