2002 Mercury Grand Marquis engine and engine cooling problems
10 owner complaints filed with NHTSA name the engine and engine cooling on the 2002 Mercury Grand Marquis — 13% of all complaints for this model year.
What owners report
“Tl* the contact owns a 2002 mercury grand marquis. The contact stated that there was a premature failure in which there was an internal crack on the intake manifold, which caused water intrusion that affected other components. The vehicle was not diagnosed or repaired. The manufacturer was notified…”
filed Jan 19, 2017
“I was leaving a shopping center parking lot when I started the car up and everything was okay. I shifted the car into reverse and immediately the engine started to race extremely fast causing the car to move backwards with my foot still on the brake. I tried to turn off the ignition, but I was too…”
filed May 10, 2011
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Some 1997-2008 vehicles equipped with a 4.6l 2v, 5.4l 2v, or 6.8l 2v engine--spark plug thread repair procedure--not covered under new vehicle limited warranty. *nj this includes f-53 motorhome chassis. Updated 2/23/10…
07212 · Service Bulletin/Repair Instructions · issued Oct 1, 2007Wds cop kit diagnostic tip - coil on plug (cop) ignition systems - engine misfire or rough running. *tt
041601 · Service Bulletin/Repair Instructions · issued Nov 14, 2005
Engine and Engine Cooling problems in other Grand Marquis years
| Year | Reports | Share |
|---|---|---|
| 2010 Grand Marquis | 1 | 4% |
| 2008 Grand Marquis | 5 | 6% |
| 2007 Grand Marquis | 3 | 3% |
| 2006 Grand Marquis | 2 | 1% |
| 2005 Grand Marquis | 9 | 2% |
| 2004 Grand Marquis | 10 | 3% |
| 2003 Grand Marquis | 13 | 4% |
| 2001 Grand Marquis | 20 | 13% |
| 2000 Grand Marquis | 17 | 10% |
| 1999 Grand Marquis | 26 | 16% |
| 1998 Grand Marquis | 26 | 18% |
| 1997 Grand Marquis | 124 | 39% |
Other reported problem areas on the 2002 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.