2006 Mercury Grand Marquis Engine cooling Problems
- Complaints
- 2about this part
- Share
- 1%of 143 total for the year
- Median mileage
- 99,300miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine cooling of the 2006 Mercury Grand Marquis, 1% of the 143 complaints for this model year. Where a mileage was given, the median is 99,300 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.
“No abnormal operation noted before event. The failure is spark plug blow out on a 4.6l engine. The failure occurred twice in a 2 week time period on the same cylinder damaging the spark plug and coil pack. First instance was the factory installed spark plug.”
NHTSA complaint #10334212, filed 2010-06, 99,300 miles“My 2006 Grand Marquis has a very annoying roaring noise when the tachometer is between 1800 and 2000 RPM. Also at highway speed between 65mph and 70mph which is about 1800 on the tachometer. Very irritating.”
NHTSA complaint #10209786, filed 2007-11Related service bulletins
- 10109070Sep 21, 2016The Powertrain Control/Emissions Diagnosis (PC/ED) manual has been revised for diagnosing electronic throttle bodies (ETBs). The ETC_ACT and ETC_DSD PIDs should not used to…
- 10029205Jun 1, 2009Ford/mercury/lincoln: vehicles may exhibit one or more of the following symptoms: drive away hesitation, loss of rpm on deceleration, difficulty starting, and/or idle rpm less…
- 10032224Oct 1, 2007Ford: engine cooling fan control relay part availability.
- 10023943Oct 1, 2007Some 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…
- 10021902Jun 25, 2007Engine overheating-poor a/c performance.
- 10020703Dec 28, 2006Engine cooling fan inoperative - engine overheating - poor a/c performance.
- 10021060Aug 1, 2006Engine cooling fan (8c607) inoperative.
- 10018745Nov 14, 2005Wds cop kit diagnostic tip - coil on plug (cop) ignition systems - engine misfire or rough running.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2010 | 1 | 4% |
| 2008 | 5 | 6% |
| 2007 | 3 | 3% |
| 2006 | 2 | 1% |
| 2005 | 9 | 2% |
| 2004 | 10 | 3% |
| 2003 | 13 | 4% |
| 2002 | 10 | 13% |
| 2001 | 20 | 13% |
| 2000 | 17 | 10% |
| 1999 | 26 | 16% |
| 1998 | 26 | 18% |
| 1997 | 124 | 39% |
| 1996 | 85 | 36% |
| 1995 | 8 | 4% |
| 1994 | 15 | 10% |
| 1993 | 7 | 5% |
| 1992 | 19 | 7% |
| 1991 | 10 | 12% |
| 1990 | 3 | 5% |
| 1989 | 6 | 10% |
| 1988 | 7 | 10% |
| 1987 | 5 | 12% |
| 1986 | 4 | 19% |
| 1985 | 3 | 14% |
| 1984 | 5 | 33% |
Other parts of the 2006 Mercury Grand Marquis
37 complaintsVehicle speed control
37 complaintsSeat belts
22 complaintsFuel system
13 complaintsSteering
13 complaintsBrakes
12 complaintsElectrical system
8 complaintsEngine
8 complaintsBody and structure
8 complaintsExterior lighting
6 complaintsOther or unknown
5 complaintsTransmission and drivetrain
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