2003 Mercury Mountaineer engine and engine cooling problems
10 owner complaints filed with NHTSA name the engine and engine cooling on the 2003 Mercury Mountaineer — 7% of all complaints for this model year.
What owners report
“I purchased a 2003 mercury mountaineer on 2/15/14 and I took it on a road trip on 2/16/4 with my grandkids. After entering the highway and gaining speed I started to smell a strong burnt rubber and exhaust smell. The smell was very toxic and stuck to our clothing. On 2/18/14, I took it to the…”
filed Feb 19, 2014
“We have experienced two well known issues with the explorer/mountaineer. The body panel on the back hatch is cracked in the middle and friday we had the spark plug blow out of the head/socket stripping the threads out to the point that the common repair kit used for these instances won't work and…”
filed Sep 4, 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 Mountaineer years
| Year | Reports | Share |
|---|---|---|
| 2008 Mountaineer | 3 | 3% |
| 2007 Mountaineer | 4 | 5% |
| 2006 Mountaineer | 43 | 37% |
| 2005 Mountaineer | 5 | 6% |
| 2004 Mountaineer | 11 | 5% |
| 2002 Mountaineer | 33 | 9% |
| 2001 Mountaineer | 1 | 5% |
| 2000 Mountaineer | 5 | 4% |
| 1999 Mountaineer | 12 | 8% |
| 1998 Mountaineer | 20 | 8% |
| 1997 Mountaineer | 14 | 4% |
Other reported problem areas on the 2003 Mercury Mountaineer
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.