2008 Mercury Mountaineer Engine Problems
- Complaints
- 6about this part
- Share
- 6%of 96 total for the year
- Median mileage
- 63,188miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the engine of the 2008 Mercury Mountaineer, 6% of the 96 complaints for this model year. Where a mileage was given, the median is 63,188 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.
“Car when idle shuts off in middle of traffic locking break an steering wheel can cause accident happened to me in middle of traffic thank god I was close to emergency exit car shutoff not allowing to brake had to press emergency brake.”
NHTSA complaint #11323974, filed 2020-05, 140,074 miles“Vehicle is missing, now shaking. Need spark plug replaced but is stuck. Needed special tool/equipment to get out. Will be very costly. I shouldn't have to have this problem since I only purchased it almost 2 yrs ago. I am really contemplating suing!!”
NHTSA complaint #10496692, filed 2013-02, 86,400 miles“Engine will not turn over. All electronics work. Keep turning ignition key on and off sometimes it will start in a few minutes other times it has to sit for a half hour or more. Dome light will come on for no reason. After reading others having same issues, I turned on easy access and slightly turned ignition key and sure enough the seat went back and dome light came on. This vehicle has been to a ford dealer numerous times, once towed, and they can't seem to duplicate the problem. Thanks to this website I now have more information and hopefully will be able to get this on going issue fixed. …”
NHTSA complaint #10609098, filed 2014-07, 63,188 miles“**************************engine will shutoff without warning********************** it has happened with various levels of gas, various weather conditions, and both while stopped and moving. The check fuel filler inlet light will come on. Sometimes, the check engine light will remain on, but will clear within the next startup or two. Car has been at dealers at least 4 times for issue. Engine throttle body and crankshaft sensors have been replaced. In the beginning, the vehicle would do this once or twice, then run perfectly for months at a time. …”
NHTSA complaint #10683911, filed 2015-02, 24,000 miles“I have 2 broken bolts on my rt side exhaust manifold and once and a while can smell exhaust fumes in the truck. I've taken it to five separate mechanics for diagnostics the repairs are very expensive and everyone said there should be a recall for this. After a little research there are hundreds if not thousands with this same problem I have grandchildren who have to drive in this truck every day and are subject to dangerous fumes why !!!!!!!!! Hasn't ford done anything about this. …”
NHTSA complaint #10536855, filed 2013-08Related service bulletins
- 10143079Jun 1, 2018Various vehicles equipped with a 4.6L, 5.4L, 6.8L modular 3 valve engine built on or before 8-Jan-2016 may exhibit symptoms that may include upper end engine noise, rough…
- 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…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2010 | 3 | 23% |
| 2008 | 6 | 6% |
| 2007 | 5 | 6% |
| 2006 | 14 | 12% |
| 2005 | 7 | 9% |
| 2004 | 8 | 4% |
| 2003 | 1 | 1% |
| 2002 | 2 | 1% |
| 2001 | 1 | 5% |
| 2000 | 4 | 3% |
| 1998 | 2 | 1% |
Other parts of the 2008 Mercury Mountaineer
54 complaintsElectrical system
39 complaintsTransmission and drivetrain
9 complaintsExterior lighting
6 complaintsOther or unknown
6 complaintsBrakes
5 complaintsInterior lighting
4 complaintsSeat belts
4 complaintsEngine cooling
3 complaintsFuel system
3 complaintsSteering
3 complaintsBody and structure
3 complaints
← All problems reported for the 2008 Mercury Mountaineer
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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