2006 Mercury Mountaineer Transmission and drivetrain Problems
- Complaints
- 39about this part
- Share
- 33%of 117 total for the year
- Median mileage
- 53,000miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 39 complaints about the transmission and drivetrain of the 2006 Mercury Mountaineer, 33% of the 117 complaints for this model year. Where a mileage was given, the median is 53,000 miles. 2 of these say a crash was involved and 2 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I have gone through 3 radiators so far and now I need a 4th. This time, the radiator caused the pumps to start leaking ( which are not serviceable) and eventually ruined my transmission, rendering the truck non-drivable. This problem has cost me thousands of dollar and I want a recall to start on this part with ford.”
NHTSA complaint #10558560, filed 2014-01, 115,000 miles“The gear shaft will stop my car from starting when I turn it off. It will also make my car vut off while driving..the button on the gear stick will get stuck and I am able to shift gears...when the car is not started and my foot is not on the breaks. Even when the button is not stuck, it still will get stuck in park and wont let me start my car..a recall should be started..because I have seen others on here with similar complaints..so its a manufacturing accident not the consumer.”
NHTSA complaint #11194823, filed 2019-04, 166,000 miles“I have just purchased a used 2006 Mercury Mountaineer awd v8. When the vehicle is coming to a stop, the transmission lunges forward as it is downshifting. It feels just like another vehicle has hit my vehicle from behind. This is a dangerous situation since as the vehicle lunges forward, it could hit a pedestrian in a cross walk or hit another vehicle in front of me.”
NHTSA complaint #10252649, filed 2008-12, 20,784 miles“I own a 2006 Mercury Mountaineer (v8 awd). Everytime I stop the transmission jolts forward as if we have been involved in a rear-end collision. I have called ford motor company to complain and they have agreed that there is a problem but not to the degree that they would initiate a recall. This is very dangerous and someone is eventually going to get hurt if not killed.”
NHTSA complaint #10240639, filed 2008-09, 38,000 miles“My car is 2006 Mercury Mountaineer in 2007 already the shift had to be replaced as it continually got stuck. One dealer told me the shift needed to changed yet again and now when the car is taken out of park into any gear it wont move it takes about 25 mins to actually put into gear. The dealer said it was a shift solenoid I had it replaced a transmission flush and reprogram and still the same problem the car only has 62,000 miles.”
NHTSA complaint #10374817, filed 2011-01, 62,000 milesRelated service bulletins
- 10243490Sep 7, 2023When performing any transmission fluid changes or topoffs involving MERCON SP, MERCON LV has replaced all versions of MERCON SP and can be used going forward. Mixing MERCON LV…
- 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…
- 10028736May 1, 2009Ford: some vehicles may exhibit oil separation from the internal lube found in the unitized cartridge seal. Oil separation appears to be and is often misdiagnosed, as an axle…
- 10026385Oct 23, 2008Ford/mercury: 4.0l/4.6l hard start/rough running; after long hot soak/dip in rpm when coming to a stop; built on or before 4/2/08. May exhibit a dip in rpm below normal idle…
- 10032229Oct 1, 2007Ford/mercury: some vehicles equipped with 6r60 transmissions may exhibit various transmission performance issues. When compared to other transmissions, some of the shift…
- 10021040Feb 26, 2007Calibration update 4.0l - various symptoms - surge, hesitation, torque converter cycling, no up shift after forced downshift, and poor a/c performance.
- 10019029Jan 1, 2006Harsh or delayed 1-2, 2-1 and/or 3-2 shift.
Transmission and drivetrain: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2010 | 2 | 15% |
| 2008 | 9 | 9% |
| 2007 | 25 | 31% |
| 2006 | 39 | 33% |
| 2005 | 19 | 23% |
| 2004 | 64 | 30% |
| 2003 | 42 | 28% |
| 2002 | 144 | 39% |
| 2001 | 1 | 5% |
| 2000 | 15 | 12% |
| 1999 | 8 | 5% |
| 1998 | 9 | 4% |
| 1997 | 8 | 2% |
Other parts of the 2006 Mercury Mountaineer
43 complaintsEngine
14 complaintsElectrical system
9 complaintsOther or unknown
9 complaintsBody and structure
7 complaintsSeats
6 complaintsFuel system
5 complaintsBrakes
3 complaintsVehicle speed control
3 complaintsEquipment
2 complaintsExterior lighting
2 complaintsTires
2 complaints
← All problems reported for the 2006 Mercury Mountaineer
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