2006 Mercury MOUNTAINEER problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
117 owner complaints analyzed
1 distinct recall campaigns
58,849 mi median reported failure mileage
Scope: 2006 model year. Data snapshot: . 94 complaints include usable failure mileage.
Most common problems
Power Train:Automatic Transmission is the most frequently named component, appearing in 23 of 117 complaints (19.7%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Transmission and shifting | 28 | 23.9% |
| Engine operation | 7 | 6.0% |
| Braking behavior | 7 | 6.0% |
| Electrical and battery issues | 2 | 1.7% |
| Fuel system concerns | 2 | 1.7% |
| Steering behavior | 1 | 0.9% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Power Train:Automatic Transmission | 23 |
| Engine And Engine Cooling:Cooling System | 19 |
| Engine And Engine Cooling | 17 |
| Engine | 14 |
| Power Train | 14 |
| Unknown Or Other | 9 |
| Electrical System | 7 |
| Seats | 6 |
Power Train:Automatic Transmission: 23; Engine And Engine Cooling:Cooling System: 19; Engine And Engine Cooling: 17; Engine: 14; Power Train: 14; Unknown Or Other: 9; Electrical System: 7; Seats: 6
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 14 |
| 25,000 to 49,999 | 18 |
| 50,000 to 74,999 | 31 |
| 75,000 to 99,999 | 14 |
| 100,000 to 149,999 | 13 |
| 150,000 and above | 4 |
Under 25,000: 14; 25,000 to 49,999: 18; 50,000 to 74,999: 31; 75,000 to 99,999: 14; 100,000 to 149,999: 13; 150,000 and above: 4
50,000 to 74,999 miles has the most reports with usable mileage (31). 23 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2006 | 1 |
| 2007 | 9 |
| 2008 | 9 |
| 2009 | 12 |
| 2010 | 12 |
| 2011 | 24 |
| 2012 | 10 |
| 2013 | 8 |
| 2014 | 7 |
| 2015 | 9 |
| 2016 | 6 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 2 |
| 2021 | 3 |
| 2022 | 1 |
2006: 1; 2007: 9; 2008: 9; 2009: 12; 2010: 12; 2011: 24; 2012: 10; 2013: 8; 2014: 7; 2015: 9; 2016: 6; 2017: 2; 2018: 2; 2019: 2; 2021: 3; 2022: 1
Pattern summary
Power Train:Automatic Transmission leads the component reports. Transmission and shifting appears in 28 complaint narratives. Engine operation appears in 7 complaint narratives. Braking behavior appears in 7 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10179251 · 2007-01-20 (January 20, 2007)
THE TRANSMISSION IN MY 2006 MERCURY MOUNTAINEER HAS "POPPED" INTO REVERSE TWICE ONCE IT WAS PLACED INTO PARK, CAUSING IT TO ROLL BACKWARDS. IT ALSO ROLLS FORWARD AND BACKWARDS WHEN PLACED IN PARK UNTIL IT "CATCHES" AND FINALLY LOCKS IN PLACE. WHEN CLIMBING HILLS OR STEEP GRADES, THE TRANSMISSION WILL SURGE, AND WHEN COMING TO A STOP, THE TRANSMISSION WILL SHIFT HARD AND JERK. *NM
Owner-reported narrative. Look up ODI 10179251 at NHTSA ↗
Owner report 10192811 · 2007-06-08 (June 8, 2007)
TRANSMISSION PROBLEMS THAT RESULTED AFTER RECALIBRATION IN RESPONSE TO RECAL NOTICE. VEHICLE NOW LURCHES FORWARD BY ITSELF WHEN STOPPED AT A TRAFFIC LIGHT. ONE NEEDS TO STAND ON THE BRAKES TO PREVENT VEHICLE FROM STRIKING OTHER VEHICLES.
Owner-reported narrative. 10,750 miles reported. Look up ODI 10192811 at NHTSA ↗
Owner report 10170866 · 2006-10-15 (October 15, 2006)
THE VEHICLE STALLS IN DRIVE WITHOUT WARNING. THE DEALERSHIP HAS BEEN UNABLE TO DETERMINE AND FIX THE PROBLEM.
Owner-reported narrative. 2,757 miles reported. Look up ODI 10170866 at NHTSA ↗
Owner report 10192564 · 2007-06-06 (June 6, 2007)
VEHICLE STALLS AT RANDOM WHILE MY FOOT IS ON THE GAS, BEEN IN THE SHOP NOW 4 TIMES AND NO ONE CAN FIND ANYTHING WRONG
Owner-reported narrative. 14,000 miles reported. Look up ODI 10192564 at NHTSA ↗
Owner report 10191507 · 2007-05-22 (May 22, 2007)
VEHICLE WOULD NOT SHIFT GEARS. 4 RPMS AT 25 MPH. VEHICLE SLOWED. PULLED OVER AND FRONT BRAKES WERE ON FIRE. *AK
Owner-reported narrative. Look up ODI 10191507 at NHTSA ↗
Owner report 10790373 · 2015-11-14 (November 14, 2015)
MOUNTAINEER PREMIER AWD WITH JUST OVER 150,000 MILES. WENT TO RAISE REAR (THIRD ROW) ELECTRICAL SEAT ON DRIVER/LEFT SIDE. MAKES A SLIGHT CLICKING SOUND AND WILL RAISE UP ABOUT 1 INCH, THEN JUST STOPS GOING UP WITH SOUNDS STILL HEARD. FURTHER INVESTIGATION SHOWS A MOTOR IN THE CENTER ALONG A GEAR SHAFT WHICH MUST RAISE THE SEAT. THE MOTOR IS WHIRRING LIKE IT IS FUNCTIONING BUT THE SHAFT DOESN'T MOVE. THERE IS NO WAY TO MANUALLY FULLY RAISE THE SEAT.
Owner-reported narrative. 150,000 miles reported. Look up ODI 10790373 at NHTSA ↗
Owner report 10840007 · 2016-03-05 (March 5, 2016)
2006 MERCURY MOUNTAINEER DRIVING ALONG AROUND TOWN OR HIGHWAY AND WILL JUST LOOSE POWER WITHOUT WARNING AFTER THE FACT THEN THE ENGINE LIGHT COMES ON ALONG WITH A RED WRENCH OR AN ORANGE WRENCH, FIRST PLACE I HAD IT TO SAID IT WAS A NEGATIVE BATTERY CABLE THAT WAS LOOSE SO THEY TIGHTENED THE CABLE, TOOK IT HOME STALLED OUT ON ME, TOOK IT TO ANOTHER DEALER SAID WAS READING THAT IT WAS THE FUEL PUMP DRIVER MODULE DROVE VERY NEXT DAY STALLED ON ME ONCE AGAIN TAKING IT TO THE FORD DEALER ITSELF SAID COULD BE A NUMBER OF THINGS ONE IS THAT THE MASS…
Owner-reported narrative. 134,483 miles reported. Look up ODI 10840007 at NHTSA ↗
Owner report 10446357 · 2012-02-03 (February 3, 2012)
TL* THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. THE CONTACT STATED THAT THE AUTOMATIC FUEL PUMP SHUT OFF WOULD ACTIVATE WHENEVER FUEL WAS DISPENSED INTO THE FUEL TANK AT ANY FUEL LEVEL CAPACITY. IN 2009, THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE THE FUEL VALVE WAS REPLACED. THE SIMILAR FAILURE RECURRED AND THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE DEFECT. THE APPROXIMATE FAILURE MILEAGE WAS 50,000. UPDATED 03/16/12 *BF THE CONSUMER STATED THE VEHICLE WOULD ONLY TAKE A GALLON OF GAS. UPDATED 05/…
Owner-reported narrative. 50,000 miles reported. Look up ODI 10446357 at NHTSA ↗
Owner report 10554180 · 2013-11-30 (November 30, 2013)
VEHICLE EXHIBITED RESISTANCE IN STEERING. FORD DEALER FOUND LOWER STEERING SHAFT U-JOINT FROZEN FROM CORROSION. FORD DEALER STATED THIS CONDITION WAS SIMILAR TO THAT SEEN FOR VEHICLES RECALLED UNDER FORD RECALL 13508 AND EVEN THOUGH IT IS NOT CURRENTLY INCLUDED, FELT THIS VEHICLE SHOULD BE INCLUDED IN THE RECALL. DEALER HAD TO REPLACE THE LOWER STEERING SHAFT ASSEMBLY TO RETURN THE VEHICLE TO A SAFE OPERATING CONDITION. *TR
Owner-reported narrative. 86,546 miles reported. Look up ODI 10554180 at NHTSA ↗