One problem related to automatic transmission torque converter has been reported for the 2006 Mercury Mountaineer. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Mercury Mountaineer based on all problems reported for the 2006 Mountaineer.
I purchased the 2006 Mercury Mountaineer in July 2011. When I went to take the kids on vacation the car hesitated and stopped on the highway then felt like we were rear ended, very dangerous with the hesitation on acceleration almost crashed. Called the place I purchased they have now replaced the torque converter and reset the tcm the vehicle is even worse and they also have had it for 34 days on and off. Called Ford they said they have no program to fix and will not replace the transmission which needs to be replaced. The dealer reports without a bad code even though they know the vehicle is hazardous they cannot find the problem to fix, I said please just replace the transmission and unfortunately to no vail I have puchased a $18,000 hazard that I only was able to drive for 30 days, traded my other vehicle and gave them $1600 cash for downpayment I just want my vehicle fixed. . . .