Table 1 shows six common engine and engine cooling related problems of the 2005 Mercury Mountaineer. The number one most common problem is related to the engine and engine cooling (five problems). The second most common problem is related to the engine shut off without warning (three problems).
Started losing power ,did not want to go pas 30 miles per hr ,then it ramed up and came to a stop with no acceleration ,I shut it off then start it again and was able to get home at a low rate of speed while continuing to have these problems, another day while far away from home the engine rammed Read details...
The engine has shut off twice while driving using cruise control. The first time I was able to get to the side of road and restart it. . The second time I put it in neutral and restarted it while moving. Read details...
While driving 50 mph vehicle stalled three times. Took it to a garage, was told it was necessary to have the vehicle when it stalled. Found eleven (11) similar complaints on your site! perhaps there is some validity to the complaints. Read details...