Table 1 shows one common other fuel system related problems of the 2010 Mercury Mountaineer.
| Problem Category | Number of Problems |
|---|---|
| Other Fuel System problems |
At high speeds, the car stalls. It also stalls at stop lights. This happens repeatedly, and Ford cannot figure out what is wrong with it.
While driving the Mountaineer I was slowing for a stoplight shortly after starting it up (had driven about 1/3 mile). The engine suddenly started to speed up and required significant extra braking force to come to a stop. I put the car in nuetral and the engine ran at about 3,300 rpm for about 10 seconds. This is the third time this has happened. The first time the thermostat was replaced. The second time the throttle body was replaced. The third time the vehicle was checked but no defect could be found. The second time I also put it in nuetral and it also ran at about 3,300 rpm for about 10 seconds.