One problem related to transmission pump has been reported for the 2002 Mercury Mountaineer. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Mercury Mountaineer based on all problems reported for the 2002 Mountaineer.
In my 2002 Mercury Mountaineer (75k miles), the transmission pump suddenly failed, luckily the car was parked at home when we noticed the issue. The Ford dealership wants $1500 to replace the pump since they have to tear apart the transmission to get to the pump. According the technician, the transmission has no signs of any problems (no metal shavings, fluid looks great, no wear). Ford stated the vehicle was too old and had too many miles for Ford to take any kind of responsibility. Ford stated it was outside their 3 yr / 36,000 mile responsibility. Ford will do nothing. 1. None, one day I went to drive the vehicle and every gear I shift to acted like it was in neutral. 2. The pump failure happened once, then needed towed to the dealer for repair. 3. The transmission pump was rebuilt (parts - $200, labor - $1300).