Mercury Mountaineer Repair and Maintenance
A guide to problems, costs, maintenance and repair for your Mercury Mountaineer
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Mercury Mountaineer ProblemsCoolant Leak/Overheating Due to Radiator Leak
A coolant leak may develop from the radiator. Ford has released and updated radiator and powertrain control module (PCM) software update to address this issue. The software update includes revised cooling fan operating parameters. Failure to complete both service procedures may result in repeated radiator failures.
The composite (plastic) intake manifold may crack near the thermostat housing and cause a coolant leak. Ford released an updated manifold that was reinforced to prevent a recurrence. No recall was issued for this problem but Ford did extend the warranty to seven years on some models from the date of purchase.
Various problems with the 5-speed automatic transmission were common. These problems can be more common on the 2002 models with build dates before March, 2002. There are many service bulletins describing the diagnoses and repairs, which include fluid leak repairs, transmission software updates, or internal failures requiring a costly repair.
Mercury Mountaineer QuestionsI give it a jump and will stay on but after 5mins it will shut off by its self (1 answer)
Why does my mountaineer turn off while its idling and will not start again
Runs idle but dies out when mashing on vas
Mercury Mountaineer RecallsFord and Mercury Recall 2010 Models for Improper Seat Back Retention Requirements
Ford has recalled certain 2010 model year Ford Explorer, Explorer Sport Trac, Fusion, and Fusion Hybrid vehicles along with Mercury Mountaineer, Milan, and Milan Hybrid vehicles for an issue with the front seat backs equipped with manual recliner mechanisms. In the event of a crash, the seat back and head restraint may move rearward, increasing the risk of injury. This is due to incorrect specification in the design of the gear plate teeth on the seat back recliner. Dealers will replace the manual recliners free of charge.
A bolt securing the transmission oil cooler lines to the transmission may not have been sufficiently torqued during assembly. If the oil cooler lines separate from the transmission and transmission fluid contacts the catalytic converter, a fire could start. Dealers will inspect and tighten the transmission cooler line attachment. The recall began August 30, 2007. The Ford recall number is 07S56.