2008 Mercury Mountaineer Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2008 Mercury Mountaineer
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2008 Mercury Mountaineer ProblemsHeater Stuck on Hottest Setting Due to Broken Heater Blend Door
A failed heater blend door or actuator can cause the temperature control for the HVAC system to stop working. A clicking sound from the dash area would commonly indicate an actuator fault. If the heater gets stuck on the hottest setting, the heater blend door may be broken requiring replacement of the heater box to repair the issue.
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.
A cosmetic crack may develop on the plastic liftgate trim panel. Our technicians tell us the Ford has released a service procedure to replace the applique without damage the the liftgate glass.
2008 Mercury Mountaineer QuestionsWhy is my 20008 mountaineer is only blowing cold air? it comes up to temp fine (1 answer)
It comes up to temp fine , has plenty of antifreeze and hose is hot on both ends.
the other vents are fine, they blow COLD a/c
Mountaineer has no transmission dip stick. At present it is a sealed system which requires a trip to Mercury to check the tans oil level!!
2008 Mercury Mountaineer RecallsOil Cooler Lines May Not Be Tight
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.