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.
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.
Our technicians tell us the spark plugs in this engine can be very difficult to remove. Ford has issued a service bulletin (08-7-6) to address this issue, which includes a recommended procedure on how to remove the plugs. Failure to follow the recommended procedure can result in the one or more spark plugs breaking off in the cylinder head.
The recommend procedure is as follows. Using this procedure will greatly reduce the chance of breaking a spark plug.
1. Break the spark plugs loose when the engine is warm.
2. Turn each plug 1/8 to 1/4 turn and soak the treads with 1/2 to 3/4 teaspoon of Motorcraft Carburetor Tune-Up Cleaner or a quality penetrating oil. Do not try to remove the plugs at this time.
3. Let the threads soak for at least 15 minutes.
4. After the soak period, tighten and loosen each spark plug, working it back and forth until the turning effort is reduced. Then, you can remove the spark plug.
There are special tools available to remove the broken spark plugs and repair shops will often charge additional labor time, over and above the quoted spark plug replacement cost, for the removal of each broken spark plug.
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.