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2008 Mercury Mountaineer Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2008 Mercury Mountaineer

2008 Mercury Mountaineer Problems

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 rear wiper may stop working. This could be due to a rear wiper motor that has failed requiring replacement.

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.

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2008 Mercury Mountaineer Questions

While attempting to remove the trim around the shifter to find the light-bulb I'm getting som resistance on the left side - so if I pry too hard I know it's going to break. What's the trick?

This has happened many times it was suggested to put silicone on the tab on the back of the hood that didn't work plugs have been changed and new coils installed.

Thanks

where do check for transmission fluid?

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2008 Mercury Mountaineer Recalls

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.

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2008 Mercury Mountaineer Reviews

I have had issues of the car not starting when the starter relay gets hot. Relays in the fuse box under the hood should never get hot, or so hot it burns blisters on your fingers when trying to pull them out. Once I pull the starter relay and let it cool down I reinsert it and the car will start. I have taken it to 2 dealerships, called 2 others and have even written and called Ford and no he...

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