2007 Mercury Mountaineer Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2007 Mercury Mountaineer

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.

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.

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I have an exhaust manifold leak that I am going to replace the manifold gaskets. As I have been a Ford/Mercury owner for decades, I have come to know that one must ask and not assume when attempting to do almost anything involving the engine and adjoining apertures. Any words of wisdom would be a...

You can push accelerator into over drive and the higher rev seems to correct it. The intermittent is getting worse. Feels like no spark to 1 or a few cylinders but intermittently as to almost buck. But not every time you accelerate and doesn't happen when the engine is cold and not up to oper...

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