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Problems for specific Mercury Mountaineer years:

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Newest reported 2003 Mercury Mountaineer problems

 

Verified for the Mercury Mountaineer

A rattling noise from the engine may indicate that the timing chain cassette is worn. Our technicians tell us that installing an updated cassette and timing chain tensioner should correct this concern.

22 Reports
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Verified for the Mercury Mountaineer

The intake manifold O-ring gaskets commonly leak, causing stalling and poor idle quality; the Check Engine Light will illuminate.

16 Reports
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Verified for the Mercury Mountaineer

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.

10 Reports
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Verified for the 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.

61 Reports
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Verified for the Mercury Mountaineer

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.

185 Reports
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Verified for the Mercury Mountaineer

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.

39 Reports
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Verified for the Mercury Mountaineer

The rear window wiper may not fully contact the rear window. To fix, replace both the wiper blade and wiper arm.

29 Reports
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