2004 Mercury Mountaineer Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Mercury Mountaineer
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2004 Mercury Mountaineer ProblemsWorn Timing Chain Cassettes May Cause Rattling Noise From Engine
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.
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.