2007 Mercury Mountaineer
2007 Mercury Mountaineer
Overview
The 2007 Mercury Mountaineer, a mid-size SUV, offered a blend of utility and comfort, often serving families and those needing towing capability. Based on the Ford Explorer platform, it shared many of its mechanical components. Reliability for the 2007 model year is generally considered average for its class and era. While not plagued by widespread catastrophic failures, certain areas have seen more frequent reports of issues than others. Owners often report satisfaction with its ride quality and interior space, but maintenance and repair costs can be a factor, especially as the vehicle ages. Understanding common problem areas can help potential buyers and current owners manage expectations and maintenance.
Engine
4.0L V6 SOHC
Cooling System Leaks
- Symptoms: Coolant leaks from hoses, water pump, or radiator; overheating.
- Solution: Replacement of leaking components (hoses, water pump, radiator).
- Cost: $300 - $700
Camshaft Synchronizer Failure
- Symptoms: Rattling noise from the front of the engine, especially on startup; check engine light.
- Solution: Replacement of camshaft synchronizer and potentially related timing components.
- Cost: $600 - $1200
4.6L V8 SOHC
No widespread issues reported.
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Transmission
5R55W Automatic Transmission
Solenoid Issues
- Symptoms: Harsh shifting, delayed engagement, slipping gears, transmission warning light.
- Solution: Replacement of transmission solenoids.
- Cost: $400 - $800
Torque Converter Problems
- Symptoms: Shuddering, slipping, or failure to engage.
- Solution: Replacement of the torque converter.
- Cost: $800 - $1500
Suspension
Independent Front Suspension
Ball Joint Wear
- Symptoms: Clunking or popping noises over bumps, uneven tire wear, steering wander.
- Solution: Replacement of worn ball joints.
- Cost: $300 - $600
Control Arm Bushing Deterioration
- Symptoms: Squeaking or creaking noises, poor handling, uneven tire wear.
- Solution: Replacement of worn control arm bushings.
- Cost: $250 - $500
Electrical
General Electrical System
Window Regulator Failure
- Symptoms: Power windows not operating, slow operation, or falling glass.
- Solution: Replacement of the window regulator and motor assembly.
- Cost: $200 - $400
Instrument Cluster Malfunctions
- Symptoms: Gauges not working, flickering lights, or complete failure of the cluster.
- Solution: Repair or replacement of the instrument cluster.
- Cost: $400 - $800
Exterior
Body and Trim
No widespread issues reported.
- Symptoms: N/A
- Solution: N/A
- Cost: Varies
Interior
Cabin Components
HVAC Blower Motor Failure
- Symptoms: No air coming from vents or intermittent airflow.
- Solution: Replacement of the HVAC blower motor.
- Cost: $150 - $300
Summary Verdict
The 2007 Mercury Mountaineer presents a mixed reliability profile. While the 4.6L V8 engine and general exterior/interior components tend to be robust, owners should be aware of potential issues with the 4.0L V6 engine’s cooling system and camshaft synchronizers, as well as the 5R55W transmission’s solenoids and torque converter. Suspension components like ball joints and bushings are also common wear items that may require attention. Electrical gremlins, particularly with window regulators and instrument clusters, can also arise. Regular maintenance and prompt attention to early symptoms are crucial for maximizing the longevity and minimizing unexpected repair costs of this SUV.