2010 Mercury Mariner

2010 Mercury Mariner

The 2010 Mercury Mariner is a midsize SUV that was discontinued in 2011. It was available with two engine options: a 2.5-liter four-cylinder engine and a 3.0-liter V6 engine. Both engines were paired with a six-speed automatic transmission. The Mariner received generally positive reviews for its comfortable interior, spacious cargo area, and strong performance. However, it was criticized for its lack of fuel efficiency and dated styling.

Engine

• 2.5-liter four-cylinder engine

  • Intake manifold gasket failure
    • Description/Symptoms: Leaking coolant or oil from the intake manifold gasket, overheating engine, rough idle
    • Solution: Replace intake manifold gasket
    • Estimated Cost to Fix: $400 - $800+
    • Recalls: None Found
  • Timing chain tensioner failure
    • Description/Symptoms: Engine noise, reduced power, check engine light
    • Solution: Replace timing chain tensioner
    • Estimated Cost to Fix: $600 - $1,200+
    • Recalls: None Found

• 3.0-liter V6 engine

  • Valve cover gasket leak
    • Description/Symptoms: Leaking oil from the valve cover gasket, burning oil smell
    • Solution: Replace valve cover gasket
    • Estimated Cost to Fix: $200 - $400+
    • Recalls: None Found
  • Exhaust manifold bolts failure
    • Description/Symptoms: Broken or loose exhaust manifold bolts, exhaust leak
    • Solution: Replace exhaust manifold bolts
    • Estimated Cost to Fix: $150 - $300+
    • Recalls: None Found

Transmission

• Six-speed automatic transmission

  • Torque converter shudder
    • Description/Symptoms: Vibration or shudder during acceleration, especially at low speeds
    • Solution: Replace torque converter
    • Estimated Cost to Fix: $1,200 - $2,000+
    • Recalls: None Found
  • Shift solenoid failure
    • Description/Symptoms: Harsh or delayed shifting, transmission slipping
    • Solution: Replace shift solenoid
    • Estimated Cost to Fix: $300 - $600+
    • Recalls: None Found

Suspension

• Strut mount bearing failure
  • Description/Symptoms: Clunking noise when hitting bumps, unstable handling
  • Solution: Replace strut mount bearing
  • Estimated Cost to Fix: $200 - $400+ per strut
  • Recalls: None Found
• Lower ball joint failure
  • Description/Symptoms: Loose or worn ball joint, clunking or popping noise, uneven tire wear
  • Solution: Replace lower ball joint
  • Estimated Cost to Fix: $250 - $500+ per side
  • Recalls: None Found

Electrical

• Battery drain
  • Description/Symptoms: Battery dies prematurely, especially after sitting overnight
  • Solution: Test and replace faulty electrical components (may include alternator, battery, or wiring)
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found
• Headlight switch failure
  • Description/Symptoms: Headlights do not turn on or off, flickering headlights
  • Solution: Replace headlight switch
  • Estimated Cost to Fix: $150 - $300+
  • Recalls: None Found

Exterior

• Tailgate latch failure
  • Description/Symptoms: Tailgate does not open or close properly, rattling noise
  • Solution: Replace tailgate latch
  • Estimated Cost to Fix: $100 - $200+
  • Recalls: None Found

Interior

• Dashboard rattle
  • Description/Symptoms: Rattle or buzz from the dashboard, especially at higher speeds
  • Solution: Install sound dampening material or tighten loose components
  • Estimated Cost to Fix: $100 - $300+
  • Recalls: None Found
• Door lock actuator failure
  • Description/Symptoms: Door locks do not work, clicking noise from door lock
  • Solution: Replace door lock actuator
  • Estimated Cost to Fix: $150 - $300+ per door
  • Recalls: None Found

Summary The 2010 Mercury Mariner has a range of issues that vary in severity and cost. Some common engine issues include intake manifold gasket failure, timing chain tensioner failure, and valve cover gasket leaks. Transmission issues may include torque converter shudder and shift solenoid failure. Suspension issues include strut mount bearing failure and lower ball joint failure. Electrical problems can include battery drain and headlight switch failure. Exterior issues may include tailgate latch failure, while interior issues include dashboard rattle and door lock actuator failure. Overall, the Mariner has a moderate number of issues, but many of them are relatively inexpensive to fix.