2002 Mitsubishi Diamante

The 2002 Mitsubishi Diamante is a mid-size sedan known for its comfortable ride and relatively upscale features for its time. It came equipped with a 3.5L V6 engine producing around 205 horsepower and 231 lb-ft of torque. The Diamante was generally praised for its smooth engine and comfortable interior, but it also received criticism for its somewhat dated styling and average fuel economy.

Engine

3.5L V6 (6G74)

• Timing Belt Failure
  • Description/Symptoms: The timing belt is crucial for synchronizing the crankshaft and camshaft. Over time, it can degrade and eventually snap. Symptoms include engine misfires, complete engine failure, and a ticking noise before failure.
  • Solution: Replacing the timing belt, tensioner, and water pump is the recommended solution.
  • Estimated Cost to Fix: $500 - $1000+
  • Recalls: None Found
• Valve Cover Gasket Leaks
  • Description/Symptoms: The valve cover gaskets can dry out and crack over time, leading to oil leaks. Oil may be visible on the engine exterior, and there might be a burning oil smell.
  • Solution: Replace the valve cover gaskets.
  • Estimated Cost to Fix: $150 - $300
  • Recalls: None Found
• Engine Oil Leaks
  • Description/Symptoms: Oil leaks are common due to seals and gaskets drying out, especially around the oil pan and rear main seal.
  • Solution: Identify the source of the leak and replace the affected seals or gaskets.
  • Estimated Cost to Fix: $100 - $500+ depending on location
  • Recalls: None Found

Transmission

• No Issues Found

Suspension

• Strut Mount Failure
  • Description/Symptoms: The strut mounts can wear out, causing clunking noises, especially when going over bumps.
  • Solution: Replace the strut mounts.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found
• Worn Control Arm Bushings
  • Description/Symptoms: Control arm bushings can deteriorate, leading to looseness in the suspension, poor handling, and clunking noises during acceleration or braking.
  • Solution: Replace the control arm bushings or the entire control arm assembly.
  • Estimated Cost to Fix: $150 - $400 per arm
  • Recalls: None Found

Electrical

• Power Window Motor Failure
  • Description/Symptoms: Power windows may stop working or operate intermittently.
  • Solution: Replace the faulty power window motor.
  • Estimated Cost to Fix: $150 - $300
  • Recalls: None Found
• ABS Sensor Failure
  • Description/Symptoms: The ABS light may illuminate, and the ABS system may not function correctly.
  • Solution: Diagnose which sensor is faulty and replace it.
  • Estimated Cost to Fix: $100 - $300
  • Recalls: None Found

Exterior

• Rust
  • Description/Symptoms: Rust can occur on body panels, especially in areas exposed to salt or moisture.
  • Solution: Treat and repair rusted areas.
  • Estimated Cost to Fix: Varies greatly depending on severity and location.
  • Recalls: None Found

Interior

• Cracked Dashboard
  • Description/Symptoms: The dashboard can crack due to sun exposure and age.
  • Solution: Repair the cracks or replace the dashboard.
  • Estimated Cost to Fix: $100 - $800+
  • Recalls: None Found

Summary

The 2002 Mitsubishi Diamante is prone to some common issues that are typical for vehicles of its age. Engine issues mainly revolve around leaks and timing belt maintenance. Suspension problems often include worn bushings and strut components. Electrical issues with power windows and ABS sensors are also frequently reported. While not all Diamantes will experience these issues, it is wise to inspect these areas when considering purchasing one. The severity of the issues ranges from minor annoyances to potentially costly repairs, so budgeting for maintenance and potential repairs is advisable.