2001 Mitsubishi Diamante

Introduction: The 2001 Mitsubishi Diamante is a midsize luxury sedan that was available with two engine options: a 3.0L V6 and a 3.5L V6. Both engines were paired with a 4-speed automatic transmission. The Diamante is known for its comfortable interior, spacious cabin, and smooth ride. However, it is also known to have several common issues.

Engine 3.0L V6

• Intake Manifold Gasket Leak
  • Description/Symptoms: Oil or coolant leaks from the intake manifold gasket, often accompanied by a rough idle or poor engine performance.
  • Solution: Replace the intake manifold gasket.
  • Estimated Cost to Fix: $250-$400
  • Recalls: None Found
• Exhaust Manifold Leak
  • Description/Symptoms: Exhaust leaks from the exhaust manifold, often accompanied by a ticking or rattling noise.
  • Solution: Replace the exhaust manifold gasket.
  • Estimated Cost to Fix: $150-$300
  • Recalls: None Found

3.5L V6

• No Major or Common Issues Found

Transmission 4-Speed Automatic

• Shift Solenoid Failure
  • Description/Symptoms: Difficulty shifting gears, slipping transmission, or transmission failure.
  • Solution: Replace the shift solenoid.
  • Estimated Cost to Fix: $500-$1,000
  • Recalls: None Found
• Torque Converter Failure
  • Description/Symptoms: Shuddering or slipping during acceleration, loss of power, or transmission failure.
  • Solution: Replace the torque converter.
  • Estimated Cost to Fix: $1,200-$1,800
  • Recalls: None Found

Suspension

• Strut Mount Failure
  • Description/Symptoms: Clunking or rattling noise when driving over bumps, reduced handling, or uneven tire wear.
  • Solution: Replace the strut mounts.
  • Estimated Cost to Fix: $200-$300 per strut
  • Recalls: None Found
• Rear Suspension Bushings Deterioration
  • Description/Symptoms: Squeaking or clunking noise from the rear suspension, reduced handling, or misalignment.
  • Solution: Replace the rear suspension bushings.
  • Estimated Cost to Fix: $300-$500
  • Recalls: None Found

Electrical

• Alternator Failure
  • Description/Symptoms: Dim headlights, battery warning light illuminated, or electrical system failure.
  • Solution: Replace the alternator.
  • Estimated Cost to Fix: $500-$800
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Battery discharges prematurely, often overnight or when the car is not in use.
  • Solution: Diagnose and repair the source of the battery drain, such as a faulty door switch or parasitic draw.
  • Estimated Cost to Fix: Varies depending on the cause
  • Recalls: None Found

Exterior

• Headlight Lens Hazing
  • Description/Symptoms: Headlight lenses become hazy or cloudy, reducing light output.
  • Solution: Restore or replace the headlight lenses.
  • Estimated Cost to Fix: $100-$300
  • Recalls: None Found

Interior

• Climate Control System Malfunction
  • Description/Symptoms: Heating or air conditioning not working properly, inaccurate temperature control, or excessive noise.
  • Solution: Diagnose and repair the faulty component, such as the blend door actuator or control unit.
  • Estimated Cost to Fix: $200-$600
  • Recalls: None Found
• Dashboard Cracking
  • Description/Symptoms: Cracks or fading on the dashboard, often due to sun exposure or harsh cleaning chemicals.
  • Solution: Replace the dashboard.
  • Estimated Cost to Fix: $600-$1,000
  • Recalls: None Found

Summary The 2001 Mitsubishi Diamante has several common issues, including those related to the engine, transmission, suspension, electrical system, and interior. The severity of these issues can range from minor inconveniences to more expensive and potentially dangerous failures. However, the Diamante also offers a comfortable and spacious interior, a smooth ride, and a reliable 3.5L V6 engine option.