2004 Mazda Miata

Introduction

The 2004 Mazda Miata is a two-seat, rear-wheel-drive sports car powered by a 1.8-liter inline-four engine. It is available with a five-speed manual transmission or a four-speed automatic transmission. The Miata is known for its nimble handling, responsive steering, and affordable price. However, like any vehicle, it has certain issues that owners should be aware of.

Engine

• 1.8L Inline-Four
  • Timing Chain Tensioner Failure:
    • Description/Symptoms: Failure of the timing chain tensioner can cause the timing chain to skip, resulting in engine damage. Symptoms include a rattling noise from the engine, loss of power, and illuminated check engine light.
    • Solution: Replacement of the timing chain tensioner.
    • Estimated Cost to Fix: $500 - $1,000+
    • Recalls: None Found
  • Knock Sensor Failure:
    • Description/Symptoms: A faulty knock sensor can cause the engine to run poorly and experience detonation. Symptoms include pinging or knocking noises from the engine, hesitation during acceleration, and poor fuel economy.
    • Solution: Replacement of the knock sensor.
    • Estimated Cost to Fix: $200 - $300
    • Recalls: None Found

Transmission

• Five-Speed Manual Transmission
  • Grinding When Shifting:
    • Description/Symptoms: Difficulty shifting gears, accompanied by grinding noises. The issue may be caused by worn synchronizers or a bent shift fork.
    • Solution: Overhaul of the transmission, which may include replacing the synchronizers, shift fork, and other components.
    • Estimated Cost to Fix: $1,000 - $2,000+
    • Recalls: None Found
• Four-Speed Automatic Transmission
  • Transmission Slippage:
    • Description/Symptoms: Loss of power accompanied by a high-pitched whine or grinding noise. The transmission may fail to engage or stay in gear.
    • Solution: Overhaul or replacement of the transmission.
    • Estimated Cost to Fix: $2,000 - $4,000+
    • Recalls: None Found

Suspension

• Worn Ball Joints:
  • Description/Symptoms: Worn ball joints can lead to clunking or rattling noises from the suspension, as well as uneven tire wear.
  • Solution: Replacement of the ball joints.
  • Estimated Cost to Fix: $200 - $500
  • Recalls: None Found
• Leaking Shock Absorbers:
  • Description/Symptoms: Worn or damaged shock absorbers can cause the vehicle to ride rough or unevenly. Leakage may be visible from the shock absorbers.
  • Solution: Replacement of the shock absorbers.
  • Estimated Cost to Fix: $300 - $700
  • Recalls: None Found

Electrical

• Alternator Failure:
  • Description/Symptoms: A faulty alternator can lead to insufficient charging of the battery, resulting in electrical system malfunctions and difficulty starting the vehicle. Symptoms include dim headlights, illuminated battery light, and slow cranking.
  • Solution: Replacement of the alternator.
  • Estimated Cost to Fix: $300 - $500
  • Recalls: None Found
• Faulty Ignition Coil:
  • Description/Symptoms: A malfunctioning ignition coil can cause engine misfires, rough idle, and reduced power output.
  • Solution: Replacement of the ignition coil.
  • Estimated Cost to Fix: $100 - $250
  • Recalls: None Found

Exterior

• Cracked Headlights:
  • Description/Symptoms: Cracked headlights can allow moisture to enter, reducing visibility and increasing the risk of electrical problems.
  • Solution: Replacement of the headlights.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found
• Damaged Roof Panel:
  • Description/Symptoms: Dents or scratches on the roof panel can affect the vehicle’s appearance and potentially compromise its structural integrity.
  • Solution: Repair or replacement of the roof panel.
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found

Interior

• Faulty Climate Control Panel:
  • Description/Symptoms: Malfunction of the climate control panel can lead to insufficient heating or cooling.
  • Solution: Replacement or repair of the climate control panel.
  • Estimated Cost to Fix: $200 - $500
  • Recalls: None Found
• Broken Seat Adjusters:
  • Description/Symptoms: Broken or malfunctioning seat adjusters can prevent the driver from finding a comfortable driving position.
  • Solution: Replacement of the seat adjusters.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found

Summary

The 2004 Mazda Miata is generally a reliable vehicle, but like any car, it has its share of issues. The most severe and costly problems are timing chain tensioner failure and transmission slippage. However, most of the other issues are relatively minor and can be addressed affordably. Overall, the Miata’s strengths outweigh its weaknesses, making it a good choice for drivers seeking a fun and affordable sports car.