2003 Lexus LX470

Introduction

The 2003 Lexus LX470 is a full-size SUV known for its reliability, luxury, and off-road capabilities. It is powered by a 4.7L V8 engine paired with a 5-speed automatic transmission. The LX470 has received high praise for its ruggedness, smooth ride, and spacious interior. However, there are a few common issues that owners may encounter.

Engine

4.7L V8

• Intake Manifold Runner Control (IMRC) Valve Issues:
  • Description/Symptoms: Sticking or failing IMRC valves can cause a loss of power, rough idling, and increased emissions.
  • Solution: Replace the IMRC valves.
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found
• Timing Belt and Water Pump Failure:
  • Description/Symptoms: Worn or broken timing belts can lead to catastrophic engine damage. Water pump failure can cause overheating.
  • Solution: Replace the timing belt and water pump as part of scheduled maintenance.
  • Estimated Cost to Fix: $1,000 - $1,500+
  • Recalls: None Found
• Oil Leaks:
  • Description/Symptoms: Leaks can occur from various gaskets and seals, causing oil loss.
  • Solution: Replace faulty gaskets or seals.
  • Estimated Cost to Fix: $200 - $1,000+
  • Recalls: None Found

Transmission

5-Speed Automatic

• Shift Solenoid Issues:
  • Description/Symptoms: Faulty shift solenoids can cause erratic shifting, delayed engagement, or slipping.
  • Solution: Replace the shift solenoids.
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found
• Transmission Fluid Leaks:
  • Description/Symptoms: Leaks can occur from various seals or gaskets, causing fluid loss and transmission damage.
  • Solution: Replace faulty seals or gaskets.
  • Estimated Cost to Fix: $200 - $1,000+
  • Recalls: None Found

Suspension

• Front Air Suspension Failure:
  • Description/Symptoms: Malfunctioning air suspension struts can cause uneven ride height, poor handling, and reduced ground clearance.
  • Solution: Replace the air suspension struts.
  • Estimated Cost to Fix: $2,000 - $4,000+ per strut
  • Recalls: None Found
• Rear Suspension Bushing Wear:
  • Description/Symptoms: Worn rear suspension bushings can cause excessive body roll, squeaking noises, and poor handling.
  • Solution: Replace the worn bushings.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Electrical

• Battery Drain:
  • Description/Symptoms: Electrical components or accessories can drain the battery prematurely.
  • Solution: Test and replace the faulty component or accessory.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found
• Headlight Issues:
  • Description/Symptoms: Malfunctioning headlights or taillights can reduce visibility and safety.
  • Solution: Replace faulty bulbs or components.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found

Exterior

• Bumper End Caps Cracking:
  • Description/Symptoms: The plastic bumper end caps can crack due to exposure to UV rays and temperature changes.
  • Solution: Replace the cracked end caps.
  • Estimated Cost to Fix: $100 - $200+
  • Recalls: None Found
• Rust on Frame:
  • Description/Symptoms: The frame can develop rust in certain areas, especially if the vehicle is used in corrosive environments.
  • Solution: Apply rustproofing treatment or repair rusted areas.
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found

Interior

• Dashboard Cracking:
  • Description/Symptoms: The plastic dashboard can develop cracks over time, especially in hot climates.
  • Solution: Replace or repair the cracked dashboard.
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found
• Seat Belt Buckle Issues:
  • Description/Symptoms: Seat belt buckles can become sticky or difficult to operate.
  • Solution: Replace the seat belt buckles.
  • Estimated Cost to Fix: $100 - $200+
  • Recalls: None Found

Summary

While the Lexus LX470 is generally a reliable vehicle, it is not immune to potential issues. The most common problems reported by owners include intake manifold runner valve issues, transmission fluid leaks, and front air suspension failure. These issues can range from minor to severe in terms of cost and complexity to fix.