2004 Lexus LX470

The 2004 Lexus LX470 is a luxury SUV known for its off-road capability, reliability, and comfortable ride. It only came with one engine option, the 4.7L 2UZ-FE V8, producing 235 horsepower and 320 lb-ft of torque. It was paired with a 5-speed automatic transmission. Owners often praise its build quality, durability, and smooth ride, both on and off the road. Common dislikes include its relatively poor fuel economy and aging technology. This information outlines the common problems reported by owners, categorized by vehicle system, to aid in informed purchasing decisions.

Engine

4.7L 2UZ-FE V8

• Valve Cover Gasket Leaks
  • Description/Symptoms: Oil leaking onto the exhaust manifold, causing a burning smell. Visible oil around the valve covers.
  • Solution: Replace the valve cover gaskets.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found
• Exhaust Manifold Cracks
  • Description/Symptoms: Ticking noise, especially upon cold start, diminishing as the engine warms up. Possible exhaust leak smell.
  • Solution: Replace the cracked exhaust manifold.
  • Estimated Cost to Fix: $500 - $1000+
  • Recalls: None Found
• Starter Failure
  • Description/Symptoms: Clicking sound when turning the key, engine not cranking.
  • Solution: Replace the starter motor.
  • Estimated Cost to Fix: $300 - $600
  • Recalls: None Found

Transmission

A750F 5-Speed Automatic

• Harsh Shifting
  • Description/Symptoms: Hard or jerky shifts between gears, especially 1st to 2nd or 2nd to 3rd.
  • Solution: Perform a transmission fluid flush and filter replacement. In severe cases, valve body repair or replacement may be necessary.
  • Estimated Cost to Fix: $150 - $300 for fluid flush; $800 - $1500+ for valve body work
  • Recalls: None Found
• Torque Converter Shudder
  • Description/Symptoms: Shaking or vibration at low speeds, especially when the torque converter is locking up.
  • Solution: Transmission fluid flush with updated fluid, or torque converter replacement.
  • Estimated Cost to Fix: $150 - $300 for fluid flush; $800 - $1500+ for torque converter replacement
  • Recalls: None Found

Suspension

• Adjustable Height Control (AHC) System Issues
  • Description/Symptoms: Sagging suspension, uneven ride height, AHC warning lights. The system may fail to adjust properly or leak hydraulic fluid.
  • Solution: Diagnose the leak and replace leaking components such as the AHC pump, accumulators, or height sensors. Complete system flush and recalibration may be needed.
  • Estimated Cost to Fix: $500 - $2000+ depending on the specific component.
  • Recalls: None Found
• AHC Accumulator Spheres Failing
  • Description/Symptoms: Rougher than normal ride. The AHC system can become less effective at absorbing bumps.
  • Solution: Replace accumulator spheres.
  • Estimated Cost to Fix: $800 - $1200
  • Recalls: None Found

Electrical

• Navigation Screen Failure
  • Description/Symptoms: Screen goes blank, becomes dim, or displays incorrect information.
  • Solution: Repair or replacement of the navigation screen or associated components.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found
• Power Antenna Failure
  • Description/Symptoms: Antenna not extending or retracting properly.
  • Solution: Replace the power antenna motor or assembly.
  • Estimated Cost to Fix: $200 - $400
  • Recalls: None Found

Exterior

• Rust (Frame/Undercarriage)
  • Description/Symptoms: Rust formation, especially in areas with road salt exposure. Can lead to structural weakness.
  • Solution: Rust repair, undercoating, or in severe cases, frame replacement (not economically feasible in many situations).
  • Estimated Cost to Fix: $200+ for rust treatment; $1000+ for more extensive repairs.
  • Recalls: None Found

Interior

• Seat Heater Failure
  • Description/Symptoms: Seat heaters not working or working intermittently.
  • Solution: Repair or replace heating element or switch.
  • Estimated Cost to Fix: $200 - $500
  • Recalls: None Found
• Dash Cracking
  • Description/Symptoms: Cracks forming in the dashboard, especially in areas exposed to sunlight.
  • Solution: Replace the dashboard or use a dash cover.
  • Estimated Cost to Fix: $500 - $1500 for replacement; $50 - $100 for a cover.
  • Recalls: None Found

Summary

The 2004 Lexus LX470, while known for its reliability, does have some common issues that potential buyers should be aware of. The AHC system can be expensive to maintain. Engine and transmission issues are common, but can be costly to repair, especially if ignored. Rust is also a major concern. Addressing these issues early on can help prevent more significant problems down the line.