2007 Lexus GX470

The 2007 Lexus GX470 is a body-on-frame luxury SUV known for its off-road capability, comfortable ride, and Toyota reliability. This year model came exclusively with a 4.7L 2UZ-FE V8 engine producing 263 horsepower and 323 lb-ft of torque, paired with a 5-speed automatic transmission. Owners appreciate the GX470 for its robust build quality, smooth engine, and luxurious interior. Common complaints revolve around fuel economy, dated technology, and potential rust issues, particularly in areas with road salt.

Engine

4.7L 2UZ-FE V8

• Valve Cover Gasket Leaks
  • Description/Symptoms: Oil leaks from the valve cover gaskets, leading to a burning smell and potential oil loss.
  • Solution: Replace the valve cover gaskets.
  • Estimated Cost to Fix: $200 - $400
• Secondary Air Injection (SAI) Pump Failure
  • Description/Symptoms: Check engine light, specifically codes P0418, P0419, P2440, P2441, P2442, P2443, P2444. Loud humming noise from the pump on cold starts. Can cause the vehicle to enter limp mode.
  • Solution: Replace the SAI pump and/or valves. Bypass kits are also available as a more permanent solution.
  • Estimated Cost to Fix: $500 - $1500+
• Exhaust Manifold Cracks
  • Description/Symptoms: Ticking noise, especially noticeable on cold starts. Exhaust leak smell.
  • Solution: Replace the exhaust manifold.
  • Estimated Cost to Fix: $500 - $1200+

Transmission

A750F 5-Speed Automatic

• Torque Converter Failure
  • Description/Symptoms: Shuddering or vibration during acceleration, especially at lower speeds. Can also cause stalling.
  • Solution: Replace the torque converter. In some cases, a full transmission rebuild or replacement may be necessary.
  • Estimated Cost to Fix: $800 - $3000+

Suspension

• Air Suspension Failure (Rear)
  • Description/Symptoms: Rear of the vehicle sagging, ride height control malfunctioning, “AHC” light illuminated on the dashboard. Compressor may run continuously.
  • Solution: Replace the air springs (airbags), air suspension compressor, and/or height sensors. Conversion to coil springs is also a popular alternative.
  • Estimated Cost to Fix: $500 - $2000+ (Air suspension repair), $800 - $1500+ (Coil spring conversion)
• X-REAS (Kinetic Dynamic Suspension System) Leaks/Failure
  • Description/Symptoms: Fluid leaks from the X-REAS shocks, diminished handling performance, and increased body roll.
  • Solution: Replace the X-REAS shocks. Requires special tools and procedures to properly bleed the system.
  • Estimated Cost to Fix: $800 - $2000+

Electrical

• Navigation Screen Failure
  • Description/Symptoms: Blank screen, flickering, or unresponsive touch input on the navigation/infotainment screen.
  • Solution: Repair or replace the navigation unit. Aftermarket head units are a common alternative.
  • Estimated Cost to Fix: $300 - $1500+
• Power Window Motor Failure
  • Description/Symptoms: Window moving slowly or not at all, clicking sound from the door when attempting to operate the window.
  • Solution: Replace the power window motor.
  • Estimated Cost to Fix: $150 - $400

Exterior

• Rust Issues (Frame/Undercarriage)
  • Description/Symptoms: Rust on the frame, particularly in areas exposed to road salt. Can lead to structural damage.
  • Solution: Rust repair or frame replacement (if severe). Rust prevention treatments can help mitigate further damage.
  • Estimated Cost to Fix: $500 - $5000+ (depending on severity)

Interior

• Dashboard Cracking
  • Description/Symptoms: Cracks appearing on the dashboard surface, especially in areas exposed to sunlight.
  • Solution: Dashboard replacement or installation of a dashboard cover.
  • Estimated Cost to Fix: $500 - $2000+
• Center Console Lid Latch Failure
  • Description/Symptoms: The center console lid latch breaks, preventing the lid from closing properly.
  • Solution: Replace the center console lid latch.
  • Estimated Cost to Fix: $50 - $200

Summary

The 2007 Lexus GX470 is a generally reliable vehicle but is not without its common issues. The most significant potential issues involve the air suspension and X-REAS systems, which can be costly to repair. Rust is also a concern, especially in colder climates. Engine and transmission issues, while less common, can also be expensive to address. Overall, prospective buyers should thoroughly inspect the vehicle for these potential problems and factor in the cost of potential repairs when making a purchase decision.