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2007 Lexus GX470

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By Research the Car 3 min read

2007 Lexus GX470

Overview

The 2007 Lexus GX470 is a luxury mid-size SUV known for its robust construction and off-road capability, largely due to its shared platform with the Toyota Land Cruiser Prado. It is powered by a potent 4.7L V8 engine, which, while generally reliable, can exhibit specific issues as the vehicle ages. The GX470’s body-on-frame design contributes to its durability, but certain components, particularly those related to its advanced suspension system, may require attention. Overall, the GX470 is considered a dependable vehicle, but like any SUV of its age, potential buyers should be aware of common problem areas that can arise from mileage and time.

Engine

4.7L V8 (2UZ-FE)

Timing Belt Replacement

  • Symptoms: While not a failure, this is a critical maintenance item. Neglecting it can lead to catastrophic engine damage.
  • Solution: Replace timing belt, tensioners, and water pump at recommended intervals (typically 90,000 miles).
  • Cost: $800 - $1500

Oil Leaks

  • Symptoms: Visible oil drips, low oil level, burning oil smell.
  • Solution: Replace leaking seals and gaskets (e.g., valve cover gaskets, oil pan gasket).
  • Cost: $300 - $800

Variable Valve Timing (VVT-i) Actuator Failure

  • Symptoms: Rattling noise on startup, check engine light, rough idle.
  • Solution: Replace VVT-i actuators and associated seals.
  • Cost: $600 - $1200

Transmission

5-Speed Automatic (A750F)

No widespread issues reported.

  • Symptoms: No widespread issues reported.
  • Solution: No widespread issues reported.
  • Cost: No widespread issues reported.

Suspension

Kinetic Dynamic Suspension System (KDSS)

Hydraulic Leaks

  • Symptoms: Leaning to one side, stiff ride, loss of hydraulic fluid.
  • Solution: Replace leaking KDSS lines or seals. Sometimes requires replacement of the entire KDSS actuator.
  • Cost: $500 - $1500

Actuator Failure

  • Symptoms: Warning lights on the dash, uneven ride height, loss of suspension articulation.
  • Solution: Replace the KDSS actuator unit.
  • Cost: $800 - $1800

Standard Chassis

No widespread issues reported.

  • Symptoms: No widespread issues reported.
  • Solution: No widespread issues reported.
  • Cost: No widespread issues reported.

Electrical

Body Control Module (BCM)

Intermittent Malfunctions

  • Symptoms: Various electrical gremlins, such as power windows not working, interior lights acting erratically, or dashboard warning lights illuminating without cause.
  • Solution: Diagnosis and potential reprogramming or replacement of the BCM.
  • Cost: $500 - $1200

Alternator

Failure

  • Symptoms: Dimming headlights, battery warning light, difficulty starting, dead battery.
  • Solution: Replace the alternator.
  • Cost: $400 - $700

Exterior

Body Panels & Paint

No widespread issues reported.

  • Symptoms: No widespread issues reported.
  • Solution: No widespread issues reported.
  • Cost: No widespread issues reported.

Headlights

Clouding/Yellowing

  • Symptoms: Reduced light output, poor aesthetics.
  • Solution: Restoration kits or replacement of headlight assemblies.
  • Cost: $100 - $500

Interior

Leather Upholstery

Wear and Tear

  • Symptoms: Cracking or tearing on high-contact areas like the driver’s seat bolsters.
  • Solution: Professional repair or replacement of seat covers.
  • Cost: $300 - $800

Outdated Maps/Software Glitches

  • Symptoms: Inaccurate navigation, system freezing or rebooting.
  • Solution: Software updates or replacement of the navigation unit.
  • Cost: $200 - $1000

Summary Verdict

The 2007 Lexus GX470 is a highly reliable SUV, particularly praised for its durable powertrain and robust chassis. The 4.7L V8 engine is known for its longevity, though routine maintenance like timing belt replacement is crucial. Potential weak points include the advanced KDSS suspension system, which can develop leaks or actuator issues over time, and some electrical components like the alternator or BCM may require attention on higher-mileage examples. Interior wear on leather is common but cosmetic. Overall, the GX470 offers excellent long-term value for those willing to perform necessary maintenance and address specific, albeit not widespread, issues.

Lexus, GX470
Lexus GX470 2007
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