2003 Lexus GX470
Introduction:
The 2003 Lexus GX470 is a mid-size luxury SUV powered by a 4.7L V8 engine paired with a 5-speed automatic transmission. It offers a spacious and comfortable interior, rugged off-road capabilities, and a high level of reliability. However, like any vehicle, it has certain issues that owners may encounter.
Engine
4.7L V8 Engine
- Intake manifold gasket failure: Intake manifold gasket leaks coolant, causing overheating and coolant loss. Replaced with a new gasket. $500 - $1000+
- Exhaust manifold gasket failure: Exhaust manifold gasket leaks exhaust gases, causing a burning smell and reduced engine performance. Replaced with a new gasket. $300 - $600+
- Timing belt failure: The timing belt can fail and cause severe engine damage. Replaced with a new timing belt and components. $1000 - $2000+
Transmission
5-Speed Automatic Transmission
- Transmission fluid leak: Transmission fluid leaks from various seals and gaskets. Replaced with new seals and gaskets. $200 - $500+
- Torque converter shudder: Torque converter malfunctions, causing vibrations when shifting gears. Replaced with a new torque converter. $1500 - $2500+
Suspension
- Rear air suspension failure: The air suspension system can fail, causing the vehicle to sag in the rear. Replaced with new air springs or shocks. $1000 - $2000+
Electrical
- Battery drain: Battery drains quickly when parked. Caused by faulty alternator, parasitic draw, or other electrical issues. $200 - $800+
- Ignition switch failure: Ignition switch fails to start the vehicle. Replaced with a new ignition switch. $300 - $500+
Exterior
- Tailgate latch failure: The tailgate latch can fail, preventing the tailgate from closing properly. Replaced with a new tailgate latch. $200 - $400+
Interior
- Climate control unit failure: Climate control unit malfunctions, causing erratic temperature control. Replaced with a new climate control unit. $500 - $1000+
- Navigation system failure: Navigation system malfunctions, causing navigation errors or other issues. Replaced with a new navigation system. $1000 - $2000+
Summary
The 2003 Lexus GX470 is a generally reliable vehicle, but it can experience certain issues. Engine and transmission issues are relatively rare, but can be costly to fix. Suspension issues are mostly limited to the rear air suspension system. Electrical problems are often minor and inexpensive to fix. Interior issues are typically related to electronic components. Overall, the severity and cost of the issues are manageable for most owners.