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2003 LEXUS GX
Vehicle Summary
The 2003 Lexus GX 470 is a robust SUV built by Toyota, featuring a powerful 4.7-liter V8 engine with a horsepower range between 227 and 284. It employs a Dual Overhead Cam (DOHC) design and uses Sequential Fuel Injection, running on gasoline. Designed as a 4WD, it accommodates versatile terrain handling, making it an ideal choice for both rugged adventures and daily commutes. Manufactured in Tahara, Japan, this model is part of the UZJ120L series with a wagon body style, offering a spacious interior with five doors.
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2003 LEXUS GX
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Complete Specifications
Known Issues for This Vehicle
Oil leaks
The 2UZ-FE engine is known for developing oil leaks, particularly from the valve cover gaskets and the front crankshaft seal.
Timing belt wear
The timing belt in the 2UZ-FE engine should be replaced regularly (typically every 90,000 to 100,000 miles) to prevent engine damage.
Excessive oil consumption
Some users have reported issues with the engine consuming more oil than expected, which could be due to worn piston rings or valve seals.
Cracked exhaust manifold
The exhaust manifolds on the 2UZ-FE engine can develop cracks over time, causing exhaust leaks and noise.
Throttle body issues
Build-up in the throttle body can lead to poor idling and acceleration problems, requiring cleaning or replacement.
Cooling system problems
Radiator and water pump failures have been reported, leading to engine overheating if not addressed promptly.
Spark plug wear
The 2UZ-FE engine can suffer from premature spark plug wear, necessitating more frequent changes.
Fuel injector failures
Fuel injectors can become clogged or fail, leading to poor engine performance and fuel economy.
Knock sensor failure
Knock sensors can fail, causing the engine to run inefficiently and potentially triggering the check engine light.
