Most Common Car Issues
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MOST COMMON PROBLEMS
LEXUS GS 1999
The 1999 Lexus GS, manufactured by Toyota Motor Corporation in Tahara, Japan, is a luxurious 4-door sedan powered by a robust 4.0L V8 engine (1UZ-FE) producing 300 horsepower. This rear-wheel-drive (4x2) vehicle features a dual overhead cam (DOHC) valve train design and offers both front and side airbags for the 1st-row occupants. With a gross vehicle weight rating of 6,000 lbs or less, it combines performance and safety in a refined package.
Spec:
Engine Brake (hp) From
300
Engine Brake (hp) To
300
Engine Configuration
V-Shaped
Engine Manufacturer
Toyota
Engine Model
1UZ-FE
Engine Number of Cylinders
8
Problems:
Oil leaks
The 1UZ-FE engine is known to develop oil leaks over time, often from the valve cover gaskets and front crankshaft seal.
Timing belt wear
This engine uses a timing belt, which should be replaced every 90,000 to 100,000 miles to prevent potential engine damage.
Ignition coil failure
The 1UZ-FE engine can experience issues with ignition coils, leading to misfires and poor engine performance.
Overheating
Some owners report problems with the cooling system, including radiator leaks and failing water pumps, which can cause the engine to overheat.
Idle control valve failure
The idle control valve can fail, leading to erratic idling or stalling, especially in older models.
Fuel injector problems
Fuel injectors may become clogged or fail, resulting in poor fuel economy and engine performance issues.
Vacuum leaks
Vacuum hoses and gaskets may deteriorate over time, leading to vacuum leaks that can cause rough idling and poor acceleration.