The various models and yearly changes to this series of cars make an initial inspection worthwhile after checking a repair information source. Drain the coolant and remove the fan shrouds. The job is easier if it is on a hoist and the lower engine covers are removed. Ensure that every step is done correctly, and the proper tools and procedures are used to prevent comebacks, driveability complaints or difficulties in completing this service.īecause of the interference possibilities, I suggest removing the ignition key and hiding it so the engine does not get cranked by mistake while the belt is off. Cars that are driven primarily in hot, dry climates will probably benefit from earlier replacement than those living in more moderate conditions.ĭue to the possibility of engine damage if the belt breaks or jumps time, I would not recommend waiting beyond six years or 90,000 miles, which is the OE-recommended interval for this engine.Ī quick scan through service bulletins, tech assistance requests and first-hand experience with this repair leads me to advise that extra care be taken on this repair. My advice is to look closely at the accessory belts, note any cracking or evidence of replacement, and then factor in the use of the car and its maintenance history.
Depending on which tech manual or tech assistance site you access, you can get widely varying mileage and time suggestions. Recommended replacement intervals for timing belts are all over the map these days. There are also differences between models on this platform that can impact the way certain components are removed. For these reasons, I would recommend that you read through this article and the service manual description for this job very carefully before starting this repair. Due to the complexities of the valve timing and internal engine clearances, these engines will most likely bend valves if the belt fails, or if the belt is installed incorrectly. Nothing can spoil the resale value of a high-dollar car more than an engine failure.
The focus of this article will be the timing belt replacement on a 2001 Lexus GS 300 with the in-line six-cylinder 2JZ-GE engine with VVT-i (Toyota’s variable valve timing). Since these cars are somewhat rare (you have to look to spot one on the road), many people would mistake them for their luxury “fluff mobile” cousins in the LS class. Later models have gone to V6 and V8 powerplants. Initially, these cars were powered by an in-line six-cylinder from the Toyota Supra line. The GS and more recently the IS platforms are high-quality, performance luxury models with a conventional front engine, rear-drive or all-wheel-drive layout.
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