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The Lexus GX470 is equipped with a timing belt that needs regular maintenance, typically requiring replacement every 60,000 to 100,000 miles. Signs of a failing timing belt include a noticeable ticking sound from the engine, difficulty starting the engine, engine misfiring, or oil leakage from the front of the motor. As a failed belt can lead to significant engine damage, it's crucial to address the issue promptly if you suspect a problem. Plan to budget around $1,000 for a timing belt replacement on your GX470, with parts costing about $400 and the remainder covering labor costs.
The Lexus GX470 comes with a timing belt instead of a timing chain.