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The 2014 Buick LaCrosse comes with a timing chain for the engine, which is a better option compared to a timing belt as it typically lasts longer. Replacing a timing belt is often a costly service requirement, but with a timing chain, you won't have to worry about changing it. Timing belts usually need replacement every 60,000 to 100,000 miles, while a timing chain can last over 300,000 miles. I suggest inspecting your timing chain annually to ensure it remains secure and undamaged.
The 2014 Buick LaCrosse is equipped with a timing chain for both the 2.4L and 3.6L engines on all trim levels.