Timing chain/sprockets may need replacement due to wear and problems with VVTi on Toyota Corolla

Occasionally, the timing chain and sprockets need replacement due to premature wear and problems with the variable valve timing system (VVTi).

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Average mileage: 87,450 (53,000–121,900)
Engine affected: 1.8L 4 Cylinder
2 model years affected: 2000, 2009
4 people reported this problem
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problem details
2000 Toyota Corolla 121,900 mi,
Timing chain worn out. Noise