When does a timing chain need to be replaced?
The timing chain normally needs to be replaced between 80,000 and 120,000 miles unless there is a specific problem. Issues with the chain are common in higher mileage vehicles. If driving an older vehicle, or one with close to 100,000 miles, it is recommended to look for symptoms of the timing chain going bad or failing.
Signs a timing chain needs to be replaced include:
- Later model VVT applications will generate engine codes and check engine lights prior to engine rattle
- Older, pre-VVT applications will generate engine rattle