Q: Timing chain replacement on a 1999 Chevrolet Lumina

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I have a 1999 Chevrolet Lumina. It's 18-years-old but it only has 68,000 miles. GM suggested doing a timing chain at 100,000 miles, but due to its age, I'd do it earlier.

Don’t waste your time this early. Timing chains are made of metal. If it’s a rubber timing chain, then yes, you may want to change it. But the metal timing chain isn’t worth it if it’s only at 68,000 miles. Mileage is the only thing you should care about.

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