Timing belt replacement is a critical part of scheduled vehicle maintenance. Most vehicles require timing belt replacement between 60,000 and 100,000 miles, though some are equipped with timing chains instead. While timing chains are generally more durable, they can still stretch or break over time, potentially causing unusual engine noise and serious damage.
It’s essential to follow your car’s owner’s manual for the recommended timing belt replacement schedule. Ignoring this service can result in sudden engine failure—if the belt breaks, the pistons and valves can collide, leading to bent valves, damaged pistons, and major engine damage.
Symptoms of a worn or failing timing belt may include ticking or rattling noises from the engine, engine misfires, or excessive exhaust smoke. If you notice any of these issues, have your timing belt inspected right away to avoid costly repairs.