How do you know your knock sensors need replacing?

You may need to replace your knock sensors if you notice symptoms such as an illuminated check engine light, decreased engine performance, or unusual knocking or pinging sounds from the engine. Additionally, if your vehicle's onboard diagnostics system indicates an error code related to the knock sensors, it's a strong sign they may be malfunctioning. Regularly monitoring your vehicle's performance and addressing any unusual behavior can help prevent further engine issues.