What should be done if an engine emits a knocking sound?

When an engine emits a knocking sound, the appropriate course of action is to inspect for potential issues, such as low oil levels. Knocking sounds can often be attributed to insufficient lubrication, which can lead to increased friction and potential damage if not addressed.

By checking the oil level, the technician can determine if the engine is receiving adequate lubrication. If the oil level is low, replenishing it might resolve the knocking sound and prevent further engine damage. Additionally, the inspection process can include looking for other underlying causes, such as worn bearings, loose components, or issues with the fuel or ignition system—all of which can contribute to knocking noises.

This problem should not be ignored, as doing so could lead to more serious engine problems and costly repairs down the line. Unchecked knocking sounds can indicate significant internal issues, making early detection and intervention critical in maintaining engine health.