What Happens When the Knock Sensor Fails?
1 Answers
The failure of a knock sensor can lead to a decrease in engine power, and the engine may produce knocking sounds, which can damage the engine pistons and cylinder block. Below are detailed explanations regarding the knock sensor: 1. Introduction: The knock sensor is installed in the middle of the engine block. Taking a four-cylinder engine as an example, it is installed between cylinders 2 and 3, or one between cylinders 1 and 2, and another between cylinders 3 and 4. Its function is to measure the engine's vibration level and adjust the ignition timing when engine knocking occurs. 2. Precautions: If the knock sensor malfunctions, the engine warning light on the dashboard will illuminate. At this point, it is necessary to promptly visit a professional repair facility or a 4S shop for inspection. The fault code can be read using an OBD diagnostic tool, followed by the replacement of the knock sensor. If repairs are delayed for an extended period, it may result in irreversible damage to the engine.