What happens if the knock sensor is damaged?

1 Answers
LaPenelope
07/29/25 6:37pm
The effects of a damaged knock sensor are: causing engine shaking, generating noise, the malfunction indicator light will illuminate, and in severe cases, it may lead to serious damage to the firmware. The reasons for knock sensor damage include: 1. Excessive wear of pistons and cylinders leading to excessive clearance; 2. Pistons installed in the wrong direction or deformed pistons; 3. Poor lubrication of cylinder walls; 4. Bent or twisted connecting rods; 5. Blocked oil passages; 6. Severe carbon buildup in the combustion chamber; 7. Excessive fuel injection advance angle; 8. Excessively fast combustion speed of the combustible mixture, causing excessively high pressure in the cylinder; 9. Cylinder gasket being too thin or excessive wear on the cylinder block top surface, resulting in an increased compression ratio of the diesel engine.
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