How Long Does It Take for an Overheated Engine to Cause Cylinder Scoring?

1 Answers
DelCora
07/25/25 9:09am
Generally, if the actual water temperature exceeds the permissible range of the vehicle and continues to be driven, the car may stall or experience cylinder scoring within one or two kilometers. In severe cases, the engine may even be completely damaged. High water temperature can only be tolerated for a short period; prolonged exposure can cause significant harm to the engine. The specific reasons for high engine temperature are as follows: Water Pump Failure: Coolant circulates through the water pump. If the water pump is damaged, the coolant essentially loses its function, and the heat generated by engine combustion cannot be dissipated. Insufficient Coolant: It is common knowledge among car owners that insufficient coolant leads to increased water temperature. However, using water or substandard, low-quality coolant as a cooling medium can also cause the engine to overheat. Thermostat Failure: When the thermostat is damaged or stuck, the engine only has a minimal coolant flow, and the radiator cannot effectively dissipate heat. This results in low cooling efficiency, leading to high engine temperature.
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