What does 'turning off the AC to protect the engine' mean?
1 Answers
It refers to the engine's high-temperature protection, which is a normal phenomenon. Precautions to take: 1. Avoid immediately opening the cap to add water when the engine overheats: After the water in the radiator boils, there is internal pressure. If the radiator cap is opened immediately, hot water may spray out, causing burns. Therefore, drivers should never open the cap to add water right after the engine overheats. 2. Avoid turning off the engine immediately after overheating: Some drivers think of turning off the engine immediately upon noticing overheating. However, the engine overheats because the water temperature in the radiator is too high. Turning off the engine at this point can cause components to remain in an expanded state with very small clearances, leading to soft metal parts falling off or even cylinder sticking. Thus, do not turn off the engine immediately after overheating; instead, keep it idling. If the car has already stalled, immediately use the crank to turn the engine to prevent cylinder sticking. 3. Avoid splashing cold water on the engine: When the engine temperature is too high, do not splash cold water on it. Some people forget to add coolant when starting the car and, upon noticing the high temperature, pour cold water on the engine block or cylinder head to cool it down. This can have severe consequences, such as causing the engine block to crack due to sudden cooling, leading to irreparable damage.
