What is the normal water temperature when driving?

1 Answers
Phil
07/29/25 10:31am
The normal water temperature while driving is around 90 degrees. The engine temperature is usually sensed by the water temperature sensor, and the normal engine temperature is linked to the water temperature. Typically, the optimal engine water temperature is around 90 degrees. The engine temperature varies under different operating conditions: in a cold state, the temperature is around 85 degrees, while in a hot state, the water temperature can exceed 100 degrees. Reasons for high water temperature in a car: 1. Insufficient coolant; 2. Radiator leakage; 3. Cooling fan malfunction; 4. Thermostat failure; 5. Water pump failure. Reasons for low water temperature: 1. Damaged thermostat preventing it from closing; 2. Cooling fan malfunction causing it to run continuously.
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