What Causes High Radiator Temperature?

[LaRobert]

The reasons for high radiator temperature are: 1. Coolant leakage or insufficient coolant; 2. Malfunctioning cooling fan, where heat generated during high-speed operation cannot be effectively transferred to the antifreeze, affecting heat dissipation and subsequently causing the antifreeze temperature to rise, leading to issues like overheating; 3. Damaged impeller, commonly seen as impeller cracking or detachment from the pump shaft, resulting in slower coolant circulation and increased risk of engine overheating. The car's water temperature reflects the working condition of the cooling system. The engine must operate within an appropriate high-temperature range. Generally, when the engine coolant temperature is around 90 degrees Celsius, the engine reaches its optimal operating state. At this temperature, the combustion chamber is hot enough to fully vaporize the fuel, allowing for better fuel combustion and reduced gas emissions.