Reasons for Rapid Rise in Car Engine Temperature

[DiReagan]

Here are the specific reasons for rapid engine temperature rise: 1. Insufficient coolant: Coolant leakage or low coolant level will cause engine temperature to rise. In this case, check the coolant level and top up if necessary. Recheck after a few days to see if the level drops significantly, and locate any leaks if present. 2. Cooling fan malfunction: During high-speed operation, heat cannot be effectively transferred to the antifreeze, affecting heat dissipation and causing antifreeze temperature to rise, potentially leading to boiling issues. 3. Water pump failure: Common pump failures include seized bearings or damaged impellers. While bearing seizure is rare, impeller damage (such as cracks or detachment from the pump shaft) can slow coolant circulation, easily causing engine overheating. 4. Thermostat malfunction: The thermostat automatically adjusts the amount of water entering the radiator based on coolant temperature, altering the circulation range to regulate the cooling system's capacity and maintain proper engine operating temperature. A faulty thermostat may prevent the cooling system from entering full circulation mode, resulting in elevated water temperature.