What Causes the Wuling Sunshine to Overheat?

[VonDakota]

Here are the specific reasons for the Wuling Sunshine's high water temperature: 1. Insufficient coolant: Coolant leakage or low coolant levels can cause the engine water temperature to rise. In this case, check the coolant level and top it up if necessary. Recheck the level after a few days to see if it has dropped significantly, and locate any leaks if present. 2. Faulty radiator fan: When the vehicle is running at high speeds, heat cannot be effectively transferred to the antifreeze, affecting heat dissipation and causing the antifreeze temperature to rise, leading to issues like boiling over. 3. Faulty water pump: Water pump failures can include seized bearings or damaged impellers. Seized bearings are relatively rare, while damaged impellers—such as cracked impellers or impellers loosened from the pump shaft—can slow down the coolant circulation, leading to engine overheating. 4. Thermostat failure: The thermostat automatically adjusts the amount of water entering the radiator based on the coolant temperature, altering the water circulation range to regulate the cooling system's heat dissipation capacity and ensure the engine operates within the appropriate temperature range. If the thermostat fails, the car's cooling system may not engage in a full circulation cycle, resulting in elevated water temperature.