At what temperature does the Haval H9's cooling fan activate?
2 Answers
Generally, the engine radiator cooling fan activates at around 90 degrees Celsius. Specific details are as follows: Engine Radiator Cooling Fan: Typically, the engine radiator cooling fan starts operating at approximately 90 degrees Celsius. When the temperature reaches around 105 degrees, the fan switches to high-speed mode. The radiator fan automatically activates only after the vehicle's engine has been running for a certain period, causing the temperature to rise and the engine coolant temperature to increase. Methods to Address Overheating Engine Coolant: If overheating is caused by insufficient coolant, you need to add water. However, to prevent engine damage, do not add water immediately. Usually, you should first open the car's hood, then remove the engine cover to allow ventilation and heat dissipation. Only add water after the coolant temperature has dropped. If the water pump malfunctions causing overheating, it might be due to seized bearings or damaged impeller blades. While bearing seizure is less likely, replacing a broken impeller should suffice. If you notice the engine overheating while the electric fan isn't running, this indicates either a blown fuse or a faulty thermostat switch. In this case, remember not to turn off the engine immediately. Instead, open the hood first and use cool water to rapidly cool down the radiator. Most importantly, do not attempt to open the radiator cap immediately, as escaping hot steam could cause severe burns.
I remember when driving the Haval H9, the water temperature was usually the key indicator for the fan to start. Generally, the H9's fan begins to turn on around 92 to 95 degrees Celsius, which is to dissipate heat and prevent the engine from overheating. During normal driving, maintaining a water temperature between 80 and 100 degrees is considered safe; if it remains consistently high without any response, it might indicate insufficient coolant or a system malfunction. I once encountered a situation during a long summer trip where the water temperature approached 95 degrees, and the fan roared loudly—it worked in time to prevent a major issue. I recommend everyone to regularly check the cooling system and add original coolant. If the fan frequently engages, visit a 4S store promptly to prevent any accidents.
