Does the Geely Emgrand's fan not turn when the water temperature is not high?
2 Answers
This is a system composed of a temperature sensor and a control component. Since it can detect temperatures of 90 or 95 degrees, it indicates that the sensor is functioning normally. Normal water temperature: The water temperature refers to the temperature of the coolant. After the engine warms up, it typically displays 70-90 degrees as normal. When the water level in the cooling tank is low, the water temperature will rise, and at this point, water needs to be added. If the temperature gauge approaches the 'H' mark or the red danger zone, and in severe cases, the water temperature warning light comes on, it indicates that the engine coolant temperature is too high. Working principle: The sensor of the water temperature gauge is a thermistor-type sensor, fixed with threads on the engine's cooling water passage. The thermistor determines the current flowing through the coil winding of the water temperature gauge, thereby driving the pointer to swing.
I've been driving a Geely Emgrand for several years, and the fan usually doesn't run when the coolant temperature is low—this is normal design. The fan is primarily controlled by the temperature sensor and only activates when the engine coolant reaches a set value (e.g., over 90°C) to assist with cooling. If the temperature isn't high, it's good that the fan stays idle to avoid unnecessary power consumption. However, if the fan genuinely doesn't run, other factors should be considered: for instance, a faulty temperature sensor may misjudge the coolant temperature, causing the fan not to work; or the relay may be aged with poor contact; it could also be a blown fuse or a short circuit. I've seen cases where loose wiring connectors in Emgrands caused issues—I recommend starting with simple checks, like inspecting the fuse box for burn marks or reseating the sensor. If the problem persists, visit a repair shop immediately for diagnosis. Don't push the car too hard, as poor cooling can damage the engine. For routine maintenance, keep the radiator clean and check the electrical system to prevent issues proactively.
