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At what temperature does the Buick Excelle's fan start working?

2 Answers

GabrielMarie

07/29/25 8:20pm

The fan starts operating at 90 degrees. Here are the specific details: Related introduction: The working principle of the electric fan is that the car's electric fan is controlled by a thermostat. When the water temperature rises to the upper limit, the thermostat turns on the power, and the fan starts working. When the water temperature drops to the lower limit, the thermostat turns off the power, and the fan stops working. Extended content: Method to determine the condition of the Buick Excelle's electric fan: Check the color of the coil at the fan motor's ventilation port for any signs of burning. If there are burn marks, it indicates that the fan motor coil has burned out and can no longer be used. Smell the fan motor for any burnt coil odor or melted plastic smell.

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JacksonRose

08/14/25 4:54pm

The Buick Excelle's cooling fan typically activates automatically when the coolant temperature reaches around 95°C, which is part of the standard cooling system design. When the engine operating temperature rises, the temperature sensor detects the heat value and triggers the fan operation to assist the radiator in rapid cooling. I've personally experienced situations during summer road trips where the coolant temperature surged, causing the fan to start humming at 94°C – especially during traffic congestion or when running the AC under heavy load, the fan activates more frequently. If the temperature exceeds 100°C without fan engagement, this may indicate sensor failure, fan motor issues, or a stuck relay. In such cases, never push the vehicle – immediately pull over and seek professional inspection to prevent engine overheating damage. Normally, monitor the temperature gauge; maintaining 80-90°C during regular driving is acceptable, with occasional fan activation being part of the standard protective mechanism.

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