At what temperature does the car's cooling fan start to operate?
2 Answers
The car engine's cooling fan typically starts to operate when the water temperature reaches around 90 degrees Celsius. Below are the maintenance methods for the car engine fan: 1. Environment: The car's radiator should not come into contact with any acidic, alkaline, or corrosive substances to avoid unnecessary damage. 2. Water quality: When maintaining the car's radiator, it is recommended to use soft water, which has better quality and can provide a more effective cooling effect in the radiator, while also preventing scale buildup that could affect heat dissipation due to water quality issues. 3. Antifreeze: When using antifreeze, to prevent corrosion to the radiator, it is essential to choose a high-quality, non-corrosive antifreeze, which can fundamentally protect the car's radiator.
I found that the temperature at which the car fan activates is usually between 90 and 100 degrees, depending on the vehicle model and personal settings. In my experience, when the temperature gauge needle reaches around 90 degrees while driving, the fan starts buzzing, especially at idle or low speeds when there's insufficient airflow. The sensor continuously monitors the engine temperature, and once it reaches the preset threshold, the control system activates the fan to assist with cooling. If the water temperature is too high, say over 100 degrees, and the fan still doesn't kick in, it could be due to a faulty sensor, a blown fuse, or loose wiring—prompt inspection is necessary to prevent engine damage from overheating. This is especially important during hot summer days. Regularly checking the coolant level and fan system can help prevent unexpected issues.
