How to Bleed Air from a Car Radiator?

1 Answers
DelAustin
07/29/25 7:44pm
To bleed air from a car radiator, follow these steps: 1. Open the front hood and remove the thin hose located under the vehicle's top; 2. Start the engine and let it idle after filling the radiator halfway with water; 3. Continue adding water slowly until water flows out from the thin hose; 4. Reconnect the thin hose and fill the radiator completely with water; 5. Wait for the electric fan to turn on, then turn off the engine. Once the water temperature drops, check if more water is needed and top it up if necessary. The radiator, also known as a heat exchanger, is a key component in the car's cooling system. Its function is to dissipate heat. The coolant absorbs heat in the water jacket, flows to the radiator to release the heat, and then returns to the water jacket to complete the cycle, thereby regulating the temperature.
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