How to Thoroughly Clean a Car Radiator?

1 Answers
OJoseph
07/30/25 8:07am
The steps to thoroughly clean a car radiator are: 1. Park the vehicle and turn off the engine. After the coolant temperature drops, open the expansion tank and add radiator cleaner; 2. Start the engine and let it idle for 5 to 10 minutes after the cooling fan operates; 3. Turn off the engine and remove the front bumper of the vehicle; 4. Ensure the coolant has completely cooled, then drain the radiator cleaner along with the coolant, and finally replace it with new engine coolant. The car radiator, also known as the heat exchanger, is a key component in the vehicle'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, then returns to the water jacket in a continuous cycle.
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