What to Do When a Car Radiator Leaks?

1 Answers
VonIsabelle
07/30/25 10:46am
Solutions for a leaking car radiator: First, inspect the radiator. If the water pipe is cracked and the crack is not too large, you can try to fix it yourself. If you have a strong leak stopper, pour it into the radiator, then start the engine to circulate the coolant. The leak should stop in about ten minutes. Below are some maintenance tips for car radiators: 1. Keep the engine idling to continue dissipating heat, and open the engine hood to speed up heat dissipation. Do not attempt to continue driving if the water temperature is too high or the engine is overheating to avoid major engine damage. Do not try to open the radiator cap, as hot liquid may spray out and cause burns. Do not pour cold water onto the engine block or cylinder head, as this may cause the block to crack due to sudden cooling. 2. After some time, check if there is any leakage under the car. Wrap the radiator cap with a wet towel and slowly turn the first switch (about 1/4 turn). Once the steam pressure is released, fully open the radiator cap and check the water level and quality in the radiator, as well as whether the fan belt is abnormal. If the water level is low, slowly add water up to the maximum mark. 3. If the radiator is leaking or the fan belt is loose or broken, call a towing company and wait for rescue. If necessary, you can also drive the car to a service center at low speed after the engine has completely cooled down. Remember, do not drive at normal speed, as this may cause permanent damage to the engine.
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