What to Do When the Car Radiator Leaks?

2 Answers
ConnorLynn
09/04/25 2:45am
The solutions for a leaking car radiator are: 1. When the leak is no more than a 1mm crack or a 2mm hole, add a bottle of radiator stop-leak agent to the radiator and start the engine; 2. After opening the coolant for a major circulation for 5 to 10 minutes, any leaks in the cooling system, whether in the radiator, rubber hoses, or gaskets, will stop. After stopping the leak, there is no need to drain it, and it will not affect heat dissipation or cause blockages; 3. If no stop-leak agent is available, for minor leaks in individual cooling tubes, you can temporarily place loose tobacco strands into the radiator. The water circulation pressure will cause the tobacco strands to block the leak in the cooling tubes, providing a temporary fix.
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SophieLee
09/16/25 4:01am
That day, my car's radiator leaked, which gave me quite a scare. I was driving to work when the engine temperature gauge suddenly shot up to the red zone. Panicking, I quickly pulled over and turned off the engine. Remember, don't rush to open the hood—hot steam can cause painful burns! I waited half an hour for the car to cool down, then carefully lifted the hood with a wet cloth as a pad and found a small crack at the bottom of the radiator leaking green fluid. Luckily, I always keep some coolant on hand, so I poured some in to temporarily stop the leak. Then I drove slowly to the repair shop, where the mechanic checked it and replaced the radiator. A reminder to everyone: always keep a bottle of coolant in your car for emergencies, and regularly inspect the hoses and radiator connections, especially for older cars, as hoses can easily crack due to aging. Don't slack on regular maintenance either—check the cooling system every six months to avoid a lot of trouble.
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