Why Does the Car Radiator Keep Boiling Over?

1 Answers
LeOwen
07/30/25 10:38am
Here are the specific reasons why a car radiator keeps boiling over: 1. Insufficient coolant: Prolonged water circulation can cause gradual loss of coolant in the engine's cooling system, leading to low coolant levels in the radiator. Failure to promptly check and replenish the coolant can easily result in radiator boil-over. 2. Radiator leakage: Broken or poorly connected radiator hoses can cause leaks, severely obstructing water circulation and triggering radiator boil-over. 3. Cooling fan malfunction: Damaged cooling fans, electrical shorts preventing fan operation, or slow fan rotation can prevent timely engine heat dissipation, causing boil-over.
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