What Causes a Car to Overheat?

1 Answers
BrookeLee
07/28/25 5:37pm
The causes of car overheating: 1. Insufficient engine coolant; 2. Water pump failure, worn or loose drive belt; 3. Thermostat main valve fails to open or opens too late; 4. Louvers cannot fully open; 5. Dirty, damaged radiator fins or clogged radiator cooling tubes; 6. Scale buildup in the water jacket and distribution pipes. If the engine suddenly overheats during operation, it may be due to a broken fan drive belt, the water pump shaft and impeller disengaging, leaks in the cooling system (such as aging or ruptured hoses), or the thermostat main valve falling off. Generally, there are many reasons for engine overheating, and it is recommended that car owners visit a repair shop for inspection and maintenance. Regardless of the cause, overheating can affect driving safety.
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