Why does the car water temperature warning light come on?
2 Answers
The reasons why the car water temperature warning light comes on are: 1. Insufficient antifreeze in the coolant reservoir; 2. Damage to the coolant level sensor or signal interruption due to aging of the engine wiring harness. The normal operating temperature for a car's water temperature is between 80 to 90 degrees Celsius. Consequences of high car water temperature include: 1. Accelerated engine wear and reduced lubrication effectiveness of the oil; 2. Risk of the car radiator bursting due to excessive heat; 3. Increased temperature of the engine block, which over time can lead to deformation or damage to the cylinder head and cylinder block. Causes of high car water temperature are: 1. Poor engine cooling; 2. Accumulation of dirt inside and outside the radiator from prolonged use without cleaning, affecting coolant circulation and heat dissipation; 3. Damage to the fan or other cooling components.
Last time my car's temperature warning light came on was because the coolant was low. It was a hot day with traffic congestion, and the engine temperature kept rising rapidly, triggering the warning light. Later, a check revealed that the water pump also had some issues, causing slower water circulation. Additionally, the thermostat was stuck and wouldn't open, preventing the cooling system from circulating. The risk of a faulty fan can't be ignored either, such as insects clogging the radiator fins. If these minor issues aren't fixed promptly, high engine temperatures could lead to engine failure, and the repair costs would be extremely expensive. I recommend regularly checking the coolant level, at least once a month, and being extra careful before long trips. Avoid driving on rough roads too often to prevent damage, and keep the engine running steadily.
