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What Causes the Water Temperature Warning Light on the Dashboard?

1 Answers

VonDerek

07/29/25 2:31pm

Water Temperature Warning Light on the dashboard indicates that the car's radiator temperature is too high. There are several reasons for the high water temperature: 1. Insufficient coolant: The owner can check if there is any leakage in the radiator causing insufficient coolant. If there is no leakage, coolant can be added promptly. If there is leakage, the radiator needs to be replaced. 2. Thermostat failure: When the thermostat is damaged, the water pipes do not operate in the normal large and small circulation cycle, which can also lead to excessive radiator temperature. 3. Problems with the cooling fan: If the car's cooling fan does not rotate, the radiator's temperature cannot dissipate, naturally causing the coolant temperature to rise, leading to a "boiling" phenomenon. 4. Circulation water pump failure: Common issues with the circulation water pump include cracked impellers or detachment from the pump shaft, preventing the cooling system from circulating normally and resulting in excessive water temperature. Note: When the water temperature warning light comes on, it is best to find a place to stop the car promptly. Do not turn off the engine directly; first, check if the radiator's coolant is insufficient. If it is another fault, wait for the water temperature to drop before heading to the nearest repair shop to have professional technicians handle the faulty components.

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