What does it mean when the water temperature gauge is flashing?

[McVictoria]

When the car's water temperature light keeps flashing, it indicates either insufficient coolant or excessive temperature, prompting a warning flash or constant illumination. It is recommended to add some coolant and continue monitoring. If the warning persists after adding coolant, check the water temperature sensor. The water temperature indicator light alerts the driver to the temperature of the coolant in the engine. Some indicators use colors to display different statuses: blue indicates the coolant is too cold, red indicates it is too hot, and no light means the temperature is normal. Generally, if the water temperature light on the dashboard stays on constantly, it signifies a fault in the engine's cooling system. Common issues include: Low coolant level in the engine's cooling system, possibly due to leaks such as from the water pump, damaged pipes, or a cracked radiator. A faulty thermostat in the engine's cooling system causing the water temperature to rise excessively. If the thermostat fails to open, it restricts coolant flow within the engine, leading to overheating. Malfunctioning cooling fans in the engine's cooling system, resulting in poor heat dissipation from the coolant. This triggers the water temperature light and causes the coolant to overheat. A faulty water pump in the engine's cooling system, where the pump does not rotate smoothly, impairing coolant circulation. This also activates the water temperature light and leads to excessive coolant temperature.