Why Does the Alarm Still Sound After Topping Up the Coolant?

[MacMaddox]

Coolant The alarm still sounding after topping up the coolant is due to a malfunctioning coolant level sensor or poor wiring connections. Here is a detailed introduction to the function of the coolant temperature sensor: 1. Detecting Water Temperature: When the vehicle experiences issues such as excessive load, lack of water, incorrect ignition timing, non-rotating fan, or when prolonged exposure to the sun in summer causes the coolant temperature to rise, leading to an increase in engine temperature, the driver can be alerted through this sensor. 2. Preventing Malfunctions: The coolant temperature gauge in the instrument panel is designed to monitor the engine coolant temperature and display it on the dashboard, allowing the driver to visually observe the temperature of the engine coolant under any operating condition and take appropriate action promptly. Additionally, an alarm will sound during high temperatures to prevent the car's radiator from overheating.