Where is the Buick Regal Water Temperature Sensor Located?

[EdwardMarie]

The water temperature sensor is located at the engine compensation tank. More information about the water temperature sensor is as follows: 1. Function: The water temperature sensor is involved in the full working condition correction of the engine and controls the operation of the heating fan. It is mainly used to detect the temperature at the engine's water outlet. Most water temperature sensors are negative temperature coefficient thermistors, meaning the higher the water temperature, the lower the sensor's resistance. 2. Circuit: The water temperature sensor uses a voltage divider circuit, which includes two resistors in series. The ECU determines the water temperature by detecting the voltage drop across the thermistor. The sensor has two terminals: ground and signal. The signal voltage varies between 0-5V.