What Causes the Car's Water Temperature to Be Too High?

[Lois]

It may be due to sand holes or perforations in the water jacket of the car's cylinder block. Below is some extended information about the car's water temperature gauge: 1. Structure of the water temperature gauge: Its sensor is a thermistor-type sensor, fixed with threads on the engine's cooling water passage. The thermistor determines the magnitude of the current flowing through the coil winding of the water temperature gauge, thereby driving the pointer on the gauge to swing. 2. Introduction to the water temperature gauge: The water temperature gauge is an instrument that displays the temperature of the cooling water, measured in ℃ (degrees Celsius). In the past, tap water was used as the cooling water for car engines, but now many car engine cooling systems use specialized coolant, hence it is also referred to as the coolant temperature gauge. The water temperature gauge can also be indicated by a warning light; when the water temperature warning light is on, it indicates that the water temperature is too high.