What's wrong with the car thermometer not rising?

Generally, the slow rise of water temperature in the Pacific car network is caused by the damage of the thermostat, which can not be turned off, or the cooling fan can not rotate normally. When the thermostat can't close the valve, the coolant is always circulating in a big way, and the water temperature in the car will drop rapidly. If the cooling fan fails and keeps turning, it will also lead to low water temperature in the car.

The way to deal with the low water temperature of the car is to check whether there is any problem with the radiator, such as whether the blinds are blocked, whether the fan blades are deformed, and whether the water temperature sensor and the circuit are short-circuited. You can take the thermostat apart for inspection and put it in water with different temperatures to observe the opening of the thermostat. If it cannot be opened and closed normally, replace the thermostat.

The thermostat is a component that automatically acts as a valve according to the engine water temperature. It is generally installed at the outlet of radiator and the inlet of water pump to control the circulation of coolant in cooling system, whether it is large circulation or small circulation. Large circulation refers to the flow path of coolant when the thermostat is opened. Small circulation refers to the route of cooling flow when the thermostat is not opened. If the water temperature is low, it may be that the thermostat has been open and the coolant has been circulating in a big way, which leads to the decrease of water temperature.

The water temperature of the car is low and the cooling fan is broken. For the electronic fan, the circuit fault causes the electronic fan to rotate normally; For the silicone oil fan, the damage of the silicone oil clutch will also cause the fan not to rotate normally. These faults will cause the phenomenon of low water temperature.

The temperature inside the car is not as low as possible, nor is it as high as possible. Need to be controlled within a certain range. The normal temperature is 90℃, which is located in the middle of the water thermometer. After the vehicle is started, the temperature of antifreeze rises rapidly. After the pointer reaches the middle position, the temperature of the heat exchange balance antifreeze will not rise any more, so it is better to start it when the temperature reaches the middle position, which is one of the reasons why the vehicle should be warmed up before starting.