What is the reason for the thermostat valve not opening and the fan not stopping?
1 Answers
It may be that the vehicle's thermostat is installed backwards. If installed backwards, it may not open. Additionally, there could be an issue with the quality of the thermostat itself, requiring replacement of the thermostat. Below is a related introduction to the thermostat: 1. The function of the car thermostat is to remain closed when the vehicle's temperature has not yet reached the normal temperature. At this time, the engine's coolant returns to the engine via the water pump, performing a small circulation within the engine to help the engine warm up quickly. When the temperature exceeds the normal level, it opens, allowing the coolant to circulate through the entire radiator circuit for large circulation, thereby dissipating heat quickly. 2. The thermostat is an automatic temperature-regulating device, usually containing a temperature-sensitive component. It opens or closes the flow of coolant based on expansion or contraction, automatically adjusting the amount of water entering the radiator according to the temperature of the coolant. This changes the circulation range of the coolant to regulate the cooling system's heat dissipation capacity. The thermostat is generally located at the junction of the engine and the radiator hose, sometimes on the upper hose and sometimes on the lower hose. If it appears slightly oval in shape, it is inside. Some thermostats are located in the hose from the cylinder head to the radiator, with a small hose connected to the water pump nearby.
