What are the steps for testing a thermostat?

[Rich]

Thermostat testing steps: 1. At room temperature, manually push the large valve of the thermostat to the fully open position and secure it; 2. Install the thermostat with the large valve pushed open to the fully open position onto the thermostat seat and properly fit the thermostat cover; 3. Mount the thermostat assembly onto a simple test bench to measure the water pressure at the inlet and outlet of the thermostat and the flow rate in the small circulation pipe. A thermostat is a valve that controls the flow path of coolant, functioning as an automatic temperature-regulating device, typically containing a temperature-sensing component that opens or closes the flow of air, gas, or liquid through expansion or contraction. The thermostat automatically adjusts the amount of water entering the radiator based on the temperature of the cooling water, altering the water circulation range to regulate the cooling system's heat dissipation capacity, ensuring the engine operates within an appropriate temperature range.