How does the thermostat know when to open or close? It features a unique type of wax that acts as an expanding agent. When the heat reaches a specific temperature, the agent expands, which opens the valve.
Let us now look at a few of the most common signs that suggest your thermostat needs attention. This is precisely how it works for your car too. If the thermostat is not functioning correctly, the engine has no way to cool itself down. One of the more obvious signs that something inside your cooling system is malfunctioning is a drop in fuel economy. As one of the primary devices in charge of controlling the temp inside the engine, if the thermostat is not working, the gauge will end up outside the range it should be.
If the thermostat is stuck in the open position, the coolant will continually flow. This can hinder the engine from reaching its optimal operating temp, reducing things like engine power and fuel economy. This happens when the thermostat gets stuck closed, not allowing the hot coolant to cool down in the radiator. While many things can cause an engine to overheat, a faulty thermostat is one of the first things you should check.
Another temperature-related symptom is fluctuations in the gauge. If you notice it going from hot to cold or vice-versa frequently, it may be due to a faulty thermostat. This can confuse the system and cause it to display incorrect readings. Another sign that your thermostat is malfunctioning is if you see orange or green puddles of liquid under your car. Therefore, it requires one system to keep the engine temperature cool and stable.
One of the components in this system is known as thermostat. What are the functions of the thermostat and how does it work on cars? Read this down below. The thermostat is one of the important components in the car cooling system, its main function is to regulate the circulation of engine cooling from the radiator to prevent overheating of the engine.
While the engine cooling system functions so that the temperature inside the engine remains at an ideal condition. The thermostat is located inside the water line that goes from the engine to the radiator.
The ideal temperature conditions for the engine are in the range of degrees Celsius, because at this temperature the combustion process in the engine will be optimal, hence engine power works at its best and fuel consumption is efficient.
Previously it was explained that the main function of the thermostat is to keep the engine temperature at the ideal point. How the thermostat works will follow the performance of other engine cooling components. First, the water pump lets water fall to the engine via the water jacket. At this stage the water will flow around the engine to capture the heat in the engine.
Then the water will come out through the hose and then enter the top of the radiator. In this process, the engine temperature will decrease because it is carried away by the cooling water contained in the radiator. Follow Us on:. Functions of the Thermostat Valve in a Car A good car can serve you faithfully for many years.
What does the thermostat valve do? Stuck Valve The most common issue a thermostat valve can have, which will cause it to cease functioning, is it it becomes stuck in the open or closed position. This will prevent any spillages when testing. Removal — Remove the upper radiator hose. This will then allow you to remove the thermostat housing and finally the thermostat itself.
When removing the thermostat, write down the temperature that is stamped on it. Testing — Fill a pot with cold water and insert a thermometer. Add the thermostat and place the pot on your stove. Keep your eye on the thermometer. Once the temperature reaches the number that you recorded, it should start to open.
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