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A Stuck Thermostat Causes Engine Overheating

A car that frequently overheats is annoying. What's even worse is that solving this problem doesn't come cheap. Engine overheating can cause severe damage to your engine, radiator and many other components around them. The most common reason of overheating is a bad radiator. However, a stuck thermostat can also cause your engine to overheat.

Thermostat is an important automotive component that serves as a temperature controlled engine coolant valve. It resides in between your engine and your radiator. In the daybreak, when you turn on your engine and it is still cold, thermostat signals your engine cooling system that coolant is not needed. As you drive, the thermostat gives go signal for increased coolant current, reducing and raising the level of mixture used depending on the weather condition.

Engine overheating happens when you have a stuck thermostat. But why does that occur? When your thermostat is stuck closed, your engine is not receiving the right amount of antifreeze and water every time it is required. If this happens, engine will start to heat and overheat.

When you encounter engine overheating caused by a stuck thermostat, switch off the airconditioner and put the heat on maximum blast. By doing this, engine coolant will be able to run through the heater core and be cooled by the blower. This troubleshooting method can slightly decrease the engine coolant temperature to keep you going.

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