The thermostat in a Subaru is a component of the engine cooling system that helps regulate the engine temperature. The thermostat is a small valve that is located in between the engine and the radiator and it controls the flow of coolant through the engine block and radiator based on the temperature of the engine.
When the engine is cold, the thermostat is closed and prevents coolant from flowing through the engine block. This allows the engine to warm up faster and reach operating temperature more quickly. Once the engine reaches the designated temperature, the thermostat opens up, allowing the coolant to flow through the engine and to the radiator to cool down.
If the thermostat in a Subaru fails, it can cause the engine to overheat or run too cold, which can lead to poor performance, reduced fuel economy, and potential engine damage. Some signs of a failing thermostat include the engine running too hot or too cold, the temperature gauge fluctuating, the coolant level dropping, or steam coming from the engine compartment.
If you suspect that the thermostat in your Subaru is failing, it’s important to have it inspected and replaced by a qualified mechanic as soon as possible to avoid further damage to the engine. Replacing a thermostat typically involves draining the coolant, removing the old thermostat and gasket, installing a new thermostat and gasket, and refilling the coolant. It’s important to use the correct type of thermostat and gasket for your specific Subaru model to ensure proper operation of the cooling system.
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