Should you replace thermostat when flushing coolant?
The thermostat can, and should, be replaced when performing other cooling system service work, such as replacing the water pump or radiator hoses, or flushing the coolant.
How often should you change coolant thermostat?
Generally, a car thermostat last ten years. But it can be different for many vehicles. Well, there are many symptoms you will notice when the life of your car’s thermostat finishes.
What happens if you dont flush coolant?
If you use only water without coolant, your hoses and pipes will eventually rust, leading to bigger problems like leaks or system malfunction. Coolant, also known as anti-freeze, protects your cooling system while aiding the water in absorbing heat from the engine.
How does the thermostat work on a Subaru Forester?
The thermostat on your Subaru Forester helps control engine temperature by allowing coolant to circulate when the engine is hot, and reducing coolant circulation when the engine is cold. This keeps the engine operating within a predetermined temperature range.
What to do if your Subaru thermostat is cold?
Instead of the “burping” they do in the video, you can burp the system by letting the engine come up to temperature. Initially, when you start the car (with the radiator cap off), the bottom radiator hose (attached to the thermostat housing) will be cold.
What causes a Subaru 2.5L engine to leak coolant?
Faulty chemistry and corrosion are a common problem on older 2.5L models, in which coolant tends to leak from the left–side cylinder. This problem has largely decreased since Subaru added ground straps, which protect the most vulnerable part of the head gasket.
What should I do if my Subaru engine wont cool down?
To prevent this from happening, have your technician inspect your vehicle and explain that the coolant sensor and thermostat are properly calibrated. Furthermore, warm up and cool down the engine to test the reliability of the thermostat and sensor, and to vent any air that might be stuck in the cooling system.