Parts for your 2017 Subaru Forester-Thermostat housing

Thermostat Housing on the 2017 Subaru Forester: What It Does and How to Look After It

The 2017 Subaru Forester certainly benefits from having a thermostat housing as part of its cooling system. This component, while often overlooked, plays a vital role in keeping the engine running at just the right temperature. If you're a Forester owner who enjoys understanding what goes on under the bonnet, knowing about the thermostat housing and how to care for it is worth your time. Let's dive into what the thermostat housing is, why it's important, and tips on how to keep it in tip-top shape during servicing.

The thermostat housing is a key part of the cooling system that essentially acts as the mounting location for the thermostat itself. The thermostat is a small valve that controls the flow of coolant between the engine and the radiator. It ensures that the engine warms up properly before allowing coolant to circulate and keeps the temperature steady once the engine is at optimal running heat. The housing surrounds and protects this thermostat valve while forming a tight seal to prevent any coolant leaks.

In the 2017 Subaru Forester, the thermostat housing is typically located at the engine end of one of the main coolant hoses, often on the cylinder head or near the intake manifold. It is usually made from durable materials like aluminium or reinforced plastic, which are chosen for their ability to handle heat and prevent corrosion over time. The housing also serves as the connection point for coolant hoses, making it a crucial hub in the engine's cooling loop.

Why is the thermostat housing so important? If the thermostat or its housing fails, it could lead to engine overheating or inefficient heating. Imagine driving around without your engine warming up fully, this would cause poor fuel efficiency, increased emissions, and additional wear and tear. On the flip side, if the thermostat gets stuck closed or the housing leaks, the coolant cannot flow properly, risking severe overheating and costly repairs. So, the thermostat housing doesn't just protect the thermostat, it ensures the entire cooling system works as designed.

Replacing or maintaining the thermostat housing during servicing should not be overlooked for anyone wanting to keep their 2017 Subaru Forester running smoothly. Over time, the housing can develop cracks or the gasket seals may harden, leading to coolant leaks. In some cases, corrosion inside the housing could interfere with the thermostat's operation. Servicing the thermostat housing, either by inspection or replacement, can prevent unexpected breakdowns and extend the lifespan of the vehicle's cooling system.

When servicing the thermostat housing on a 2017 Forester, a mechanic typically starts by draining some coolant to avoid spills, then removes hoses connected to the housing. The housing itself is unbolted from the engine, giving access to the thermostat inside. This is a good opportunity to inspect both the thermostat and the housing for any signs of wear or damage. Replacing the thermostat seal or gasket at the same time is common practice to ensure a watertight seal when everything goes back together.

Choosing a quality replacement thermostat housing is important. Original equipment manufacturer parts or high-quality aftermarket equivalents are recommended to withstand the rigours of constant temperature changes and pressure. Also, don't forget to refill the cooling system with the correct Subaru-approved coolant and bleed any air pockets to avoid overheating issues after installation.

For those who prefer DIY maintenance, some simple tips can help keep this component healthy. Regularly checking under the bonnet for any signs of coolant leaks, unusual smells, or coolant level drops can act as early warnings of thermostat housing issues. Also, following the recommended service intervals for coolant flushes helps avoid corrosion build-up inside the housing and the entire cooling system.

If your 2017 Subaru Forester is used in harsher environments, such as dusty off-road tracks or extreme temperature conditions, keeping an eye on the thermostat housing becomes even more vital. Different driving conditions can accelerate wear on the cooling system components, making routine checks and maintenance all the more necessary.

Overall, the thermostat housing in a 2017 Subaru Forester is a small but critical component that helps safeguard your engine's performance and longevity. Keeping it in great condition through regular inspection, cleaning, and timely replacement ensures that the cooling system works effectively. Whether you're a regular at the workshop or like to tinker under the bonnet yourself, giving some love to the thermostat housing pays off in reliable, stress-free drives for years to come.