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Subaru Cooling Systems: Preventative Maintenance to Avoid Overheating

August 8, 2023

Subaru Cooling Systems- Preventative Maintenance to Avoid Overheating

Keeping your Subaru's cooling system in optimal condition is vital to prevent overheating issues and ensure the longevity of your vehicle. By performing regular preventative maintenance tasks, you can safeguard your Subaru from potential overheating risks. In this article, we will explore essential maintenance steps that you can take to keep your Subaru's cooling system running smoothly.

From checking coolant levels to inspecting radiator hoses and maintaining cooling fans, we will cover all the necessary measures to help you maintain a cool and reliable Subaru. Additionally, we'll provide guidance on what to do if your Subaru does overheat while you're on the road. By following these recommendations, you can protect your engine and enjoy worry-free Subaru driving.

preventative maintenance tasks

Regularly check the coolant level

Ensure that the coolant level is between the minimum and maximum marks on the coolant reservoir. If it's low, top it up with the recommended coolant mixture.

Inspect the radiator hoses

Check the radiator hoses for any signs of wear, leaks, or cracks. Replace them if necessary, as damaged hoses can cause coolant leakage and lead to overheating.

Flush and replace coolant

Coolant can become contaminated or lose effectiveness over time. It's recommended to flush and replace the coolant at the intervals specified in your Subaru's owner's manual.

Check the radiator cap

The radiator cap helps maintain the proper pressure in the cooling system. Ensure the cap is tightly sealed and in good condition. Replace it if necessary.

Inspect the radiator fins

Check the radiator fins for any debris, dirt, or bent fins that may obstruct proper airflow. Clean the fins and straighten any bent fins carefully to ensure efficient cooling.

Inspect the thermostat

The thermostat regulates the engine's operating temperature. If it fails, it can cause overheating. Have the thermostat checked and replaced if needed according to the manufacturer's recommendations.

Maintain the cooling fans

Ensure the cooling fans are functioning correctly. Inspect the fan blades for damage and test the fan operation by letting the engine reach operating temperature and observing if the fans kick in.

Check the water pump

The water pump circulates coolant through the engine. Inspect it for any leaks, unusual noises, or signs of failure. Replace the water pump if necessary.

Keep an eye on the temperature gauge

Monitor the temperature gauge on your Subaru's instrument cluster regularly while driving. If it rises above the normal range, address the issue promptly to prevent overheating.

Maintain a clean engine bay

A clean engine bay allows for better airflow and cooling. Regularly remove debris, leaves, and dirt from the engine bay to prevent obstructions to the cooling system.

Remember to consult your Subaru owner's manual for specific maintenance intervals and recommendations tailored to your vehicle model. Additionally, it's beneficial to have your vehicle inspected by a qualified mechanic regularly to detect any potential issues and ensure proper maintenance.

If your Subaru overheats while you're on the road, here's what you can do:

Safely pull over

As soon as you notice the engine overheating, find a safe place to pull over, away from traffic. Turn on your hazard lights to alert other drivers.

Turn off the engine

Shut off the engine immediately to prevent further damage. Let it cool down for at least 15-20 minutes before attempting any other action.

Do not remove the radiator cap

Opening the radiator cap while the engine is hot can lead to steam and coolant spray, causing burns. Wait until the engine has cooled down completely before attempting to open the cap.

Check coolant level

Once the engine has cooled, check the coolant level in the radiator and coolant reservoir. If it's low, add coolant slowly to the appropriate level. Be cautious while handling the radiator cap and coolant, as they may still be hot.

Check for leaks

Inspect the hoses, radiator, and other cooling system components for any signs of leaks or damage. If you notice any leaks, avoid driving the vehicle until the issue is resolved.

Verify the radiator fans

Start the engine and observe if the radiator fans are functioning correctly. If the fans are not running, there might be an issue with the cooling fan circuit or sensors. It's best to seek professional assistance in such cases.

Seek assistance

If you're unable to identify the cause of the overheating or if the problem persists, it's advisable to contact a towing service or Subaru dealership for further assistance. They can diagnose and repair the issue safely.

Remember, driving an overheating vehicle can cause severe engine damage, so it's crucial to address the problem promptly and avoid prolonged driving until the issue is resolved.

When using Aposhian Garage, you have not only had your Subaru properly maintained, but you have also found your Subaru repair “home.”
We look forward to getting to know you and your vehicle!

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VIP Membership Club

You Get:

  • 4 Basic Lube/Oil Filters  ($200.00 value)
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*card can be used on multiple cars

  • 1 Set Of Free Wiper Blades  ($20.00 value)
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  • $10.00 Off Emission Test With On-The-Spot Renewal