2017 Subaru Crosstrek Has A Coolant Leak

Diagnosing Coolant Leak Issues in Your 2017 Subaru Crosstrek and Effective Repair Strategies

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
50% chance it's the
Loose Hose Connections
0%
25% chance it's the
Radiator
0%
25% chance it's the
Water Pump
The most common reasons a 2017 Subaru Crosstrek has a coolant leak are loose hose connections, a broken radiator, or a failed water pump.
  • Loose Hose Connections: A loose hose connection can lead to vacuum leaks or fluid loss, resulting in poor engine performance or overheating.
  • Radiator: A damaged or clogged radiator can impede coolant flow, resulting in engine overheating and reduced cooling efficiency.
  • Water Pump: A failing water pump can lead to coolant leaks or overheating due to inadequate circulation of coolant in the engine.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the steps to diagnose a coolant leak in a 2017 Subaru Crosstrek?

To effectively diagnose a coolant leak in your 2017 Subaru Crosstrek, start with a thorough visual inspection of the vehicle. Look for any visible signs of coolant pooling under the car or around critical components such as the radiator, hoses, and water pump. If you don’t spot any obvious leaks, proceed to perform a pressure test on the cooling system. This involves using a hand pump to pressurize the system, which can help reveal hidden leaks that may not be immediately visible. Additionally, keep an eye on the coolant level in the reservoir over several days; a consistent drop in level can indicate a leak. Don’t forget to inspect the radiator cap for any damage, as a faulty cap can also lead to coolant loss. Examine all hoses and connections for signs of wear, such as cracks or bulges, which could be the source of the leak. Lastly, be alert for any white smoke from the exhaust, as this could signal coolant entering the combustion chamber. By following this systematic approach, you can effectively identify and address any coolant leaks in your Crosstrek.

What are the common causes of a coolant leak in a 2017 Subaru Crosstrek?

When dealing with coolant leaks in a 2017 Subaru Crosstrek, it's essential to understand the common problems that may arise. One of the primary culprits is a damaged radiator, which can develop corrosion over time, leading to leaks. Additionally, a faulty radiator cap can disrupt the pressure balance within the cooling system, resulting in coolant escaping. Worn-out hoses are another frequent issue; as they age, they can crack or become brittle, allowing coolant to seep out. The water pump, responsible for circulating coolant, can also leak, particularly if its seals are compromised. In more severe cases, a cracked engine block may be the source of the leak, which requires immediate attention. Lastly, loose or damaged hose clamps can lead to hoses detaching or leaking coolant. Addressing these issues promptly is crucial to prevent overheating and potential engine damage, making it vital for DIYers to regularly inspect these components and take action as needed.

How urgent is it to address a coolant leak in a 2017 Subaru Crosstrek?

Addressing a coolant leak in your 2017 Subaru Crosstrek is not just a matter of routine maintenance; it is a critical safety concern that requires immediate attention. Coolant plays a vital role in regulating engine temperature, and a leak can lead to overheating, which poses a significant risk of severe engine damage. Ignoring this issue can result in costly repairs and potentially leave you stranded due to engine failure. Furthermore, a coolant leak can diminish your vehicle's overall performance and fuel efficiency, making it essential to monitor coolant levels regularly. By promptly addressing any signs of a leak, you not only safeguard your engine's health but also enhance the longevity and reliability of your Subaru Crosstrek. Taking swift action can prevent minor issues from escalating into major problems, ensuring a safer driving experience.

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2017 Subaru Crosstrek Coolant Leak Causes & Repair Costs