Subaru Ascent Is Leaking Oil

Discover the Common Causes of Oil Leaks in Your Subaru Ascent and How to Address Them Promptly

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
80% chance it's the
Oil System Components
0%
20% chance it's the
Engine Gaskets
The most common reasons a Subaru Ascent is leaking oil are oil system component failure and leaking engine gaskets.
  • Oil System Components: A worn or damaged oil pump or filter can lead to low oil pressure, resulting in inadequate lubrication and potential engine damage.
  • Engine Gaskets: A worn or damaged engine gasket can lead to oil or coolant leaks, resulting in engine overheating or loss of lubrication.
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.

How much does it cost to fix a Subaru Ascent is leaking oil?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

The engine oil pressure warning light will come on if the engine oil pressure is low, or if the oil pressure sensor is faulty. In either case, engine power may be reduced significantly. The check engine light may also illuminate, and an on-board diagnostic (OBD) trouble code will be stored in the vehicle's computer.

Troubleshooting Oil Leaks in a Subaru Ascent

When troubleshooting oil leaks in your Subaru Ascent, start by examining the oil system components, particularly the oil pan, turbo, and engine gaskets, as these are frequent culprits. Pay special attention to the oil pan bolt located above the fumoto valve and the sway bar, where oil drips may be evident. If your Ascent is equipped with a 2.4 turbo engine, be aware that the seals may not always provide a tight fit, leading to potential leaks. Regular maintenance practices, such as timely oil changes and replacing the PCV valve, can significantly reduce the risk of leaks. However, if you notice oil seepage, it may be due to improper sealing from the factory, especially in newer models. For a thorough diagnosis, refer to Subaru's Service Information Bulletin, which outlines specific procedures for addressing oil leakage from the oil level switch area. By following this structured approach, you can effectively identify and resolve oil leaks, ensuring your vehicle remains in optimal condition.

How to Address Oil Leaks in a Subaru Ascent?

When addressing oil leaks in a Subaru Ascent, understanding the common problems associated with the vehicle's oil system is crucial for effective DIY repairs. Start by identifying the source of the leak through a detailed inspection of the oil system components and engine gaskets. Focus on the oil pans, as they can sustain external damage from accidents or improperly tightened drain plugs, rather than simply deteriorating over time. If your Ascent is equipped with the 2.4 turbo engine, be particularly vigilant about seal issues, which are known to cause leaks in this model. Regular oil changes play a vital role in preventing leaks, and it’s advisable to replace the PCV valve during maintenance to ensure optimal performance. If you discover multiple leaks or suspect a more serious issue involving the upper and lower oil pans or the turbo, consulting a professional may be necessary, as these problems can require significant repairs, including engine removal. To accurately locate the leak, look for oil spots on your driveway, inspect the oil pan bolts, and check for any oil accumulation around the engine. By being proactive and knowledgeable about these common issues, you can effectively manage oil leaks and maintain the performance of your Subaru Ascent.

How to Address an Oil Leak in a Subaru Ascent?

Addressing an oil leak in your Subaru Ascent is crucial not only for the longevity of your vehicle but also for your safety on the road. Ignoring an oil leak can lead to severe engine damage, which may result in costly repairs or even complete engine failure. Additionally, oil leaks can create hazardous driving conditions, as spilled oil can reduce traction and increase the risk of accidents. Therefore, it is essential to promptly identify the source of the leak, whether it be from the oil pan, engine gaskets, or other components. Regular inspections and maintenance, including checking for damage and ensuring that all components are functioning correctly, can help mitigate these risks. By replacing any faulty parts and adhering to a routine oil change schedule, you not only maintain the health of your engine but also prevent future leaks. Remember, addressing these issues early on can save you from more significant problems down the line, ensuring a safer and more reliable driving experience.

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Subaru Ascent Oil Leak Causes & Repair Costs | RepairPal