2009 Subaru Forester Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2009 Subaru Forester and How to Fix Them Effectively

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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 2009 Subaru Forester 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 2009 Subaru Forester 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.

What are the initial steps to diagnose the oil leak in a 2009 Subaru Forester?

When diagnosing an oil leak in your 2009 Subaru Forester, start with a thorough visual inspection of the vehicle. Look for any visible signs of oil accumulation or droplets beneath the car, particularly in the areas where you typically park. This initial check can often reveal the presence of a leak. Next, inspect the oil level using the dipstick; a low oil level may indicate a leak that needs immediate attention. Pay special attention to common leak sources such as the valve cover gaskets and the cross member beneath the engine, as these are frequent culprits in Subaru models. If you notice any unusual symptoms like a smoky exhaust or an oil light on the dashboard, these can provide additional clues about the severity and location of the leak. To ensure you are dealing with engine oil and not another fluid, compare the color and consistency of any fluid found with that of the power steering fluid. If necessary, elevate the vehicle for a better view of the underside, looking for fresh oil spots or build-up around critical components. While temporary solutions like "oil stop leaks" can be used in emergencies, they are not a substitute for proper repairs. If the problem seems beyond your expertise, consulting a professional mechanic is advisable to prevent further damage.

What are the common causes of oil leaks in a 2009 Subaru Forester?

When dealing with oil leaks in a 2009 Subaru Forester, it's essential to understand the common culprits that may be causing the problem. Start by examining the valve cover gaskets, as these are notorious for deteriorating over time and can lead to oil dripping onto the exhaust pipe, creating a burning smell. Next, consider the head gaskets, which are particularly problematic in older models and may require extensive repairs if they fail. Additionally, inspect the camshaft seals, as these can also wear out and lead to leaks. Don't overlook the spark plug tube seals, which are another frequent source of oil leakage. Other areas to check include the rear main seal, piston access plugs, and the crank seal at the front of the engine. Lastly, issues with the oil pan seal or a missing drain plug crush washer can be simpler to diagnose and fix. For a more precise identification of the leak's source, using a fluorescent dye in the oil and inspecting with a black light can be an effective DIY method. By focusing on these common areas, you can effectively troubleshoot and address oil leaks in your Subaru Forester.

How urgent is it to address the oil leak in my 2009 Subaru Forester?

Addressing an oil leak in your 2009 Subaru Forester is not just a matter of routine maintenance; it is an urgent issue that requires immediate attention. Ignoring an oil leak can lead to catastrophic engine failure, as the engine relies on proper lubrication to function effectively. Without sufficient oil, the engine components can wear down rapidly, resulting in costly repairs or even necessitating a complete engine replacement. Moreover, driving with a low oil level poses significant safety risks, including the potential for the engine to overheat or seize, which could lead to dangerous driving conditions and accidents. It is crucial to identify the source of the leak promptly, as common culprits include valve cover gaskets and oil pan gaskets. While temporary solutions like oil stop leaks may offer short-term relief, they are not substitutes for a professional repair. If you notice any signs of an oil leak, it is advisable to have your vehicle inspected by a mechanic as soon as possible, or consider towing it to prevent further damage and ensure your safety on the road.

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