2011 Mitsubishi Endeavor Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2011 Mitsubishi Endeavor and How to Fix Them

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Reviewed by
Bo Fader
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 2011 Mitsubishi Endeavor 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 2011 Mitsubishi Endeavor 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.

Oil pans don't wear out or break like other parts, they generally only need to be replaced because of external damage from an accident or an improperly tightened drain plug. The main symptom you will experience is an oil leak underneath the engine of your car. The oil that leaks from a damaged oil pan will range from dark brown to dark black. If the leak is large enough or occurs for long enough the oil level will be low enough to turn the oil pressure or low oil level warning light on.

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 steps to diagnose the oil leak in a 2011 Mitsubishi Endeavor?

To effectively diagnose an oil leak in your 2011 Mitsubishi Endeavor, start by visually inspecting the engine bay and the area beneath the vehicle to locate the source of the leak. Pay close attention to common culprits such as the oil pan, oil filter, and valve cover gasket, as these are frequent areas for leaks to occur. Next, check the oil level in the engine; a significant drop may indicate a serious leak that requires immediate attention. Inspect the oil pan for any signs of damage or corrosion, and if you find loose bolts, tighten them to see if that resolves the issue. The oil filter should also be examined for leaks or damage, and replacing it may be necessary if it shows signs of wear. Additionally, the valve cover gasket can deteriorate over time, so look for any signs of wear that could lead to leaks. Don’t forget to check the oil drain plug to ensure it is secure and not contributing to the leak; replacing the drain plug gasket might be needed if it appears worn. If visual inspections do not reveal the source of the leak, consider performing a pressure test to identify any hidden leaks in the oil system. By following this diagnostic approach, you can systematically assess and address the oil leak in your vehicle.

What are the common causes of oil leaks in a 2011 Mitsubishi Endeavor?

When diagnosing oil leaks in a 2011 Mitsubishi Endeavor, it's crucial to understand the common culprits that may be at play. One frequent issue is a worn or damaged oil pan gasket, which can deteriorate over time and lead to significant leaks. Similarly, a faulty valve cover gasket can also cause oil seepage, often noticeable around the engine's top. Another potential source of leaks is the oil filter; if it is loose or improperly installed, it can easily allow oil to escape. Additionally, physical damage to the oil pan itself can result in leaks, so inspecting for cracks or dents is essential. Lastly, various oil seals within the engine can degrade over time, contributing to leaks. Addressing these issues promptly is vital to maintaining engine health and performance, and regular inspections can help catch these problems early, making it easier for DIY enthusiasts to tackle repairs effectively.

How urgent is it to address the oil leak in my 2011 Mitsubishi Endeavor to prevent potential engine damage?

Addressing an oil leak in your 2011 Mitsubishi Endeavor is of utmost importance to prevent severe engine damage. Oil plays a vital role in lubricating engine components, and a leak can lead to insufficient lubrication, resulting in increased friction and wear on critical parts. This not only risks overheating but can also cause catastrophic failures, such as warping or complete engine breakdown. Moreover, a significant leak can allow oil to spill onto other engine components, creating additional hazards and potentially compromising safety. Regularly checking your oil levels and promptly addressing any leaks is essential for maintaining your vehicle's health and avoiding costly repairs. Ignoring these symptoms can lead to dire consequences, making it crucial to act swiftly to ensure the longevity and proper functioning of your engine.

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