2007 Mitsubishi Endeavor Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2007 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 2007 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 2007 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 steps should I take to diagnose the oil leak in my 2007 Mitsubishi Endeavor?

When diagnosing an oil leak in your 2007 Mitsubishi Endeavor, it's essential to adopt a systematic approach that begins with the most straightforward checks before progressing to more complex diagnostics. Start by locating the leak; inspect the area beneath your vehicle for any oil drips or stains, which can provide immediate clues. Next, check the oil level in the engine; a consistently low level may indicate a leak. Pay close attention to the oil filter and drain plug, ensuring they are secure and free from damage. Gaskets and seals are also critical components to examine, as wear and tear can lead to leaks. If the source remains elusive, consider using UV dye in the oil, which can illuminate leaks under a UV light. For a more thorough investigation, a pressure test of the oil system can help identify hidden leaks. If these methods do not yield results, consulting a professional mechanic is advisable, as they possess the expertise and specialized tools necessary for effective diagnosis and repair. By following this structured diagnostic approach, you can efficiently identify and address the oil leak in your vehicle.

What are the common causes of oil leaks in a 2007 Mitsubishi Endeavor?

When diagnosing oil leaks in a 2007 Mitsubishi Endeavor, it's crucial to understand the common culprits that may be at play. One frequent issue is the deterioration of the oil pan gasket, which can wear down over time, leading to leaks. Similarly, valve cover gaskets are prone to wear and can allow oil to escape from the top of the engine, creating visible leaks. Another area to inspect is the oil filter housing gasket; if this component fails, it can result in oil seeping around the oil filter, making it a common source of leaks. Additionally, the rear main seal is another critical point to check, as it can wear out and lead to oil leaking from the back of the engine. Lastly, don’t overlook the oil cooler lines, as leaks in these lines can also contribute to oil loss. Addressing these issues promptly is essential not only for maintaining engine performance but also for preventing more severe damage down the line. Regular inspections and maintenance can help you catch these problems early, ensuring your Endeavor runs smoothly.

How urgent is it to repair the oil leak in a 2007 Mitsubishi Endeavor?

Addressing an oil leak in your 2007 Mitsubishi Endeavor is not just a matter of routine maintenance; it is a critical issue that requires immediate attention. Ignoring an oil leak can lead to severe engine damage due to low oil levels, which are essential for lubricating engine components and preventing overheating. Additionally, oil leaks pose safety hazards, as they can create slippery surfaces that increase the risk of accidents, both for you and other drivers on the road. Furthermore, a vehicle with low oil levels may experience diminished performance, leading to potential breakdowns that could leave you stranded. Beyond personal safety and vehicle reliability, there is also an environmental concern; leaked oil can contaminate soil and water sources, contributing to pollution. Therefore, it is crucial to prioritize the repair of any oil leaks to ensure the safety, performance, and longevity of your vehicle while also protecting the environment.

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