2007 Mitsubishi Lancer Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2007 Mitsubishi Lancer and How to Fix Them Effectively

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Reviewed by
Devin Cabugcal
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 Lancer 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 Lancer 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 2007 Mitsubishi Lancer?

To effectively diagnose an oil leak in your 2007 Mitsubishi Lancer, 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 leak points such as the oil pan, oil filter, and valve cover. Once you have identified a potential leak area, check the oil level in the engine; a significant drop may indicate a serious leak that requires immediate attention. Next, examine the oil pan and its gasket for any signs of oil accumulation, and ensure that the bolts are securely tightened. The oil filter should also be inspected for tightness and any visible leaks, as a loose or damaged filter can contribute to oil loss. Additionally, assess the valve cover gasket for wear or damage, as this is another frequent source of leaks. Don’t forget to check the oil drain plug to ensure it is secure and not leaking, replacing the washer if necessary. Finally, inspect other components such as oil cooler lines and the oil pressure sensor for any signs of leakage. Cleaning the engine can also help you identify new leaks more easily. By following this systematic approach, you can effectively diagnose and address oil leaks in your vehicle.

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

When addressing oil leaks in a 2007 Mitsubishi Lancer, it's important to recognize the common problems that can lead to these issues. A primary cause is often a worn or damaged oil pan gasket, which can degrade over time and result in significant leaks. Additionally, a faulty valve cover gasket may contribute to oil seepage, as it can wear out and fail to maintain a proper seal. Another frequent issue is a leaking oil filter; if the filter is loose or damaged, it can allow oil to escape from the engine. Physical damage to the oil pan itself, such as cracks or punctures, can also lead to leaks. Furthermore, the degradation of oil seals within the engine can occur over time, resulting in leaks that may not be immediately visible. Promptly addressing these issues is crucial to prevent further engine damage and ensure optimal vehicle performance, making regular inspections and maintenance essential for any DIY enthusiast looking to keep their Lancer in top shape.

How urgent is it to address the oil leak in my 2007 Mitsubishi Lancer?

Addressing an oil leak in your 2007 Mitsubishi Lancer is not just a matter of routine maintenance; it is a pressing issue that requires immediate attention. Ignoring an oil leak can lead to severe engine damage due to insufficient lubrication, as oil is vital for the smooth operation of engine components. Additionally, the presence of leaking oil increases the risk of fire, especially if it comes into contact with hot engine parts. The longer you delay repairs, the more extensive and costly the damage can become, potentially leading to a situation where a simple fix turns into a major overhaul. Therefore, it is crucial to act swiftly to mitigate these risks, ensuring both the safety of your vehicle and the longevity of its engine. Taking prompt action not only protects your investment but also enhances your driving experience by maintaining optimal vehicle performance.

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