Mitsubishi I-MiEV Is Leaking Oil

Discover the Causes of Oil Leaks in Your Mitsubishi i-MiEV and How to Resolve Them Effectively

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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 Mitsubishi i-MiEV 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 Mitsubishi i-MiEV 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 Mitsubishi i-MiEV

When troubleshooting oil leaks in your Mitsubishi i-MiEV, it's essential to take a methodical approach to diagnose the issue effectively. Begin by checking the oil level, as a low level can signal either a leak or oil burning, which is often the easiest problem to rectify. Following this, inspect the oil system components, particularly the oil pressure sensor, since a damaged or dirty sensor can contribute to leaks. If these initial checks do not uncover the issue, turn your attention to the engine gaskets, which are frequent sources of oil leaks when they become worn or damaged. Additionally, evaluate the oil pump to ensure it is operating correctly, as a malfunctioning pump may fail to circulate oil adequately, resulting in leaks. Lastly, don't overlook the potential for vacuum leaks, which can also impact engine performance. By systematically assessing these components, you can pinpoint and address the source of the oil leak, helping to maintain the smooth and efficient operation of your i-MiEV. Regular maintenance and timely repairs are vital in preventing future complications and ensuring your vehicle remains in optimal condition.

How to Diagnose Oil Leaks in a Mitsubishi i-MiEV?

When diagnosing oil leaks in a Mitsubishi i-MiEV, it's crucial to recognize the common problems that can affect the vehicle's oil system. One prevalent issue is the wear and tear of seals and gaskets, which often leads to oil seeping around the motor and other critical components. Additionally, a malfunctioning oil pressure sensor can produce inaccurate readings, potentially triggering warning lights and causing unnecessary concern. The electric oil pump and EV oil cooler are also susceptible to leaks as they age, which can compromise the vehicle's performance. If you observe oil pooling beneath your i-MiEV, it may signal a more serious issue, such as a cracked oil pan or damaged hoses. By familiarizing yourself with these typical failure modes, you can more accurately identify the source of the leak and take appropriate action to address it, ensuring your i-MiEV operates smoothly and efficiently.

Why is it Urgent to Address Oil Leaks in a Mitsubishi i-MiEV?

Addressing oil leaks in a Mitsubishi i-MiEV is not just a matter of routine maintenance; it is a crucial step in safeguarding the vehicle's engine health and overall performance. Ignoring oil leaks can lead to a cascade of problems, including severe engine damage that may result in costly repairs. The engine relies on oil for lubrication, and any drop in oil levels due to leaks can compromise its functionality, leading to overheating and increased wear on engine components. Additionally, warning signs such as an illuminated oil light may indicate underlying issues like a faulty oil pressure sensor or a malfunctioning oil pump, which require immediate attention to prevent further complications. Regular oil changes are essential to maintain the integrity of oil pans and gaskets, and neglecting these can exacerbate leak issues. Therefore, for DIY enthusiasts, promptly addressing oil leaks is vital not only for the longevity of the Mitsubishi i-MiEV but also for ensuring safe and reliable driving experiences.

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Mitsubishi i-MiEV Oil Leak Causes & Repairs | RepairPal