2004 Mitsubishi Galant Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2004 Mitsubishi Galant 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 2004 Mitsubishi Galant 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 2004 Mitsubishi Galant 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 and fix an oil leak in a 2004 Mitsubishi Galant?

When tackling an oil leak in your 2004 Mitsubishi Galant, it's essential to adopt a systematic diagnostic approach. Start by regularly checking the oil level and condition, as this can help you identify the leak's source. Look for oil spots under the vehicle when parked, which can guide you to the general area of the leak. Common culprits include the oil pan, oil filter, drain plug, and valve cover gasket, so inspect these areas for any signs of seepage. For a more precise diagnosis, consider using a UV dye in the oil along with a UV light to trace the leak's origin. Once you've identified the source, proceed with the necessary repairs, such as replacing damaged gaskets or tightening loose components. After completing the repairs, ensure to clean the engine and surrounding areas thoroughly to monitor for any new leaks, ensuring your Galant runs smoothly and efficiently.

What are the common causes of oil leaks in a 2004 Mitsubishi Galant?

When dealing with oil leaks in a 2004 Mitsubishi Galant, it's crucial to understand the common culprits that may be at play. One frequent issue is the oil pan gasket, which can wear out over time, leading to leaks that can be easily spotted under the vehicle. Another area to inspect is the valve cover gasket; if this component is compromised, it can allow oil to escape, often resulting in noticeable stains on the engine. Additionally, the oil filter housing gasket is another potential source of leaks, as it can deteriorate and fail, causing oil to seep from this connection. The rear main seal, located at the back of the engine, is also known to develop leaks, which can be more challenging to detect but can lead to significant oil loss. Lastly, don't overlook the oil cooler lines, as these can wear out and create leaks as well. By regularly inspecting these areas and addressing any signs of oil leakage promptly, DIY enthusiasts can help maintain their vehicle's performance and prevent further engine damage.

How urgent is it to address the oil leak in a 2004 Mitsubishi Galant?

Addressing an oil leak in your 2004 Mitsubishi Galant is not just a matter of routine maintenance; it is a pressing concern that requires immediate attention. Ignoring an oil leak can lead to a significant drop in oil levels, which compromises the engine's lubrication system and increases the risk of severe engine damage over time. Additionally, a lack of proper lubrication can cause the engine to overheat, potentially resulting in costly repairs or even complete engine failure. Beyond mechanical issues, oil leaks can create hazardous conditions, as leaking oil may drip onto hot engine components, posing a fire risk. By promptly addressing the oil leak, you not only safeguard your vehicle's performance and longevity but also ensure your safety on the road. Therefore, it is crucial to take action as soon as you notice any signs of an oil leak to prevent further complications and maintain the reliability of your Galant.

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