2015 Jeep Grand Cherokee Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2015 Jeep Grand Cherokee 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 2015 Jeep Grand Cherokee 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 2015 Jeep Grand Cherokee 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 2015 Jeep Grand Cherokee?

To effectively diagnose an oil leak in your 2015 Jeep Grand Cherokee, begin by locating the source of the leak. Inspect the area beneath your vehicle for any visible oil drips or pools, as well as oil stains on the engine and surrounding components. Once you have a general idea of where the leak might be coming from, check the oil level to see if it is consistently low, which could indicate a leak. Next, examine the oil filter and drain plug for any signs of leakage, ensuring they are properly tightened and undamaged. Pay close attention to gaskets and seals, particularly the valve cover gasket, oil pan gasket, and camshaft seals, as these are common culprits for oil leaks when they become worn or damaged. For a more precise diagnosis, consider adding UV dye to the engine oil; after running the engine briefly, use a UV light to identify the leak, as the dye will glow under the light. If the source remains elusive, performing a pressure test on the oil system can help pinpoint leaks by pressurizing the system and observing any escaping oil. Should you find the process overwhelming or if the leak persists, consulting a qualified mechanic is advisable, as they possess the expertise and tools necessary for accurate diagnosis and repair. By following this structured approach, you can effectively identify and address the oil leak in your Jeep, ensuring it runs smoothly and efficiently.

What are the common causes of oil leaks in a 2015 Jeep Grand Cherokee?

When dealing with oil leaks in a 2015 Jeep Grand Cherokee, it's essential to understand the various common problems that can arise. One of the primary culprits is the failure of oil system components, which can lead to leaks from engine gaskets. Worn-out drain plugs and damaged gaskets are also frequent offenders, often resulting in oil seeping from the engine. For those with the 3.6-liter engine, the oil cooler and oil filter housing are notorious for developing leaks, making them critical areas to inspect. Additionally, issues such as cracked oil reservoirs, faulty oil filters, and deteriorated seals can contribute to oil leaks. It's also important to check for damaged oil pan gaskets, loose drain plugs, and problems with the rear main seal, as these can exacerbate the situation. Regular maintenance and thorough inspections are vital in catching these issues early, ensuring your Jeep remains in optimal condition and preventing costly repairs down the line.

How urgent is it to address the oil leak in a 2015 Jeep Grand Cherokee?

Addressing an oil leak in your 2015 Jeep Grand Cherokee is not just a matter of routine maintenance; it is a critical issue that demands immediate attention. Ignoring an oil leak can lead to a cascade of problems, including reduced oil levels that compromise engine lubrication, potentially resulting in severe engine damage. Furthermore, a leaking oil system can cause the engine to overheat, which may lead to catastrophic mechanical failures. The safety risks are equally concerning, as oil dripping onto hot engine components can ignite, posing a fire hazard. Additionally, the environmental impact of leaking oil cannot be overlooked, as it can contaminate soil and water sources. Therefore, it is essential to act swiftly to repair any oil leaks, ensuring the longevity of your vehicle, your safety, and the protection of the environment.

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