2018 Jeep Cherokee Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2018 Jeep Cherokee and How to Address 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 2018 Jeep 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 2018 Jeep 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 2018 Jeep Cherokee?

When diagnosing an oil leak in your 2018 Jeep Cherokee, it's essential to adopt a systematic approach that begins with the most straightforward checks. Start by locating the leak; inspect the area beneath your vehicle for any oil drips or puddles, and examine the engine and transmission for wet spots or stains. Next, check the oil level to determine if it is significantly low, which could indicate a leak. Pay close attention to the oil filter and drain plug, ensuring they are secure and free from damage. Additionally, inspect the gaskets and seals, such as the valve cover and oil pan gaskets, as these are common culprits for leaks. If the source remains elusive, consider using UV dye in the engine oil, which can help highlight the leak under a UV light. For a more thorough investigation, a pressure test on the oil system can pinpoint the leak's exact location. If these methods do not yield results or if you feel uncertain about the process, consulting a professional mechanic is advisable, as they possess the expertise and tools necessary for accurate diagnosis and repair. By following this diagnostic approach, you can effectively identify and address the oil leak in your Jeep Cherokee.

What are the common causes of oil leaks in a 2018 Jeep Cherokee?

When dealing with oil leaks in a 2018 Jeep Cherokee, it's essential to understand the common culprits that may be at play. One frequent issue is a worn or damaged oil pan gasket, which can deteriorate over time, leading to leaks. Additionally, a faulty oil filter or its seal can also be a source of oil leakage, as any damage here can result in oil escaping from the filter housing. Another area to inspect is the valve cover gasket; if this gasket has aged or become compromised, it can allow oil to seep out. Furthermore, the oil drain plug should be checked for tightness and integrity, as a loose or damaged plug can lead to significant oil loss. Lastly, the rear main seal, located at the back of the engine, is another potential leak point that can develop issues over time. By regularly inspecting these components and addressing any signs of wear or damage, you can effectively manage and prevent oil leaks, ensuring your Jeep Cherokee remains in optimal condition.

How urgent is it to address the oil leak in my 2018 Jeep Cherokee?

Addressing an oil leak in your 2018 Jeep 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, starting with engine damage due to insufficient oil levels. As oil leaks out, the engine may not receive the lubrication it needs, increasing the risk of severe wear and tear, which can ultimately result in engine failure. This not only incurs costly repairs but could also necessitate a complete engine replacement, a financial burden that can be easily avoided with prompt action. Furthermore, oil leaks pose safety hazards, as they can create slippery surfaces on the road, increasing the likelihood of accidents. The environmental implications are also significant, as leaking oil can contaminate soil and water sources, contributing to ecological damage. By addressing the oil leak swiftly, you ensure that your Jeep Cherokee maintains optimal performance and safety, safeguarding both your investment and your well-being on the road.

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2018 Jeep Cherokee Oil Leak: Causes & Repair Costs