2013 GMC Yukon XL 1500 Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2013 GMC Yukon XL 1500 and How to Fix Them

Find Repair Location
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 2013 GMC Yukon XL 1500 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 2013 GMC Yukon XL 1500 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.

An oil leak may be noted on the ground where the vehicle is parked. However, many vehicles have plastic trays underneath the engine that may catch leaking oil and conceal the leak. In such cases, a low oil level, a burning oil smell, or even smoke from oil burning in the engine bay may be noted.

»MORE: Signs of a bad oil pan gasket

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 initial steps to diagnose the oil leak in a 2013 GMC Yukon XL 1500?

To effectively diagnose an oil leak in your 2013 GMC Yukon XL 1500, start by consulting the service information for specific diagnostic steps tailored to your vehicle. This will help you pinpoint the leak's source accurately. If you suspect the leak originates from the engine rear cover assembly, follow the guidelines for its replacement, which will involve removing certain components to gain access. It's crucial to act quickly upon identifying the leak to prevent further engine damage, so consider using a pressure washer to clean the affected area. This will not only help you see the leak more clearly but also allow you to observe where the oil is seeping from. By systematically following these steps, you can efficiently diagnose and address the oil leak, ensuring your vehicle remains in good working condition.

What are the common causes of oil leaks in a 2013 GMC Yukon XL 1500?

When dealing with oil leaks in a 2013 GMC Yukon XL 1500, it's crucial to understand the common culprits that may be at play. One frequent issue is the deterioration of the oil pan gasket, which can wear out over time, leading to leaks. Similarly, valve cover gaskets are prone to wear and can also result in oil escaping from the engine. Another potential source of leaks is the oil filter housing gasket, which may fail and necessitate replacement to stop the leak. Additionally, the rear main seal, located at the back of the engine, can develop leaks as the vehicle ages, causing oil to drip from the engine's underside. Lastly, oil cooler lines can suffer from wear or damage, leading to leaks that can be spotted on the ground beneath the vehicle. Addressing these issues promptly is vital to prevent further engine damage and ensure optimal vehicle performance. Regular inspections and maintenance can help you catch these problems early, allowing for effective DIY repairs.

How urgent is it to address an oil leak in a 2013 GMC Yukon XL 1500?

Addressing an oil leak in your 2013 GMC Yukon XL 1500 is not just a matter of routine maintenance; it is a critical issue that demands immediate attention. Ignoring an oil leak can lead to severe engine damage due to inadequate lubrication, which increases friction and heat among engine components. This can result in costly repairs or even engine failure. Additionally, oil leaks pose environmental hazards, contaminating soil and water sources, which can have long-lasting effects on local ecosystems. Safety is another significant concern, as oil spills can create slippery surfaces, increasing the risk of accidents for both you and other drivers. Furthermore, delaying repairs can escalate the problem, leading to more extensive damage and higher repair costs down the line. Therefore, it is essential to act swiftly to address any oil leaks, ensuring the safety, performance, and longevity of your vehicle while also protecting the environment.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.

2013 GMC Yukon XL 1500 Oil Leak Causes & Repair Costs