2016 GMC Acadia Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2016 GMC Acadia and How to Address 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 2016 GMC Acadia 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 2016 GMC Acadia 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.

A bad oil level sensor may cause a false reading of the engine oil level. The oil level warning light may illuminate even when the oil level (checked manually) is within an acceptable range. The warning light may also come on and off intermittently if the sensor is faulty. An error code may be sent to the PCM and a check engine light may come on the dashboard as well if the sensor is bad.

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 2016 GMC Acadia?

To effectively diagnose an oil leak in your 2016 GMC Acadia, start by examining the area beneath your vehicle for any signs of oil accumulation, as this is often the first indication of a leak. Once you identify any oil spots, it's essential to determine the source of the leak. This may require a thorough inspection of the engine compartment, where tight spaces can make it challenging to pinpoint the exact location. Pay particular attention to the oil filter and oil plug, as leaks often originate from these components. If you find that either the oil filter or plug is the culprit, replacing them can be a straightforward fix that may resolve the issue. By following this diagnostic approach, you can systematically address the problem and potentially save on repair costs while gaining a better understanding of your vehicle's maintenance needs.

What are the common causes of oil leaks in a 2016 GMC Acadia?

When dealing with oil leaks in a 2016 GMC Acadia, it's crucial 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 and lead to significant oil loss. Similarly, valve cover gaskets are prone to wear and can develop leaks, allowing oil to escape from the engine. Another potential source of leaks is the oil filter housing gasket; if this component fails, it can result in oil seeping out. Additionally, the rear main seal, located at the back of the engine, can also wear down, causing oil to leak from the engine's rear. Lastly, oil cooler lines are susceptible to leaks as well, which can contribute to oil seepage. Addressing these issues promptly is essential to prevent further engine damage and maintain optimal vehicle performance. Regular inspections and maintenance can help you catch these problems early, ensuring your GMC Acadia runs smoothly.

How urgent is it to address the oil leak in my 2016 GMC Acadia to prevent potential engine damage?

Addressing an oil leak in your 2016 GMC Acadia is of utmost urgency, as neglecting this issue can lead to severe engine damage and costly repairs. Oil plays a vital role in lubricating engine components, and a leak can significantly reduce oil levels, resulting in inadequate lubrication. This lack of lubrication increases friction among engine parts, which can lead to overheating and accelerated wear. Furthermore, a significant leak may cause a drop in oil pressure, a crucial factor for the engine's proper functioning. If the oil pressure drops too low, it can result in catastrophic engine failure. Therefore, it is essential to regularly check your oil levels and address any leaks immediately to ensure the longevity and reliability of your vehicle. Taking prompt action not only protects your engine but also saves you from the financial burden of extensive repairs down the line.

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2016 GMC Acadia Oil Leak Causes & Diagnosis | RepairPal