2013 GMC Acadia Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2013 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 2013 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 2013 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 steps to diagnose an oil leak in a 2013 GMC Acadia?

To effectively diagnose an oil leak in your 2013 GMC Acadia, start with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by checking the oil level to ensure it is within the recommended range, as low oil can indicate a leak. Next, inspect the area where you park for any oil spots, which can help pinpoint the leak's source. A thorough visual inspection of the engine, particularly around the front of the 3.6L V6 engine, is crucial for identifying any visible signs of oil. Cleaning the engine can also be beneficial, as it removes old oil residue and makes it easier to spot new leaks. After cleaning, run the engine for a short period; this can reveal fresh oil drips that may not have been visible before. If the oil level is low but no external leaks are found, further investigation is necessary, as the leak could be internal. Should you find yourself unable to locate the source of the leak or suspect a more serious issue, consulting a mechanic is advisable to ensure proper diagnosis and repair. By following this structured approach, you can efficiently identify and address oil leaks in your vehicle.

What are the common causes of oil leaks in a 2013 GMC Acadia?

When diagnosing oil leaks in a 2013 GMC Acadia, 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 that can compromise engine performance. Similarly, valve cover gaskets are prone to wear and can allow oil to escape, creating potential hazards if not addressed. Another area to inspect is the oil filter housing gasket; if this component fails, it can result in significant oil leakage. Additionally, the rear main seal, located at the back of the engine, is another common source of leaks, as it can deteriorate with age and usage. Lastly, oil cooler lines are susceptible to wear and tear, which can lead to seepage. For DIY enthusiasts, regularly checking these components can help catch leaks early, ensuring the longevity of your vehicle and preventing costly repairs down the line.

How urgent is it to address the oil leak in a 2013 GMC Acadia?

Addressing an oil leak in your 2013 GMC Acadia is not just a matter of routine maintenance; it is a pressing issue that requires immediate attention. Oil is vital for lubricating engine components, and a leak can lead to a significant loss of oil, resulting in inadequate lubrication and potential engine damage. Moreover, the presence of leaking oil creates a fire hazard, especially if it comes into contact with hot engine parts. Ignoring this issue can exacerbate the problem, leading to more extensive and costly repairs down the line. By tackling the oil leak promptly, you not only safeguard your vehicle's performance but also enhance its longevity, ensuring a safer driving experience. Therefore, if you notice any signs of an oil leak, it is crucial to act swiftly to prevent further complications.

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