2021 Chevrolet Traverse Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2021 Chevrolet Traverse and How to Address 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 2021 Chevrolet Traverse 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 2021 Chevrolet Traverse 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 potential causes and diagnostic steps for an oil leak in a 2021 Chevrolet Traverse?

When addressing an oil leak in your 2021 Chevrolet Traverse, it's essential to adopt a systematic diagnostic approach that prioritizes simpler checks before delving into more complex issues. Start with a thorough visual inspection under the vehicle to identify any obvious signs of oil pooling or dripping. Next, check the oil level to ensure it is within the recommended range, as a sudden drop may indicate a leak. Pay close attention to the gaskets and seals, as these components are prone to wear over time and can be a common source of leaks. Ensure that the oil drain plug is securely tightened, as a loose plug can easily lead to oil loss. Inspect the oil pan for any visible cracks or damage, and examine the oil filter for proper installation and potential leaks. Additionally, check the oil cooler lines for any signs of wear or damage, and don’t forget to look at the valve cover gasket, which can also be a culprit in oil seepage. By following this structured approach, you can effectively diagnose the source of the oil leak and take the necessary steps to resolve the issue, ensuring your vehicle remains in optimal condition.

What are the common causes of oil leaks in a 2021 Chevrolet Traverse?

When dealing with oil leaks in a 2021 Chevrolet Traverse, it's crucial to understand the common culprits that may be at play. One frequent issue is a degraded or damaged oil pan gasket, which can wear out over time and lead to leaks. Additionally, a faulty oil filter can also be a source of oil leakage, as it may not seal properly, allowing oil to escape from the engine. Another area to inspect is the oil drain plug; if it is loose or damaged, it can result in significant oil loss. The valve cover gasket is another component that can deteriorate with age, leading to leaks that can affect engine performance. Lastly, be sure to check the oil cooler lines, as cracks or damage in these lines can also contribute to oil leaks. Addressing these issues promptly is essential to prevent further engine damage and maintain the vehicle's performance, making regular inspections and maintenance a key part of vehicle care.

How urgent is it to address the oil leak in my 2021 Chevrolet Traverse?

Addressing an oil leak in your 2021 Chevrolet Traverse is not just a matter of routine maintenance; it is a pressing issue that requires immediate attention. Ignoring an oil leak can lead to a significant drop in oil levels, which compromises the lubrication of essential engine components. This lack of lubrication can result in increased friction, leading to premature wear and tear, and ultimately, costly engine damage. Furthermore, an oil leak can cause the engine to overheat, a situation that can escalate into severe mechanical failures or even complete engine failure if left unchecked. Additionally, the safety risks associated with leaking oil cannot be overlooked; oil can drip onto hot engine parts, creating a fire hazard that endangers both the vehicle and its occupants. Therefore, it is crucial to address any signs of an oil leak promptly to safeguard your vehicle's performance and ensure your safety on the road.

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