2015 Chevrolet Colorado Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2015 Chevrolet Colorado and How to Fix 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 2015 Chevrolet Colorado 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 2015 Chevrolet Colorado 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 steps should I take to diagnose the oil leak in my 2015 Chevrolet Colorado?

When diagnosing an oil leak in your 2015 Chevrolet Colorado, it's essential to adopt a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Begin by locating the leak; inspect the ground beneath your vehicle for any signs of oil pooling or dripping, which can help you pinpoint the source. Next, examine the oil pan for cracks or damage, as this is a common culprit for leaks. Ensure that the oil filter is securely installed and not leaking, as improper installation can lead to oil loss. Additionally, check the oil drain plug to confirm it is tight and not contributing to the issue. Pay close attention to the gaskets and seals around the engine, as wear and tear in these areas can also result in leaks. Regularly monitoring your oil levels will provide insight into whether there is a significant loss over time, indicating a leak. If these steps do not reveal the source of the problem, consulting a mechanic for a professional diagnosis is advisable to ensure a thorough and accurate assessment. By following this diagnostic approach, you can effectively identify and address the oil leak in your vehicle.

What are the common causes of oil leaks in a 2015 Chevrolet Colorado?

When diagnosing oil leaks in a 2015 Chevrolet Colorado, 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 leaks. Additionally, a faulty or improperly installed oil filter can also be a source of leaks, so ensuring that the filter is correctly fitted is essential. Another area to inspect is the oil drain plug; if it is loose or damaged, it can easily allow oil to escape. Valve cover gasket leaks are another common problem, as they can develop over time and result in oil seeping from the engine. Lastly, don’t overlook the oil cooler lines, as any issues here can also contribute to oil leaks. By regularly checking these components and addressing any signs of wear or damage, you can effectively manage and prevent oil leaks, ensuring your vehicle runs smoothly and efficiently.

How urgent is it to address the oil leak in my 2015 Chevrolet Colorado?

Addressing an oil leak in your 2015 Chevrolet Colorado is not just a matter of convenience; it is a critical maintenance task that demands immediate attention. Ignoring an oil leak can lead to severe engine damage, decreased performance, and costly repairs down the line. Regularly inspecting your vehicle for dark spots on the ground can help you catch leaks early, allowing for timely intervention. If you notice a leak, it’s essential to identify the source, as issues like a faulty gasket or porosity in the engine cover can exacerbate the problem. While a stop-leak additive may offer a temporary solution, it is advisable to change your engine oil and filter to ensure optimal performance. By addressing the leak promptly, you not only safeguard your vehicle’s health but also enhance your safety on the road, making it a priority for any DIY enthusiast.

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