2015 Chevrolet Silverado 1500 Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2015 Chevrolet Silverado 1500 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 Silverado 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 2015 Chevrolet Silverado 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

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 the oil leak in a 2015 Chevrolet Silverado 1500?

To effectively diagnose an oil leak in your 2015 Chevrolet Silverado 1500, start by inspecting the underside of the vehicle for visible signs of oil. Look for oil spots on the ground and trace them back to their source, which can help you pinpoint the leak's origin. Next, check the engine oil level; a significant drop may indicate a serious leak that needs immediate attention. The oil pan is another critical area to examine; inspect it for any damage or corrosion that could lead to leaks. Don’t overlook the oil filter, as a faulty or improperly installed filter can also be a common culprit. Additionally, ensure the oil drain plug is secure and free from leaks, as a loose plug can allow oil to escape. Finally, inspect the valve cover gasket for wear, as this can often be a source of leaks. By following this methodical approach, you can identify the source of the oil leak and take the necessary steps to address it, ensuring your Silverado remains in optimal condition.

What are the common causes of oil leaks in a 2015 Chevrolet Silverado 1500?

When dealing with oil leaks in a 2015 Chevrolet Silverado 1500, it's essential 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 be a source of oil leakage. Another area to inspect is the oil filter housing gasket; if this component fails, it can result in significant oil loss. Additionally, the rear main seal, located at the back of the engine, can develop leaks as it ages, while oil cooler lines may also show signs of wear and tear, contributing to oil leaks. By regularly inspecting these components and addressing any signs of wear, DIY enthusiasts can effectively manage oil leaks, ensuring their Silverado remains in optimal condition and preventing further damage to the engine.

How urgent is it to address the oil leak in a 2015 Chevrolet Silverado 1500?

When dealing with an oil leak in a 2015 Chevrolet Silverado 1500, it is crucial to understand the urgency of the situation. A minor leak may seem manageable, but even small amounts of oil loss can lead to significant engine performance issues over time. Insufficient lubrication can increase friction among engine components, potentially resulting in costly repairs or even complete engine failure. Moreover, the safety risks associated with oil leaks cannot be overlooked; leaking oil can create hazardous conditions, such as fire risks when it contacts hot engine parts or slippery surfaces that may lead to accidents. Additionally, the environmental impact of oil leaks is a pressing concern, as they can contaminate soil and water sources. Therefore, addressing any signs of an oil leak promptly is essential not only for maintaining the vehicle's performance and safety but also for protecting the environment. For DIY enthusiasts, taking immediate action can save time, money, and prevent further complications down the road.

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2015 Chevrolet Silverado 1500 Oil Leak Issues & Repair Costs