2020 Chevrolet Express 2500 Is Leaking Oil

Troubleshooting Oil Leak Sources in Your 2020 Chevrolet Express 2500 and How to Fix Them

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Reviewed by
Andrew Hajjar
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 2020 Chevrolet Express 2500 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 2020 Chevrolet Express 2500 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

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 2020 Chevrolet Express 2500?

To effectively diagnose an oil leak in a 2020 Chevrolet Express 2500, start by locating the leak, which involves checking underneath the vehicle for any visible oil drips or pools. Next, open the hood and inspect the engine for oil stains or wet spots that may indicate the source of the leak. It's also crucial to check the oil level using the dipstick; a significant drop could signal a leak. Pay special attention to the oil filter and drain plug, ensuring they are secure and free from leaks. Additionally, examine the gaskets and seals around the oil pan and valve cover for any signs of wear or damage, as these are common culprits for oil leaks. If the source remains elusive, consider performing a pressure test to help identify leaks that are not immediately visible. By following these steps, you can systematically diagnose the issue and take appropriate action to resolve the oil leak.

What are the common causes of oil leaks in a 2020 Chevrolet Express 2500?

When dealing with oil leaks in a 2020 Chevrolet Express 2500, it's essential 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 significant leaks. Additionally, a faulty or improperly installed oil filter can also be a source of oil leakage, so ensuring that the filter is correctly fitted is crucial. Another area to inspect is the valve cover gasket; if this component has worn out, it can allow oil to escape from the engine. Furthermore, the oil cooler lines are susceptible to wear and tear, which can result in leaks as well. Lastly, don't overlook the oil drain plug; if it is damaged or not tightened properly, it can also contribute to oil leaks. By regularly inspecting these components and addressing any issues promptly, DIY enthusiasts can maintain their vehicle's performance and prevent further engine damage.

How urgent is it to address the oil leak in my 2020 Chevrolet Express 2500?

Addressing an oil leak in your 2020 Chevrolet Express 2500 is not just a matter of routine maintenance; it is an urgent issue that requires immediate attention. Failing to fix an oil leak can lead to a significant drop in oil levels, which compromises engine lubrication and can ultimately result in severe engine damage. Moreover, the presence of oil on hot engine components poses a serious fire hazard, creating a dangerous situation for both the vehicle and its occupants. Additionally, oil leaks can have detrimental effects on the environment, as they can contaminate soil and water sources, leading to broader ecological issues. Therefore, it is crucial to prioritize the repair of any oil leaks to ensure the safety of your vehicle, protect the environment, and maintain the longevity of your engine.

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2020 Chevrolet Express 2500 Oil Leak Causes & Repair Costs