2016 Chevrolet Silverado 3500 HD Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2016 Chevrolet Silverado 3500 HD and How to Fix Them

Find Repair Location
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 2016 Chevrolet Silverado 3500 HD 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 2016 Chevrolet Silverado 3500 HD 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 and fix the oil leak in my 2016 Chevrolet Silverado 3500 HD?

To effectively diagnose and fix an oil leak in your 2016 Chevrolet Silverado 3500 HD, start with a systematic approach that prioritizes simpler solutions before moving on to more complex diagnostics. Begin by locating the leak; inspect under the vehicle for any visible oil drips or pools, focusing on common leak areas such as the oil pan, oil filter, and valve cover gaskets. Once you have identified potential leak sources, check the oil levels to ensure they are adequate, as running low on oil can lead to engine damage. Next, inspect the gaskets and seals for wear or damage, as these are often culprits in oil leaks. If you find any loose components, such as the oil pan or drain plug, tighten them to see if that resolves the issue. Cleaning the engine can also help you better identify the leak's source by removing old oil residue. If the leak remains elusive, consider performing a pressure test to pinpoint the exact location. Should these steps not yield results, consulting a professional mechanic is advisable, as they possess the expertise and tools necessary for a thorough diagnosis and repair. By following this structured approach, you can effectively address the oil leak and maintain your vehicle's performance.

What are the common causes of oil leaks in a 2016 Chevrolet Silverado 3500 HD?

When dealing with oil leaks in a 2016 Chevrolet Silverado 3500 HD, 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 compromise the seal between the oil pan and the engine block, leading to leaks. Similarly, valve cover gaskets are prone to wear, and their failure can allow oil to escape from the engine, creating noticeable leaks. Another potential source of oil leaks is the oil filter housing gasket; if this gasket fails, it can result in oil seeping from the connection point between the oil filter and the engine. Additionally, the rear main seal, located at the back of the engine, can also wear out, causing oil to leak from this critical area. Lastly, oil cooler lines can develop leaks over time, contributing to oil loss. Addressing these issues promptly is essential to prevent further engine damage and maintain optimal vehicle performance, making regular inspections and maintenance a vital part of vehicle ownership.

How urgent is it to address the oil leak in my 2016 Chevrolet Silverado 3500 HD?

Addressing an oil leak in your 2016 Chevrolet Silverado 3500 HD is not just a matter of routine maintenance; it is a critical step in ensuring the safety and longevity of your vehicle. Ignoring an oil leak can lead to a significant loss of oil, which is vital for lubricating engine components. Insufficient lubrication can increase friction, resulting in severe engine damage over time. Moreover, oil leaks can create hazardous conditions, as oil dripping onto hot engine parts poses a fire risk. By promptly addressing the leak, you not only safeguard your engine from costly repairs but also enhance your vehicle's overall performance. Regularly checking your oil levels and taking immediate action at the first sign of a leak can help maintain your Silverado's health, making it essential for any DIY enthusiast to prioritize this issue.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.

2016 Chevrolet Silverado 3500 HD Oil Leak Causes & Solutions