2017 Chevrolet Silverado 2500 HD Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2017 Chevrolet Silverado 2500 HD and How to Fix Them

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Reviewed by
Devin Cabugcal
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 2017 Chevrolet Silverado 2500 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 2017 Chevrolet Silverado 2500 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.

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 steps should I take to diagnose and fix the oil leak in my 2017 Chevrolet Silverado 2500 HD?

To effectively diagnose and fix an oil leak in your 2017 Chevrolet Silverado 2500 HD, begin by locating the source of the leak. This involves inspecting the area beneath your vehicle for any visible oil drips or stains, which can help pinpoint where the leak is originating. Once you have identified a potential leak, check the oil level in your engine; a low oil level can confirm the presence of a leak. Next, inspect the gaskets and seals around critical components such as the oil pan and valve cover, as these are common culprits for leaks. Pay special attention to the oil pan for any cracks or loose bolts, and ensure the oil filter is securely fastened and not leaking. Additionally, examine the oil drain plug and the valve cover gasket for any signs of wear or damage. Lastly, don’t overlook the PCV system, as a malfunction here can also lead to oil leaks. If these steps do not resolve the issue, it may be time to consult a professional mechanic for further assistance. By following this structured approach, you can efficiently diagnose and address the oil leak in your Silverado, potentially saving time and money on repairs.

What are the common causes of oil leaks in a 2017 Chevrolet Silverado 2500 HD?

When diagnosing oil leaks in a 2017 Chevrolet Silverado 2500 HD, it's essential to understand the common problems that may arise. One frequent issue is a worn or damaged oil pan gasket, which can deteriorate over time, leading to leaks. Similarly, a faulty valve cover gasket can also contribute to oil seepage, especially if it has become brittle or cracked. Another potential culprit is the oil filter; if it is not installed correctly or becomes loose, it can allow oil to escape from the engine. Additionally, pay attention to the oil drain plug, as a loose or damaged plug can lead to significant leaks. Lastly, seals around critical engine components, such as the crankshaft and camshaft, can wear out or crack, resulting in oil leaks. Regular inspections and maintenance can help identify these issues early, allowing for timely repairs and ensuring your Silverado runs smoothly.

How urgent is it to address the oil leak in my 2017 Chevrolet Silverado 2500 HD?

Addressing an oil leak in your 2017 Chevrolet Silverado 2500 HD 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 severe engine damage over time, leading to costly repairs that could have been easily avoided. Furthermore, an oil leak increases the risk of engine overheating, as insufficient oil circulation can cause critical parts to run hotter than normal. This overheating can escalate into catastrophic engine failure, leaving you with a hefty repair bill and a vehicle that may be out of commission for an extended period. Additionally, the safety implications of an oil leak cannot be overlooked; oil dripping onto hot engine parts poses a fire hazard, putting both you and your vehicle at risk. Therefore, it is crucial to address any signs of an oil leak promptly to ensure the safe and efficient operation of your Chevrolet Silverado 2500 HD, protecting both your investment and your safety on the road.

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