2017 GMC Savana 2500 Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2017 GMC Savana 2500 and How to Fix Them Effectively

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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 GMC Savana 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 2017 GMC Savana 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 steps to diagnose the oil leak in a 2017 GMC Savana 2500?

To diagnose an oil leak in your 2017 GMC Savana 2500, start by thoroughly inspecting the engine and the area beneath the vehicle for any visible signs of oil, such as stains or puddles. This initial step helps you locate the source of the leak. Next, check the oil level in the engine; a significant drop may indicate a serious leak that needs immediate attention. Pay close attention to the oil filter and drain plug, as these components are common culprits for leaks—tighten or replace them if you notice any looseness or oil residue. Additionally, examine the gaskets and seals, particularly the valve cover gasket and oil pan gasket, as wear and tear can lead to leaks. If the source remains elusive, consider performing a pressure test on the oil system, which can reveal hidden leaks that are not easily visible. Should these steps not yield results, consulting a mechanic is advisable for a professional diagnosis and repair. By following this structured approach, you can effectively identify and address oil leaks in your vehicle, ensuring it runs smoothly and efficiently.

What are the common causes of oil leaks in a 2017 GMC Savana 2500?

When dealing with oil leaks in a 2017 GMC Savana 2500, 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, valve cover gaskets are another common source of leaks, as they can wear out and allow oil to escape from the top of the engine. Another potential problem is the oil filter housing gasket; if this component fails, it can result in oil leaking from the filter area. Furthermore, the rear main seal, located at the back of the engine, is known to develop leaks, which can be particularly troublesome as it may require more extensive repairs. Lastly, oil cooler line leaks can also contribute to oil loss in this vehicle. To effectively manage these issues, regular maintenance and inspections are essential, as they can help you catch and resolve oil leaks early, ensuring your engine remains in good condition and operates smoothly.

How urgent is it to address the oil leak in my 2017 GMC Savana 2500?

Addressing an oil leak in your 2017 GMC Savana 2500 is not just a matter of routine maintenance; it is a critical issue that demands immediate attention. Ignoring an oil leak can lead to a significant drop in oil levels, which in turn can cause severe engine damage and even complete engine failure. This is particularly concerning as low oil levels can lead to overheating, putting your vehicle at risk of catastrophic breakdowns. Moreover, oil leaks pose safety hazards, as they can create slippery surfaces that increase the likelihood of accidents. Beyond personal safety, there are environmental implications to consider; oil leaks can contaminate soil and water sources, contributing to broader ecological damage. Therefore, it is essential to prioritize the repair of any oil leaks to safeguard your vehicle's performance, ensure your safety on the road, and protect the environment.

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