2019 GMC Savana 2500 Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2019 GMC Savana 2500 and How to Address Them Effectively

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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 2019 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 2019 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 steps should I take to diagnose the oil leak in my 2019 GMC Savana 2500?

When diagnosing an oil leak in your 2019 GMC Savana 2500, it's essential to adopt a systematic approach that begins with the most straightforward checks. Start by visually inspecting the area beneath your vehicle for any signs of oil pooling or dripping, as this can help you pinpoint the leak's location. Next, check the oil level to determine if there has been a significant drop, which may indicate a more serious issue. It's also crucial to examine the oil filter and drain plug for tightness, as loose components can easily lead to leaks. After these initial checks, inspect the gaskets and seals around the engine, focusing on areas like the valve cover and oil pan, since worn or damaged gaskets are common culprits. If the source remains elusive, consider using UV dye in the oil, which can illuminate the leak under a UV light after running the engine. For a more thorough investigation, a pressure test of the oil system can help identify leaks that are not immediately visible. If these methods do not yield results or if you feel uncertain about the diagnosis, consulting a qualified mechanic is advisable to ensure a comprehensive evaluation and appropriate repairs.

What are the common causes of oil leaks in a 2019 GMC Savana 2500?

When dealing with oil leaks in a 2019 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, a faulty or improperly installed oil filter can also result in oil escaping, so it's important to ensure that this component is correctly fitted. Another area to inspect is the valve cover gasket, as wear and tear can cause it to fail, allowing oil to seep out. Furthermore, pay attention to the oil drain plug; if it is loose or damaged, it can be a source of leaks. Lastly, a leak from the rear main seal is another possibility that should not be overlooked. Addressing these issues promptly is essential to prevent engine damage and maintain the vehicle's performance, making regular inspections and maintenance a key part of vehicle care for DIY enthusiasts.

How urgent is it to address the oil leak in my 2019 GMC Savana 2500?

Addressing an oil leak in your 2019 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 cascade of problems, starting with a decrease in oil levels that can severely damage your engine. As oil levels drop, the engine may overheat, leading to catastrophic failure that could leave you stranded and facing costly repairs. Moreover, oil leaks pose safety risks, as they can create slippery surfaces on the road, increasing the likelihood of accidents due to loss of traction. Beyond personal safety, there are environmental concerns to consider; oil leaks can contaminate soil and water sources, contributing to broader ecological damage. Therefore, it is essential to act swiftly and address any oil leak in your GMC Savana 2500 to safeguard both your vehicle's performance and your safety on the road.

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2019 GMC Savana 2500 Oil Leak Causes & Diagnosis | RepairPal