2019 Chevrolet Malibu Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2019 Chevrolet Malibu and How to Address Them

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Reviewed by
Bo Fader
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 Chevrolet Malibu 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 Chevrolet Malibu 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.

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 an oil leak in a 2019 Chevrolet Malibu?

To effectively diagnose an oil leak in a 2019 Chevrolet Malibu, start by locating the source of the leak, which often reveals itself through oil spots on the ground beneath the vehicle. Once identified, inspect the oil pan for any visible damage or loose bolts, as these are common culprits. Next, check the oil filter to ensure it is securely installed and free from leaks. The oil drain plug should also be examined for tightness, and if necessary, replace the gasket to prevent further leakage. Additionally, inspect the valve cover gasket for wear and tear, as a damaged gasket can lead to significant oil loss. Don’t overlook the oil cooler lines; any cracks or leaks here should be addressed promptly. Finally, assess the oil pressure sensor, as a faulty sensor can also contribute to leaks. Throughout this process, keep a close watch on your oil levels to gauge the severity of the leak and help pinpoint its exact location. By following this systematic approach, you can effectively diagnose and address oil leaks in your Chevrolet Malibu.

What are the common causes of oil leaks in a 2019 Chevrolet Malibu?

When dealing with oil leaks in a 2019 Chevrolet Malibu, it's essential to understand the common culprits that may be at play. One of the primary issues is degraded gaskets and seals, which can wear out over time, allowing oil to escape from the engine. Additionally, a loose or damaged oil drain plug can lead to oil seepage from the oil pan, making it crucial to check its tightness and condition regularly. Another potential source of leaks is a faulty oil filter; if it is not installed correctly or is defective, it can result in significant oil loss. Furthermore, the oil pan itself may be compromised due to cracks or corrosion, which can also contribute to leaks. Lastly, problems with the valve cover gasket can cause oil to leak from the top of the engine, leading to visible signs of oil accumulation. By being aware of these common issues and conducting regular maintenance checks, DIY enthusiasts can effectively manage and prevent oil leaks in their Malibu.

How urgent is it to address the oil leak in my 2019 Chevrolet Malibu?

Addressing an oil leak in your 2019 Chevrolet Malibu 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 engine lubrication and increases the risk of severe engine damage over time. Additionally, a leaking engine can overheat, resulting in catastrophic mechanical failures that could leave you stranded or facing costly repairs. Beyond mechanical concerns, an oil leak poses serious safety hazards, as oil can drip onto hot engine components, creating a fire risk. Therefore, it is crucial to act swiftly and resolve any oil leak issues to safeguard both your vehicle's performance and your safety on the road.

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2019 Chevrolet Malibu Leaking Oil: Causes & Repairs