2019 Chevrolet Sonic Is Leaking Oil

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

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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 Chevrolet Sonic 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 Sonic 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 initial diagnostic steps to take for an oil leak in a 2019 Chevrolet Sonic?

When faced with an oil leak in your 2019 Chevrolet Sonic, it's essential to adopt a methodical diagnostic approach to identify the source of the problem effectively. Start by locating the leak; check beneath the vehicle for any visible oil spots or drips, as this can give you a clear indication of where the issue lies. Next, inspect the oil pan, a common culprit for leaks, looking for any cracks, damage, or loose bolts that may be contributing to the problem. Don’t overlook the oil filter; ensure it is securely installed and free from leaks, as a faulty filter can also lead to oil loss. Additionally, examine the oil drain plug to confirm it is tight and undamaged, as a loose plug can easily cause leaks. It's also crucial to check the gaskets and seals within the engine for signs of wear or damage, as these components are vital in preventing oil from escaping. Finally, keep an eye on your oil levels; a sudden drop can signal a significant leak that requires immediate attention. By following these steps, you can effectively diagnose and address the oil leak in your Chevrolet Sonic, ensuring your vehicle remains in optimal condition.

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

When dealing with oil leaks in a 2019 Chevrolet Sonic, it's essential to understand the common problems that may arise. One frequent issue is a worn or damaged oil pan gasket, which can lead to oil seepage as it deteriorates over time. Similarly, the valve cover gasket, which seals the valve cover to the cylinder head, can also fail, resulting in oil leaks. Another potential source of leaks is the oil filter housing gasket; if this component fails, it can allow oil to escape from the engine. Additionally, the rear main seal, located at the back of the engine, is crucial for preventing oil from leaking out as the crankshaft exits the engine. Lastly, oil cooler line leaks can occur, particularly at the connections or due to corrosion, leading to oil loss. By being aware of these common causes, DIY enthusiasts can take proactive steps to inspect and repair their vehicle, ensuring optimal performance and preventing further damage. Regular maintenance and timely inspections are key to catching these issues early.

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

Addressing an oil leak in your 2019 Chevrolet Sonic is not just a matter of routine maintenance; it is an urgent issue that requires immediate attention. Neglecting an oil leak can lead to a significant drop in oil levels, which compromises the lubrication of essential engine components, increasing the risk of severe damage over time. Furthermore, an oil leak can cause the engine to overheat, leading to costly repairs or even complete engine failure, which can be financially devastating. The safety implications are equally concerning, as leaking oil can drip onto hot engine parts, creating a fire hazard that endangers both the vehicle and its occupants. By regularly monitoring for oil leaks and addressing them promptly, you can ensure the optimal performance and longevity of your vehicle, making it crucial to act swiftly to mitigate these risks.

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2019 Chevrolet Sonic Oil Leak Causes & Repairs | RepairPal