2019 Toyota Yaris Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2019 Toyota Yaris and How to Address 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 2019 Toyota Yaris 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 Toyota Yaris 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 steps should I take to diagnose the oil leak in my 2019 Toyota Yaris?

To effectively diagnose an oil leak in your 2019 Toyota Yaris, begin with a thorough visual inspection of the engine components, focusing on areas like the oil pan, oil filter, and valve cover gasket, as these are common leak points. Ensure your vehicle is parked on a level surface to facilitate a clear view. Next, check the oil level using the dipstick; a significant drop may indicate a leak that needs addressing. Pay close attention to the oil filter and drain plug, as these can sometimes loosen over time, leading to leaks. Additionally, look for oil stains on the ground where you typically park, as these can provide clues about the leak's origin. For a more precise diagnosis, consider adding UV dye to the engine oil, which can help illuminate the leak under UV light. If these steps do not reveal the source of the leak or if the problem persists, it may be wise to consult a professional mechanic for further evaluation and repair. By following this systematic approach, you can effectively identify and address the oil leak in your vehicle.

What are the common causes of oil leaks in a 2019 Toyota Yaris?

When dealing with oil leaks in a 2019 Toyota Yaris, it's crucial to understand the common culprits that may be at play. One frequent issue is a degraded or damaged oil pan gasket, which can wear out over time and lead to leaks. Additionally, the valve cover gasket is another area to inspect, as it can deteriorate and allow oil to escape from the top of the engine. It's also important to check the oil filter and its housing gasket, as a faulty filter can contribute to leaks. Furthermore, damaged oil cooler lines can create issues if they are not properly sealed, leading to oil loss. Lastly, a loose or damaged drain plug can be a simple yet significant source of leaks. By regularly inspecting these components and addressing any signs of wear or damage, DIY enthusiasts can effectively manage oil leaks and maintain the health of their Yaris.

How urgent is it to address the oil leak in a 2019 Toyota Yaris?

Addressing an oil leak in your 2019 Toyota Yaris is not just a matter of routine maintenance; it is a pressing concern 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 increased friction, leading to severe engine damage over time. Moreover, an oil leak can cause the engine to overheat, potentially resulting in costly repairs or even complete engine failure. The safety implications are equally alarming, as leaking oil can drip onto hot engine parts, creating a fire hazard. By regularly monitoring for oil leaks and addressing them promptly, you can ensure the longevity and reliability of your vehicle. Therefore, if you notice any signs of an oil leak, it is crucial to act swiftly to prevent further damage and maintain the optimal performance of your Yaris.

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