2017 Hyundai Sonata Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2017 Hyundai Sonata and How to Address Them Effectively

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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 2017 Hyundai Sonata 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 Hyundai Sonata 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 potential causes and diagnostic steps for an oil leak in a 2017 Hyundai Sonata?

When faced with an oil leak in your 2017 Hyundai Sonata, it's essential to adopt a systematic diagnostic approach. Start with a visual inspection under the vehicle to identify any obvious signs of oil pooling or dripping, which can provide immediate clues about the leak's location. Next, regularly check the oil level; a significant drop can indicate a leak that needs addressing. Pay close attention to the oil filter and drain plug, as these are common culprits for leaks—ensure they are secure and free from damage. If the source remains elusive, consider performing a pressure test to pressurize the oil system, which can help pinpoint the leak. For a more advanced method, adding UV dye to the oil can illuminate the leak's origin under UV light. Finally, inspect the gaskets and seals for wear or damage, as these components often degrade over time and can lead to leaks. By following this structured approach, you can effectively diagnose and address the oil leak, ensuring your Sonata remains in optimal condition.

What are the common causes of oil leaks in a 2017 Hyundai Sonata?

When dealing with oil leaks in a 2017 Hyundai Sonata, it's essential to understand the common culprits that may be at play. One frequent issue is a degraded or damaged oil pan gasket, which can deteriorate over time due to heat and exposure to oil, leading to leaks. Additionally, worn-out oil seals, particularly around critical engine components like the crankshaft and valve cover, can also contribute to oil leakage. Another area to inspect is the oil drain plug; if it is loose or damaged, it can allow oil to escape from the oil pan. Cracks in engine components, such as the engine block, can create significant leaks and should be addressed immediately. Lastly, overfilling the engine with oil can increase pressure and cause leaks, so it's crucial to maintain the correct oil level. By regularly inspecting these areas and addressing any issues promptly, DIYers can help maintain their Sonata's performance and prevent further damage.

How urgent is it to address the oil leak in my 2017 Hyundai Sonata to prevent potential engine damage?

Addressing an oil leak in your 2017 Hyundai Sonata is of utmost urgency to prevent severe engine damage and ensure your vehicle's safety. Oil plays a vital role in lubricating engine components, and a leak can lead to insufficient lubrication, resulting in increased friction and wear on critical parts. This not only diminishes engine performance but can also escalate into overheating, which poses a significant risk of warping engine components or even catastrophic engine failure. Moreover, oil leaks can create hazardous conditions, as oil dripping onto hot engine surfaces may ignite, leading to a fire risk. Regularly inspecting your vehicle for signs of oil leaks, such as puddles under the car or unusual smells, is essential for early detection. By addressing any leaks promptly, you can safeguard your engine's integrity and maintain the overall safety and functionality of your Sonata.

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