2021 Hyundai Tucson Is Leaking Oil

Address Oil Leaks in Your 2021 Hyundai Tucson 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 2021 Hyundai Tucson 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 2021 Hyundai Tucson 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 2021 Hyundai Tucson?

When diagnosing an oil leak in your 2021 Hyundai Tucson, it's essential to adopt a systematic approach that begins with the most straightforward checks before progressing to more complex diagnostics. Start by locating the leak; inspect the area beneath your vehicle for any oil drips or stains, which can provide immediate clues about the leak's source. Next, check the oil level in your engine; a consistently low level may indicate a leak that needs addressing. Pay close attention to the oil filter and drain plug, ensuring they are securely tightened, as loose components can often lead to leaks. Additionally, examine the gaskets and seals around critical engine parts, such as the valve cover and oil pan, since worn or damaged gaskets are common culprits for oil leaks. If the source remains elusive, consider using UV dye in the engine oil, which can help pinpoint the leak when illuminated with a UV light. Should these steps not yield results, consulting a qualified mechanic is advisable for a thorough inspection and professional guidance. By following this diagnostic approach, you can effectively identify and address the oil leak in your Tucson, ensuring your vehicle remains in optimal condition.

What are the common causes of oil leaks in a 2021 Hyundai Tucson?

When dealing with oil leaks in a 2021 Hyundai Tucson, 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 leaks. Additionally, a faulty oil filter or its seal can also be a source of oil leakage, often manifesting as oil pooling around the filter area. Another area to inspect is the valve cover gasket; if this gasket is compromised, it can allow oil to escape from the engine. Furthermore, the oil drain plug should be checked for tightness and integrity, as a loose or damaged plug can result in significant oil loss. Lastly, be aware that cracks in engine components can also lead to leaks, although this is less common. Regular inspections and maintenance are key to catching these issues early, ensuring your Tucson runs smoothly and efficiently.

How urgent is it to address the oil leak in my 2021 Hyundai Tucson?

Addressing an oil leak in your 2021 Hyundai Tucson is not just a matter of routine maintenance; it is a pressing concern that requires immediate attention. An oil leak can significantly reduce oil levels, leading to inadequate lubrication of engine components, which may result in severe engine damage over time. Furthermore, neglecting this issue can escalate into more serious problems, such as engine overheating or even catastrophic engine failure, which can be costly to repair. Additionally, the safety risks associated with oil leaks cannot be overlooked; oil dripping onto hot engine parts poses a fire hazard, endangering both the vehicle and its occupants. By regularly monitoring for leaks and addressing them promptly, you can maintain your vehicle's performance and longevity, ensuring a safer driving experience. Therefore, if you notice any signs of an oil leak, it is crucial to take action immediately to prevent further damage and safeguard your vehicle's reliability.

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