2019 Buick Regal TourX Is Leaking Oil

Address Oil Leaks in Your 2019 Buick Regal TourX 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 Buick Regal TourX 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 Buick Regal TourX 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.

A bad oil level sensor may cause a false reading of the engine oil level. The oil level warning light may illuminate even when the oil level (checked manually) is within an acceptable range. The warning light may also come on and off intermittently if the sensor is faulty. An error code may be sent to the PCM and a check engine light may come on the dashboard as well if the sensor is bad.

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 Buick Regal TourX?

To effectively diagnose an oil leak in your 2019 Buick Regal TourX, begin with a systematic approach that prioritizes simplicity and thoroughness. Start by locating the leak; check beneath the vehicle for any visible oil spots or puddles, as this can provide immediate clues about the leak's origin. Next, inspect the oil pan for any cracks or damage, as this is a common source of leaks. Don’t overlook the oil filter; ensure it is properly secured and free from any signs of leakage. The oil drain plug should also be checked to confirm it is tightly fastened. Additionally, examine the gaskets and seals around critical engine components, such as the valve cover and oil pan, for wear or damage that could lead to leaks. Look for any oil splatters on the engine, which can help trace the leak back to its source. Finally, monitor your oil levels over time to identify any significant drops, which can further assist in pinpointing the leak's location. By following this diagnostic approach, you can efficiently identify and address the oil leak in your vehicle.

What are the common causes of oil leaks in a 2019 Buick Regal TourX?

When dealing with oil leaks in a 2019 Buick Regal TourX, 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 and lead to significant leaks. Similarly, a worn-out valve cover gasket can also contribute to oil escaping from the engine, making it crucial to inspect this component regularly. Additionally, problems with the oil filter or its housing gasket can result in leaks, so checking for any signs of wear or improper installation is advisable. Another area to examine is the oil cooler lines; if these lines are damaged or worn, they can easily leak oil, compromising the vehicle's performance. Lastly, don't overlook the oil drain plug; a loose or damaged plug can be a simple yet common source of oil leaks. By being proactive and conducting regular maintenance checks, DIY enthusiasts can effectively identify and resolve these issues, ensuring their Buick Regal TourX remains in optimal condition.

How urgent is it to address the oil leak in a 2019 Buick Regal TourX?

When dealing with an oil leak in a 2019 Buick Regal TourX, understanding the urgency of the situation is crucial for any DIY enthusiast. The severity of the leak plays a significant role; a minor leak may seem manageable, but even small leaks can escalate quickly, leading to substantial oil loss and potential engine damage. Oil is vital for lubricating engine components, and a leak can compromise this lubrication, resulting in increased friction and wear over time. Moreover, safety should never be overlooked; oil leaks can create hazardous conditions, such as slippery roads or the risk of fire if oil drips onto hot engine parts. Addressing the leak promptly not only safeguards your vehicle's performance but also protects your safety and that of others on the road. Additionally, delaying repairs can lead to more extensive damage, ultimately increasing repair costs. Therefore, it is advisable to assess and address any oil leak as soon as possible to maintain your vehicle's integrity and ensure a safe driving experience.

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