2017 Lexus ES350 Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2017 Lexus ES350 and How to Address Them Effectively

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Reviewed by
Aisha
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 Lexus ES350 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 Lexus ES350 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

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 are the steps to diagnose the oil leak in a 2017 Lexus ES350?

To effectively diagnose an oil leak in your 2017 Lexus ES350, start by visually inspecting the engine bay and the area beneath the vehicle. Look closely around the oil pan, oil filter, and drain plug, as these are common leak points. Next, check the oil level; a significant drop may indicate a leak that needs immediate attention. Pay special attention to the oil filter and drain plug, ensuring they are securely tightened and free from oil residue. Additionally, examine the gaskets and seals for any signs of wear or damage, as these can often be culprits in oil leaks. For a more thorough investigation, consider adding UV dye to the engine oil and using a UV light to identify the leak's source, as the dye will illuminate under the light. If the leak remains elusive, performing a pressure test on the oil system can help pinpoint the issue. Should these methods not yield results, consulting a professional mechanic is advisable for a comprehensive diagnosis and repair. By following this structured approach, you can efficiently identify and address oil leaks in your vehicle.

What are the common causes of oil leaks in a 2017 Lexus ES350?

When dealing with oil leaks in a 2017 Lexus ES350, 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, worn valve cover gaskets are another common source of oil leakage, often found at the top of the engine where they can deteriorate. The oil filter housing gasket can also be a problem; if it becomes faulty, it may result in oil leaks near the oil filter area. Furthermore, leaking oil cooler lines can contribute to oil loss, especially if they are damaged or worn. Lastly, cracked or damaged oil seals, such as those found around the crankshaft or camshaft, can lead to significant leaks. Addressing these issues promptly is essential not only for maintaining engine performance but also for preventing further damage. Regular inspections and maintenance can help you catch these problems early, ensuring your Lexus runs smoothly.

How urgent is it to address the oil leak in my 2017 Lexus ES350?

Addressing an oil leak in your 2017 Lexus ES350 is not just a matter of routine maintenance; it is an urgent issue 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 accelerated wear and tear, and ultimately, severe engine damage. Moreover, the risks extend beyond mechanical failure; an oil leak can create hazardous conditions, as oil dripping onto hot engine parts poses a fire risk. Therefore, it is crucial to act swiftly to diagnose and repair any oil leaks to safeguard your vehicle's performance and ensure your safety on the road. Taking prompt action not only prevents costly repairs down the line but also maintains the integrity and reliability of your Lexus ES350.

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