2017 Toyota Corolla IM Is Leaking Oil

Address Oil Leaks in Your 2017 Toyota Corolla iM 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 2017 Toyota Corolla iM 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 Toyota Corolla iM 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 initial steps to diagnose an oil leak in a 2017 Toyota Corolla iM?

When diagnosing an oil leak in a 2017 Toyota Corolla iM, it's essential to adopt a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by locating the leak; inspect the area beneath your vehicle for any oil spots, which can help pinpoint the general source of the leak. Next, check the oil level using the dipstick; a significant drop may indicate a leak that needs immediate attention. Following this, inspect the engine bay for visible signs of oil around critical components such as the valve cover gasket, oil filter, oil pan, and drain plug. Additionally, examine the oil cooler lines and oil pressure sensor for any signs of leakage. If these initial steps do not reveal the source of the leak or if you suspect a more serious issue, it is wise to consult a mechanic for a thorough inspection and repair. By following this diagnostic approach, you can effectively identify and address oil leaks in your vehicle, ensuring its optimal performance.

What are the common causes of oil leaks in a 2017 Toyota Corolla iM?

When dealing with oil leaks in a 2017 Toyota Corolla iM, 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 significant leaks. Additionally, a faulty or improperly installed oil filter can also be a source of oil leakage, making it essential to ensure that the filter is correctly fitted during oil changes. Another area to inspect is the valve cover gasket, as it can wear out and cause oil to seep from the engine. Furthermore, issues with the oil drain plug, such as looseness or damage, can result in oil escaping from the oil pan. Lastly, a leak from the front crankshaft seal can lead to oil leaking from the front of the engine, which is another critical area to check. By being aware of these common causes, DIY enthusiasts can take proactive steps to diagnose and address oil leaks, ensuring their vehicle remains in optimal condition. Regular maintenance and thorough inspections are key to catching these issues early and preventing further engine damage.

How urgent is it to address the oil leak in my 2017 Toyota Corolla iM?

Addressing an oil leak in your 2017 Toyota Corolla iM is crucial for maintaining the vehicle's performance and longevity. Ignoring an oil leak can lead to a cascade of problems, including decreased oil levels that compromise engine lubrication, which is vital for preventing wear and tear on engine components. Over time, this neglect can escalate into severe issues such as engine overheating or even complete engine failure, resulting in costly repairs. Regularly checking your oil levels and promptly addressing any leaks not only safeguards your engine but also enhances your vehicle's overall health. While some DIY enthusiasts may feel confident in tackling minor repairs, it is often wise to consult a professional mechanic for a thorough inspection and repair of oil leaks. This proactive approach can save you from more significant headaches down the road, ensuring your Toyota Corolla iM remains reliable and efficient.

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