2024 Toyota Grand Highlander Is Leaking Oil

Resolve oil leaks in your 2024 Toyota Grand Highlander for optimal SUV performance.

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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 2024 Toyota Grand Highlander 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.

What are the steps to diagnose an oil leak in a 2024 Toyota Grand Highlander?

To effectively diagnose an oil leak in your 2024 Toyota Grand Highlander, start by locating the leak, which often begins with a visual inspection under the vehicle. Look for oil spots on the ground, as these can indicate the leak's source. Next, check the oil level in the engine; a significant drop may suggest a leak. Pay close attention to the oil filter and drain plug, as these components can sometimes be the culprits behind leaks due to looseness or damage. Additionally, inspect the gaskets and seals within the engine for any signs of wear or deterioration. If the source remains elusive, consider adding UV dye to the engine oil and running the engine; the dye will illuminate under UV light, helping you pinpoint the leak. For a more thorough investigation, a pressure test on the oil system can reveal hidden leaks. If these steps do not yield results or if the situation appears complicated, consulting a mechanic is advisable for a professional assessment and repair. This systematic approach not only helps in identifying the issue but also ensures that you tackle simpler fixes before moving on to more complex diagnostics.

What are the common causes of oil leaks in a 2024 Toyota Grand Highlander?

When diagnosing oil leaks in a 2024 Toyota Grand Highlander, it's essential to understand the common problems that may arise. One frequent issue is a degraded or damaged oil pan gasket, which can lead to oil seepage over time. Additionally, worn-out oil seals, such as those found around the crankshaft or camshaft, can also contribute to leaks as they lose their effectiveness. Another area to inspect is the oil filter; if it is loose or damaged, it can easily allow oil to escape. The valve cover gasket is another critical component that can deteriorate, resulting in leaks as it seals the valve cover to the engine block. Lastly, be vigilant for any cracks in engine components like the engine block or cylinder head, as these can also be significant sources of oil leaks. Addressing these issues promptly is crucial to maintaining your vehicle's performance and preventing further damage, making regular inspections and maintenance a vital part of vehicle care.

How urgent is it to address the oil leak in my 2024 Toyota Grand Highlander?

Addressing an oil leak in your 2024 Toyota Grand Highlander is not just a matter of routine maintenance; it is an urgent issue that requires immediate attention. Oil is vital for lubricating engine components, and a leak can lead to a significant loss of oil, resulting in inadequate lubrication that may cause severe engine damage. Moreover, the presence of leaking oil creates a fire hazard, especially if it comes into contact with hot engine parts. Ignoring this issue can exacerbate the problem, leading to more extensive damage and costly repairs down the line. By prioritizing the repair of an oil leak, you not only safeguard your vehicle's performance and longevity but also ensure your safety on the road. Therefore, if you notice any signs of an oil leak, it is crucial to act swiftly to mitigate these risks.

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