INFINITI QX4 Is Leaking Oil

Discover the Common Causes of Oil Leaks in Your INFINITI QX4 and How to Address Them Effectively

Find Repair Location
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 INFINITI QX4 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 INFINITI QX4 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.

Troubleshooting Oil Leaks in an INFINITI QX4

When tackling oil leaks in your INFINITI QX4, begin with a systematic diagnostic approach that prioritizes simplicity. Start by thoroughly cleaning the area around the suspected leak to eliminate any old oil residue, which can obscure the source of the problem. Once the area is clean, use compressed air to dry it completely, allowing for a clearer view of any new leaks that may appear when you start the engine. As the vehicle runs, carefully observe for any signs of oil seeping from common culprits like the valve cover gasket or rear main seal. If you notice a leak, check that all valve cover screws are securely tightened, as loose screws can often lead to oil drips. For minor leaks, consider using high mileage oil with seal conditioners, which can help mitigate the issue without requiring extensive repairs. If the leak persists or if you are unable to identify its source, it may be time to consult a professional mechanic for a more in-depth diagnosis. By following this methodical approach, you can effectively address oil leaks and maintain the health of your vehicle.

How to Diagnose and Fix Oil Leaks in an INFINITI QX4?

When diagnosing and fixing oil leaks in your INFINITI QX4, it's essential to be aware of common problems that can arise. One frequent issue is the deterioration of gaskets and seals, which can lead to leaks around the valve cover or oil pan. Over time, these components can become brittle and lose their effectiveness, resulting in oil seeping out. Additionally, a loose or damaged oil drain plug can also be a culprit, as it may not create a proper seal, allowing oil to escape. Another common problem is a faulty oil filter; if the filter is not installed correctly or is damaged, it can lead to significant leaks. It's also important to consider the condition of the oil itself; old or contaminated oil can cause sludge buildup, which may exacerbate leaks. By understanding these common issues, you can more effectively diagnose the source of the leak and take the necessary steps to repair it, ensuring your vehicle remains in optimal condition.

How to Address an Oil Leak in an INFINITI QX4?

Addressing an oil leak in your INFINITI QX4 is crucial not only for the longevity of your vehicle but also for your safety on the road. Ignoring an oil leak can lead to severe engine damage, increased repair costs, and even hazardous driving conditions due to reduced lubrication. Start by identifying the source of the leak, as this will guide your repair efforts. A thorough inspection using a spray cleaner can help you pinpoint the exact location of the leak. If the issue stems from worn O-rings or seals, replacing them is a straightforward task that can be completed in about an hour, especially if you’re already changing the oil. However, if you find yourself uncertain about the source or the repair process, it’s wise to consult a professional. Timely action not only prevents further damage but also ensures your vehicle remains safe and reliable.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.