2018 Ford Transit-350 Is Leaking Oil

Address Oil Leaks in Your 2018 Ford Transit-350 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 2018 Ford Transit-350 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 2018 Ford Transit-350 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 2018 Ford Transit-350?

To effectively diagnose an oil leak in your 2018 Ford Transit-350, start with a systematic approach that prioritizes simplicity before delving into more complex diagnostics. Begin by locating the leak; check beneath the vehicle for any visible oil spots or drips, as this can provide immediate clues about the source. Next, inspect the engine components, focusing on areas like the oil pan, valve cover gasket, oil filter, and oil drain plug, as these are common culprits for leaks. It's also essential to check the oil level in the engine; a low level may indicate a significant leak that needs urgent attention. If the source remains elusive, consider performing a pressure test, which can help identify the exact location of the leak by pressurizing the oil system. Should these steps not yield results, consulting a qualified mechanic is advisable, as they possess the expertise and specialized tools necessary for a thorough diagnosis and repair. By following this structured diagnostic approach, you can efficiently identify and address oil leaks in your vehicle.

What are the common causes of oil leaks in a 2018 Ford Transit-350?

When diagnosing oil leaks in a 2018 Ford Transit-350, it's essential to recognize the common problems that may arise. A primary issue is a degraded or damaged oil pan gasket, which can deteriorate over time, leading to significant leaks. Additionally, a worn valve cover gasket can result in oil seepage, causing noticeable leaks around the engine. Another frequent concern is a faulty oil filter; if the filter is improperly installed or defective, it can easily lead to oil escaping. Furthermore, a damaged or improperly tightened oil drain plug can also be a source of leaks, as can cracked or worn engine seals that degrade with age. Addressing these issues promptly is crucial to prevent further engine damage and maintain the vehicle's performance. Regular maintenance checks can help identify these problems early, ensuring your Transit-350 remains in optimal condition.

How urgent is it to address the oil leak in a 2018 Ford Transit-350?

Addressing an oil leak in your 2018 Ford Transit-350 is not just a matter of routine maintenance; it is a pressing concern 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. This can cause increased friction, which may ultimately damage the engine. Moreover, oil leaks can create hazardous conditions, as oil dripping onto hot engine parts poses a fire risk. Continuing to drive with a leak can also lead to dangerously low oil levels, increasing the likelihood of engine overheating and catastrophic failure. By addressing the oil leak promptly, you not only safeguard your vehicle's performance but also prevent more extensive and costly repairs down the line. Therefore, if you notice any signs of an oil leak, it is crucial to act swiftly and consider consulting a professional mechanic to ensure the safety and efficiency of your Ford Transit-350.

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