2021 Ford F-150 Is Leaking Oil

Common Causes of Oil Leaks in Your 2021 Ford F-150 and How to Fix Them Effectively

Find Repair Location
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 2021 Ford F-150 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 2021 Ford F-150 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.

What are the first steps to diagnose an oil leak in a 2021 Ford F-150?

When tackling an oil leak in your 2021 Ford F-150, start by locating the leak, which is crucial for effective diagnosis. Look beneath the vehicle for any oil spots or puddles, and check the engine bay for oil accumulation. Once you have a general idea of where the leak might be coming from, check the oil level to ensure it’s not critically low, as this could indicate a significant leak that requires immediate attention. Next, inspect the oil filter and drain plug for any signs of looseness or leakage; tightening the drain plug or replacing a damaged oil filter can often resolve minor issues. Don’t overlook the gaskets and seals around engine components, as wear and tear can lead to leaks at these points. Additionally, examine the oil pressure sensor for any signs of seepage. If the source remains elusive, consider adding UV dye to the engine oil and running the engine; this will illuminate the leak under UV light, making it easier to pinpoint. By following these steps, you can systematically diagnose the oil leak and take the necessary actions to fix it.

What are the common causes of an oil leak in a 2021 Ford F-150?

When diagnosing an oil leak in a 2021 Ford F-150, it's crucial to understand the common problems that may be at play. One frequent culprit is a worn or damaged oil pan gasket, which can deteriorate over time and lead to leaks. Additionally, a loose or damaged oil drain plug can allow oil to escape from the oil pan, so checking its tightness and condition is essential. Another area to inspect is the oil filter; if it is faulty or improperly installed, it can also result in leaks. Furthermore, the valve cover gasket, which seals the valve cover to the engine, may wear out and cause oil to seep. Lastly, don't overlook the oil cooler lines, as leaks in these lines can contribute to oil loss as well. By being aware of these potential issues, DIYers can take proactive steps to identify and address oil leaks, ensuring their Ford F-150 remains in optimal working condition. Regular maintenance and thorough inspections are key to preventing these problems from escalating.

How urgent is it to address the oil leak in a 2021 Ford F-150?

When it comes to your 2021 Ford F-150, the urgency of addressing an oil leak cannot be overstated. An oil leak not only compromises the engine's lubrication, leading to increased friction and potential damage, but it also risks significant engine overheating due to low oil levels. This situation can escalate quickly, resulting in costly repairs or even complete engine failure. Moreover, oil that drips onto hot engine components poses a serious fire hazard, endangering both the vehicle and its occupants. Beyond safety concerns, neglecting an oil leak can have detrimental effects on the environment, as spilled oil can contaminate soil and water sources. Therefore, it is imperative to act swiftly and address any signs of an oil leak to ensure the safety, performance, and longevity of your Ford F-150.

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.