2016 Chevrolet Impala Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2016 Chevrolet Impala and How to Fix Them Effectively

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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 2016 Chevrolet Impala 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 2016 Chevrolet Impala 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.

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 steps should I take to diagnose the oil leak in my 2016 Chevrolet Impala?

When diagnosing an oil leak in your 2016 Chevrolet Impala, it's essential to adopt a systematic approach that begins with the most straightforward checks before progressing to more complex diagnostics. Start by locating the leak; inspect the area beneath your vehicle for any oil drips or stains, which can provide immediate clues about the leak's origin. Next, check the oil level in the engine; a consistently low level may indicate a leak that needs addressing. Pay close attention to the oil filter and drain plug, ensuring they are secure and free from damage, as these are common culprits for leaks. Additionally, examine the gaskets and seals, particularly around the valve cover and oil pan, for signs of wear or deterioration. If the source remains elusive, consider using UV dye in the oil, which can help highlight leaks under a UV light. For a more thorough investigation, a pressure test of the oil system can pinpoint the leak's exact location. If these steps do not yield results or if you feel uncomfortable proceeding, consulting a mechanic is advisable, as they can provide expert insights and solutions for your vehicle's oil leak issue. By following this diagnostic approach, you can effectively identify and address the oil leak in your Impala, ensuring your vehicle remains in optimal condition.

What are the common causes of oil leaks in a 2016 Chevrolet Impala?

When diagnosing oil leaks in a 2016 Chevrolet Impala, it's essential 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 due to heat and exposure, leading to leaks. Additionally, a faulty oil filter can also be a source of leaks, as improper sealing or damage can allow oil to escape from the engine. Another area to inspect is the valve cover gasket; if this component wears out, it can result in oil seeping out, creating a mess under the hood. Furthermore, pay attention to the oil drain plug, as loose or damaged plugs can lead to significant oil loss from the oil pan. Lastly, a leak in the rear main seal is another potential issue that can cause oil to leak, often requiring more extensive repairs. By identifying these common problems, DIYers can take proactive steps to address oil leaks and maintain the health of their Impala's engine.

How urgent is it to address the oil leak in my 2016 Chevrolet Impala to prevent potential engine damage?

Addressing an oil leak in your 2016 Chevrolet Impala is not just a matter of routine maintenance; it is a critical step in safeguarding your engine's health. Oil plays a vital role in lubricating engine components, and a leak can lead to dangerously low oil levels, resulting in increased friction and overheating. This can escalate into severe engine damage or even complete failure if left unchecked. Moreover, an oil leak can contaminate other essential parts, such as spark plugs, which can compromise your vehicle's performance and efficiency. Regularly checking your oil levels and promptly addressing any leaks is essential for maintaining your vehicle's longevity and reliability. Therefore, if you notice any signs of an oil leak, it is imperative to act quickly and consider consulting a qualified mechanic to prevent costly repairs down the line.

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