2018 Chevrolet Volt Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2018 Chevrolet Volt and How to Address 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 2018 Chevrolet Volt 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 Chevrolet Volt 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.

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 potential causes and diagnostic steps for an oil leak in a 2018 Chevrolet Volt?

When faced with an oil leak in your 2018 Chevrolet Volt, it's essential to adopt a systematic diagnostic approach to identify the root cause effectively. Start with a thorough visual inspection under the vehicle to spot any obvious signs of oil pooling or dripping. Next, monitor your oil levels closely; a significant drop can indicate a leak that needs immediate attention. Inspecting gaskets and seals is crucial, as worn or damaged components are common culprits for oil leaks. Ensure that the oil drain plug is securely tightened, as a loose plug can lead to oil loss. Additionally, examine the oil pan for cracks and check the oil filter for any signs of leakage. Don’t overlook the oil cooler lines and the valve cover gasket, as these areas can also contribute to oil leaks if they are damaged or degraded. By following this methodical approach, you can effectively diagnose and address the oil leak, ensuring your vehicle remains in optimal condition.

What are the common causes of oil leakage in a 2018 Chevrolet Volt?

When dealing with oil leakage in a 2018 Chevrolet Volt, it's crucial to understand the common culprits that may be at play. One frequent issue is a degraded or damaged oil pan gasket, which can wear out over time and lead to leaks. Additionally, a faulty oil filter can also be a source of oil leakage, as it may fail to contain the oil properly. Another potential problem is a loose or damaged drain plug; if this component is not secured correctly, it can result in significant oil loss. Furthermore, the valve cover gasket is prone to deterioration with age, which can cause oil to seep from the engine. Lastly, cracked or damaged oil cooler lines can also contribute to oil leaks, compromising the vehicle's performance. By being aware of these common issues, DIY enthusiasts can take proactive steps to inspect and resolve oil leakage problems, ensuring their Chevrolet Volt remains in optimal condition. Regular maintenance and timely inspections are key to preventing further damage and maintaining engine health.

How urgent is it to address an oil leak in a 2018 Chevrolet Volt?

When dealing with an oil leak in a 2018 Chevrolet Volt, understanding the urgency of the situation is crucial for any DIY enthusiast. The severity of the leak plays a significant role in determining how quickly you should act; a minor leak might seem manageable, but even small leaks can escalate into major issues if left unattended. An oil leak not only compromises the lubrication of engine components, leading to potential overheating and reduced performance, but it also raises serious safety concerns. Oil that seeps onto hot engine parts can create a fire hazard, making it imperative to address the issue promptly. Moreover, neglecting an oil leak can result in extensive damage to the engine, ultimately leading to costly repairs that could have been avoided with timely intervention. Therefore, whether you're a seasoned DIYer or a novice, it's essential to prioritize the repair of any oil leak to ensure the safety and longevity of your Chevrolet Volt.

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2018 Chevrolet Volt Oil Leak Causes & Repair Costs