2013 Cadillac ATS Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2013 Cadillac ATS and How to Address Them Effectively

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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 2013 Cadillac ATS 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 2013 Cadillac ATS 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 are the steps to diagnose the oil leak in a 2013 Cadillac ATS?

To effectively diagnose an oil leak in your 2013 Cadillac ATS, start by locating the source of the leak. Begin with a thorough inspection of the engine bay and the area beneath the vehicle, looking for any visible oil stains or puddles that could indicate where the leak is originating. Next, check the oil level using the dipstick; a significant drop in oil level can confirm the presence of a leak. Pay close attention to the gaskets and seals around critical components such as the oil pan, valve cover, oil filter, and oil drain plug, as these areas are common culprits for leaks due to wear or damage. Additionally, inspect the oil filter itself for any signs of leakage or damage, and ensure it is properly tightened or replaced if necessary. Don’t forget to check the oil drain plug to confirm it is securely fastened, as a loose plug can also lead to oil loss. If the source of the leak remains elusive, consider performing a pressure test to help identify leaks in the oil lines or other components. Should you still be unable to pinpoint the issue, consulting a mechanic for a professional diagnosis is a wise choice to ensure your vehicle is properly repaired. By following this diagnostic approach, you can systematically address the problem and potentially save on repair costs.

What are the common causes of oil leaks in a 2013 Cadillac ATS?

When dealing with oil leaks in a 2013 Cadillac ATS, it's crucial to understand the common culprits that may be at play. One frequent issue is the deterioration of the oil pan gasket, which can wear out over time, leading to leaks. Similarly, the valve cover gasket, which seals the valve cover to the cylinder head, can also fail, resulting in oil seeping out. Another potential source of leaks is the oil filter housing gasket; if this component is faulty, it can allow oil to escape. Additionally, the rear main seal, located at the back of the engine, is prone to wear and can develop leaks as the vehicle ages. Lastly, oil cooler lines may also be a source of leaks due to wear and tear or physical damage. Addressing these issues promptly is essential not only for maintaining the performance of your Cadillac ATS but also for preventing further engine damage. Regular inspections and maintenance can help you catch these problems early, allowing for a more straightforward DIY repair process.

How urgent is it to address the oil leak in my 2013 Cadillac ATS?

Addressing an oil leak in your 2013 Cadillac ATS is not just a matter of routine maintenance; it is a critical issue that demands immediate attention. An oil leak can lead to a significant drop in oil levels, which compromises the engine's lubrication system, increasing the risk of severe engine damage over time. Furthermore, if left unchecked, the leak can cause the engine to overheat, potentially resulting in catastrophic mechanical failures that could leave you stranded or necessitate costly repairs. Beyond mechanical concerns, an oil leak poses a serious safety hazard; oil dripping onto hot engine components can ignite, leading to dangerous fire risks. Therefore, it is essential to prioritize the repair of any oil leaks to safeguard both your vehicle's performance and your personal safety.

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