2011 Acura TSX Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2011 Acura TSX 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 2011 Acura TSX 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 2011 Acura TSX 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 steps should I take to diagnose the oil leak in my 2011 Acura TSX?

To effectively diagnose the oil leak in your 2011 Acura TSX, start with a thorough visual inspection of the engine bay, focusing on areas prone to leaks, such as the lower left side near the crankshaft pulley. This initial step can help you identify any obvious signs of oil leakage. Next, examine the oil system components, particularly the oil pressure sensor, as these can often be culprits in oil leaks. Pay close attention to the engine gaskets, as they are common sources of leaks; any signs of wear or damage here should be noted. Additionally, check for drips originating from behind the crank pulley, since oil leaking from the front main seal can be flung upward by the pulley, making it appear as if the leak is coming from a different location. Lastly, if you've recently changed the oil filter, verify that it was installed correctly and torqued to the manufacturer's specifications, as a loose or improperly fitted filter can lead to leaks. By following this diagnostic approach, you can systematically identify the source of the oil leak and take the necessary steps for repair.

What are the common causes of oil leaks in a 2011 Acura TSX?

When diagnosing oil leaks in a 2011 Acura TSX, 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 and lead to significant leaks. Similarly, the valve cover gasket is another area prone to wear, often resulting in oil escaping from the engine. Additionally, the oil filter housing gasket can fail, causing leaks in the engine bay that may be mistaken for other issues. Another potential source of oil leaks is the rear main seal, located at the back of the engine, which can develop leaks as the vehicle ages. Lastly, the seals around the oil cooler can also deteriorate, contributing to oil seepage in the engine compartment. Addressing these leaks promptly is essential to prevent further engine damage and ensure optimal vehicle performance. Regular inspections and maintenance can help you catch these issues early, allowing for a more straightforward DIY repair process.

How urgent is it to address the oil leak in my 2011 Acura TSX?

Addressing an oil leak in your 2011 Acura TSX is not just a matter of routine maintenance; it is a critical issue that demands immediate attention. An oil leak can lead to insufficient lubrication of engine components, which increases friction and can result in severe engine damage over time. Additionally, a loss of oil can cause dangerously low oil levels, leading to overheating and potentially catastrophic engine failure. The risk of fire is another serious concern, as leaking oil can drip onto hot engine parts, creating a hazardous situation. Furthermore, neglecting an oil leak can have environmental repercussions, as spilled oil can contaminate soil and water sources. Given these significant risks, it is essential to prioritize the inspection and repair of any oil leaks in your vehicle to ensure safety, maintain engine health, and protect the environment.

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2011 Acura TSX Leaking Oil: Causes & Repair Estimates