2012 Toyota Corolla Engine Making Ticking Noise

Common Causes of Ticking Noises in Your 2012 Toyota Corolla Engine and How to Address Them

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
12% chance it's the
Exhaust Leak
0%
88% chance it's
Something else
The most common reasons a 2012 Toyota Corolla engine makes a ticking noise are low oil level or pressure, an issue with the ignition system, or an exhaust leak.
  • Exhaust Leak: A damaged exhaust manifold or a loose connection in the exhaust system can cause an exhaust leak, resulting in increased noise and potential loss of engine power.
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 2012 Toyota Corolla engine makes a ticking noise?

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.

An engine leaking oil does not always make a puddle on the ground. A burning smell may be noticed from the front of the vehicle after driving. This is because engine oil leaks may fall onto hot engine components, especially the exhaust manifold, and burn off before making it to the ground. This poses a risk to the engine because the leak going unnoticed may deplete the engine oil reserve, and lead to an oil starvation issue. Some engine oil leaks only occur while the engine is running, so the leak may be larger than the small spot on the ground makes it seem.

Noises can be accompanied by many annoying or worrisome sensations. Consider the noise of grinding brakes, the noise sounds much like the brake pedal and steering wheel feel. This is important, as random noises can be difficult to replicate without knowing when the sound occurs, what must be done to make the sound, and what sound it is. Any professional technician can replicate and diagnose most noises, but to ensure the vehicle is more quickly diagnosed, make sure you tell your technician these three pieces of information.

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 initial diagnostic steps to take for a ticking noise in a 2012 Toyota Corolla's engine?

When faced with a ticking noise in your 2012 Toyota Corolla's engine, it's essential to adopt a systematic diagnostic approach. Start by checking the oil levels and condition, as low oil or dirty oil is a common culprit for engine noises. Ensure the oil is at the recommended level on the dipstick and consider changing it if it appears old or contaminated. Next, verify the oil pressure using the gauge, as low pressure can indicate issues with the oil pump or circulation. If the oil levels and pressure are satisfactory, inspect the valvetrain for potential problems, such as worn lifters, which can be identified using a mechanic's stethoscope. Additionally, consider the timing chain; a loose or worn chain can produce ticking sounds that vary with engine speed. If the noise persists, experimenting with a thicker oil may provide better lubrication and reduce the sound. Pay close attention to the noise's behavior—whether it changes with temperature or engine load can offer valuable clues. If these steps do not resolve the issue, consulting a professional mechanic is advisable for a thorough diagnosis. By following this structured approach, you can effectively identify the source of the ticking noise and take appropriate action.

What are the common causes of a ticking noise in the engine of a 2012 Toyota Corolla?

When dealing with a ticking noise in the engine of a 2012 Toyota Corolla, it's essential to understand the common problems that could be at play. One of the primary culprits is a low engine oil level, which can lead to insufficient lubrication and increased friction between metal components, resulting in a ticking sound. Additionally, natural wear and tear on engine parts, particularly the valvetrain and fuel injectors, can produce similar noises as these components age and experience extensive movement. Valvetrain issues, such as lifter noise or varnish buildup on the valves, are also frequent causes, especially in higher mileage vehicles. Another potential source of the ticking could be a loose or cracked spark plug, which can disrupt the engine's normal operation. Furthermore, timing chain problems, including slack or wear on the chain guides, may contribute to the noise, particularly in older engines. It's also worth considering oil pump or filter issues, as a malfunctioning oil pump or a clogged filter can lead to reduced oil pressure and subsequent ticking. Lastly, while less common, exhaust leaks from the exhaust manifold can manifest as ticking sounds, often accompanied by other performance-related symptoms. By observing the conditions under which the noise occurs and consulting with a professional mechanic if necessary, DIY enthusiasts can effectively diagnose and address these common issues.

How urgent is it to address the ticking noise in the engine of a 2012 Toyota Corolla?

When you hear a ticking noise in the engine of your 2012 Toyota Corolla, it’s crucial to assess the urgency of the situation based on the underlying cause. If the noise stems from low oil levels or inadequate oil pressure, immediate action is necessary, as neglecting this can lead to severe engine damage, including overheating and excessive wear on vital components. Similarly, if the ticking is linked to valvetrain problems, such as worn lifters, it’s essential to address it quickly to avoid further mechanical failure. Timing chain issues also warrant prompt attention, as a slack or worn chain can result in catastrophic engine failure if it breaks. On the other hand, if the noise is attributed to the EVAP purge valve, it may not require urgent repair, but it should still be monitored to prevent future complications. Regular maintenance and timely inspections are key to identifying these issues early, ensuring your vehicle remains safe and reliable. Therefore, if you notice a ticking noise, it’s best to investigate the cause without delay to safeguard your engine’s health and performance.

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2012 Toyota Corolla Engine Ticking Noise: Causes & Repairs