INFINITI G37 Engine Makes A Ticking Noise

Common Causes of Ticking Noises in Your INFINITI G37 Engine and How to Address Them

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
12% chance it's the
Exhaust Leak
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88% chance it's
Something else
The most common reasons a INFINITI G37 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 INFINITI G37 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.

If the drive belt idler pulley fails, there will be a very audible chirping noise from the front of the engine. This is because the idler pulley bearing is no longer smooth, and rotating causes metal to grind at high speeds. If it is not changed immediately, there is a chance it will become dislodged, or allow the drive belt to slip off. If the belt falls off, the accessory that it drives will no longer function. For instance, if the alternator belt idler pulley fails, the alternator may stop functioning. Also if the pulley begins to wobble, allowing slack in the belt, it will make an extremely loud squeaking or screeching noise, especially on cold starts. This is the belt slipping on the crankshaft pulley, and will require belt replacement once the idler pulley is replaced.

If the drive belt tensioner fails, there will be a very audible chirping, grinding, or rattling noise from the front of the engine. This is because the tensioner pulley bearing is no longer smooth, and rotating causes metal to grind at high speeds. If it is not changed immediately, there is a chance it will become dislodged, or allow the drive belt to lose tension, or break. If the belt falls off, the accessory that it drives will no longer function. Also, if the tensioner spring fails, allowing slack in the belt, it may make an extremely loud squeaking or screeching noise combined with a rattle as the tensioner bounces back and forth under load. The squealing noise is the belt slipping on the crankshaft pulley, and will require belt replacement once the belt tensioner is replaced.

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.

Troubleshooting Ticking Noise in an INFINITI G37

When faced with a ticking noise in your INFINITI G37, start by checking the oil level and quality, as low oil can lead to insufficient lubrication and cause engine ticking. If the oil level is adequate, inspect the ignition system for any signs of wear or malfunction, as issues here can also produce similar sounds. Next, examine the exhaust system for leaks, which can create a ticking noise due to escaping gases. If the noise persists, particularly from the cam area on the passenger side, it may indicate a problem with the cam phaser or its components, necessitating a more in-depth inspection. Be vigilant for any glittery oil, as this could signal internal engine damage, requiring immediate attention. By following this diagnostic approach, you can effectively identify and address the source of the ticking noise, ensuring your vehicle remains in optimal condition.

What Could Cause a Ticking Noise in an INFINITI G37 Engine?

When you hear a ticking noise in your INFINITI G37 engine, it’s crucial to understand the common problems that could be causing this sound. One of the primary culprits is low oil level or pressure, which can lead to insufficient lubrication of engine components, resulting in a ticking sound. Additionally, issues with the ignition system, such as faulty spark plugs or ignition coils, can also manifest as ticking noises, indicating that the engine is not firing correctly. Another potential source of the ticking could be an exhaust leak, which can create a distinct ticking sound as exhaust gases escape from the system. While some of these issues may be straightforward to address, such as topping off oil or replacing spark plugs, others may require more in-depth mechanical knowledge. Therefore, if you encounter a persistent ticking noise, it’s advisable to conduct a thorough inspection or consult a professional to prevent further damage to your engine.

Why is it Urgent to Address a Ticking Noise in an INFINITI G37?

Addressing a ticking noise in your INFINITI G37 is not just a matter of convenience; it is a critical step in ensuring the vehicle's performance and safety. Ignoring this sound can lead to serious mechanical issues, such as inadequate lubrication due to low oil levels or pressure, which can cause increased friction and overheating of engine components. Additionally, problems with the ignition system may arise, leading to misfires and difficulties in starting the vehicle. An exhaust leak is another concern, as it can allow harmful gases to enter the cabin, posing health risks to passengers. Furthermore, a failing drive belt idler pulley can create a chirping noise that, if left unchecked, may result in belt slippage and affect the operation of essential engine parts. By addressing the ticking noise promptly, you not only prevent further damage and costly repairs but also ensure the safety and reliability of your vehicle on the road. Therefore, if you hear a ticking sound, it is crucial to investigate the source and take appropriate action to maintain the longevity and performance of your INFINITI G37.

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