2018 Buick Regal TourX Engine Makes A Ticking Noise

Common Causes of Ticking Noises in Your 2018 Buick Regal TourX 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
0%
88% chance it's
Something else
The most common reasons a 2018 Buick Regal TourX 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 2018 Buick Regal TourX 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 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.

What are the potential causes of a ticking noise in the engine of a 2018 Buick Regal TourX, and how should I diagnose them?

When faced with a ticking noise in the engine of your 2018 Buick Regal TourX, it's essential to adopt a systematic diagnostic approach to identify the root cause effectively. Start by checking the engine oil level, as low oil can lead to inadequate lubrication of engine components, resulting in ticking sounds. If the oil level is sufficient, listen carefully to determine the noise's origin, as different engine components produce distinct sounds. Next, consider the condition of the lifters; worn or faulty lifters can create ticking noises due to their role in valve movement. Additionally, inspect the timing chain for any signs of wear or looseness, as a malfunctioning timing chain can also contribute to the noise. Don't overlook the possibility of an exhaust leak, which can mimic a ticking sound, so examine the exhaust system for any damage. Lastly, if the noise persists, check for spark knock, which may arise from incorrect fuel octane or ignition issues. If these initial checks do not resolve the problem, using an OBD-II scanner to read any error codes can provide further insights. Should you still be unable to diagnose the issue, consulting a qualified mechanic is advisable, as they possess the expertise and tools necessary for a thorough inspection. By following this structured approach, you can effectively narrow down the potential causes of the ticking noise and take appropriate action.

What could be causing the ticking noise in the engine of a 2018 Buick Regal TourX?

When diagnosing the ticking noise in the engine of a 2018 Buick Regal TourX, it's essential to explore several common problems that could be contributing to the issue. A low oil level is often a primary suspect, as insufficient lubrication can lead to increased friction among engine components, resulting in noticeable noise. Additionally, valve train issues, such as worn lifters or valves, can manifest as a distinct ticking sound, signaling the need for attention. Another potential source of the noise is a malfunctioning timing chain tensioner, which may fail to keep the timing chain properly tensioned, leading to irregular sounds during operation. It's also wise to inspect for exhaust leaks, as these can produce ticking or tapping noises that may be confused with engine malfunctions. Lastly, spark knock, or pre-ignition, can occur due to improper combustion timing, contributing to the ticking noise. While these issues are common, it's recommended to seek the expertise of a qualified mechanic for a comprehensive inspection to accurately diagnose and address the specific cause of the ticking noise in your vehicle.

How urgent is it to address the ticking noise in the engine of a 2018 Buick Regal TourX?

Addressing a ticking noise in the engine of a 2018 Buick Regal TourX is not just a matter of convenience; it is a critical step in ensuring the longevity and safety of your vehicle. Ignoring this symptom can lead to severe consequences, including extensive engine damage and costly repairs. Early detection is key, as identifying the source of the noise can prevent further deterioration of engine components, which might otherwise escalate into a more significant issue. Moreover, maintaining your vehicle's performance through preventive maintenance is essential for a smooth driving experience. Safety should also be a top priority; a malfunctioning engine can pose serious risks while on the road. For those considering a DIY approach, it is advisable to conduct a thorough inspection or consult with a qualified mechanic to accurately diagnose the problem. Taking prompt action not only safeguards your investment but also ensures the safety of you and your passengers.

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