Loud Exhaust: 5 Common Reasons & Solutions

loud exhaust

Your exhaust plays a critical role in your vehicle. It reduces harmful emissions directing fumes out of the cabin, reduces the noise your vehicle makes, and helps your engine run efficiently. If your exhaust is not functioning properly, it will affect your vehicle’s performance in many ways. For example, if you notice any additional noise from your exhaust, it should be a cause of concern. Here are some of the most common causes of loud exhaust: 

Hole in the muffler 

When there is a hole in the muffler, it makes a high-pitched whistling noise. A hole in the muffler is a very serious problem as it can cause exhaust fumes to enter the cabin. These fumes contain carbon monoxide, which is a poisonous gas and can make you sick. A hole in the exhaust should be fixed promptly.  

Tailpipe backfires 

Any sputters, or backfires from the tailpipe should never be ignored. These noises indicate a problem with the engine tuning and not with the exhaust system. So, your mechanic will have to look under the hood to pinpoint the problem.  

Corrosion in silencer or tailpipe 

The silencer is usually the first part of the exhaust system that can develop corrosion and holes. It is farthest from the engine and remains relatively cold, which allows gases to condense into vapor. These liquids can lead to corrosion. Environmental factors such as rain and snow can also cause corrosion. 


Any kind of blockage in the exhaust system can cause loud noises from the muffler. A piece of debris can get lodged in the exhaust system and prevent exhaust gases from escaping the system properly, which causes a loud and hissing noise.  

Leak in exhaust manifold 

The exhaust manifold collects the exhaust fumes generated by the engine and directs them toward the catalytic converter or turbocharger. If you hear a puffing or popping noise coming from the motor, it could indicate a leak in the exhaust manifold. Even a small leak can cause the exhaust to escape and increase emissions.  

Failed catalytic converter 

The catalytic converter filters out harmful byproducts in the exhaust fumes and burns them up. It is a critical part of the exhaust system, and when it malfunctions, it can cause a loud muffler.  

Damage from road conditions  

Exhaust damage can occur from debris, poor driving conditions, road features, or other hazards. This can cause exhaust to make strange noises. 

Resonator problems 

A resonator is the component that reduces the noise produced by the engine. If the resonator malfunctions, it may be the reason behind a loud exhaust. The resonator may become blocked with dirt and debris or may wear out with time, and it may lose its ability to absorb sound.  

Leak from exhaust section connections 

The connections or joints can corrode or become loose over time. This can cause leakage and also create a loud noise. This problem is relatively easier to fix.  

Is your exhaust making a loud noise?  

A noisy exhaust is not only irritating but also creates a lot of pollution. Different factors can cause a noisy exhaust and only an experienced mechanic can assess the problem and fix it appropriately.  

If your exhaust is noisy, you should take your vehicle for repairs immediately because driving with a noisy exhaust can be dangerous and lead to further damage. Bring your vehicle to us for reliable repairs. 

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