Loud Muffler Sound Coming From Engine – 4 Main Causes

Loud Muffler Sound Coming From Engine – 4 Main Causes

Does your engine produce a loud muffler noise when accelerating? Does this sound seem to be coming from the muffler?

If yes, then the sound could be caused by a malfunctioned muffler.

This sound can be annoying. It can even ruin a rather beautiful day, especially when it makes people look at your car as it drives away. But this is not the only thing that should make you repair the muffler.

Causes of loud muffler sound coming from engine

Other than the loud noise, a damaged muffler could also affect the engine’s performance and your car’s exhaust system. So let us examine what causes this loud sound and how you can fix them.

What Causes A Loud Muffler Sound Coming From The Engine?

You might not have encountered this problem before, especially if you are a first-time car user or have recently bought a new car.

Therefore, you might be wondering which parts of the muffler to check when you hear a loud sound coming from the engine. To save on your time and effort, you should check the muffler to find out if it has the following.

1. Holes In The Muffler

Does your car’s muffler have holes? If yes, these holes could make your vehicle produce a loud muffler sound.

But how does the muffler gets to have holes? These holes can result from driving in a salty or oceanic area.

Salt tends to erode the muffler, making them have holes. It explains why most vehicles in these areas either have worn mufflers or produce a loud muffler sound coming from the engine.

Also, driving your car regularly at high speed over bumps will make the muffler shake heavily. It will result in tears and even holes on its surface.

Rust which occurs when you drive your vehicle regularly over water can also cause these holes.

Like salt, rust can make your car’s muffler wear out, forming rust holes. These holes resemble the weep holes in all manners except that they form near the exhaust pipes.

However, unlike rust holes, the weep holes perform a vital role in the exhaust system in that they drain out moisture, thus ensuring that the muffler does not rust.

How To Fix Holes In The Muffler

To fix this problem, you first have to check if there are holes in the muffler. But while doing this, you should be keen to differentiate between rust or salt holes from weep holes.

The next step is to sort it out. You can quickly fix the issue by applying a special metallic paste to the spot.

You can also use other methods such as welding and patching tape. These methods will seal the hole, making the muffler continue performing its functions well.

However, you should remember that these methods are just temporary fixes. Therefore, you should start making plans to purchase a new muffler in the next few months.

2. Completely Broken Muffler

The muffler could also be completely broken. When your car hits a hole, a rocky surface, or goes over a big speed bump.

A wholly broken muffler will fail to regulate the noise produced by the engine. As a result, you will hear a loud muffling sound.

How To Fix A Completely Broken Muffler

It is easy to identify a wholly broken muffle. It either touches the road’s surface or makes the engine produce a loud sound when wholly broken.

A wholly broken muffler can cause disastrous effects to your vehicle; hence you should make an effort to repair it or install a new one as soon as you can. You can fix it by welding it back to the exhaust system.

However, this may not be easy, and sometimes the fix doesn’t last for long. Therefore, it would help if you thus considered getting a new muffler.

3. Clogged Muffler

Due to freezing temperatures, the muffler could also get clogged by dust, accumulated toxic substances, and even contracted walls.

Loud muffler sound coming from engine

You can identify a clogged muffler by observing the amount of smoke it directs out of the exhaust system. A decline in the quantity of smoke released could indicate that the muffler is blocked.

A clogged muffler will interfere with the smooth functioning of the engine. It can make driving irritating and distasteful due to the loud muffler sound coming from the engine and even the low speed.

Therefore, you should check the condition of the muffler as soon as you identify these signs.

How To Fix A Clogged Muffler

You can fix the issue of a loud muffler sound coming from the engine by cleaning the muffler. There are many easy ways of doing so.

One such method is dipping a long brush into a cleaning fluid such as a degreaser and rubbing it inside the muffler.

If the sound results from cold weather, you can fix it by not leaving the car in the cold for long. You can also mitigate it by letting your car warm up before driving it.

4. Loose Components

The car’s exhaust system has several components such as the bracket, the connectors, the rubber hanger, etc.

Each of these components performs a significant role that ensures the efficient elimination of exhaust gases in the vehicle.

However, sometimes one of these components could interfere with the functions of another component.

For instance, very loose rubber hangers and connectors could touch the surface of the muffler, thus preventing the muffler from directing the exhaust noise out of the engine.

The car will produce a loud muffler sound coming out of the engine when this happens.

Are you wondering how these components get loose? When you regularly drive over rough or muddy terrain, your car will shake heavily, thus making the parts lose over time.

How To Fix Loose Components

When you hear of loose components, you start thinking of a mechanic expert. It is because you probably believe that it is difficult to fix them.

However, this should not be the case. You can quickly resolve the loose components when you have the right tools without going to a mechanics shop.

You have to use the screwdrivers or other mechanical devices to tighten all the loose bolts into the exhaust system and then check if the sound is gone.

If the loud muffler sound coming from the engine is still there even after tightening the loose tools perfectly, the issue may not be about the loose components. You can then proceed and check the other causes of this sound.

In Summary

We can conclude that a loud muffler sound coming from the engine indicates that your car has an issue. It is therefore essential to understand how it comes up.

There are four significant causes of this sound. They include loose components such as rubber hangers and connectors, holes on the muffler, clogged muffler, and even wholly broken muffler.

Therefore, whenever you hear this sound, you should check these parts and fix them where necessary.

In addition, it would help if you tried to resolve the issue as soon as possible to prevent your car from developing further problems related to it, such as total engine failure.