Have you started hearing some weird noises from your exhaust? It just doesn’t sound right? And you think that you have a hole in the muffler? If this is the case, and you are in this situation, then you are at the right place because there will be a lot to cover on this topic where we will learn everything you need to know when it comes to the hole in muffler problem.
Having a problem like this, especially in older cars is extremely common these days. Why is this the case? Well, this is often the situation because a lot of miles have been put on that specific car and the years also accumulate. So, a muffler that develops holes is a really common situation that can happen to anyone.
Some people are completely unaware of it and they think that there is something else broken with their car but actually there was a small hole that appeared a few years back and as the time progressed, the hole has spread and become larger. And this increase in the size will also be more and more notable as the hole in muffler becomes bigger and bigger. That’s why we are going to help you out.
First, we are going to learn what is a muffler and why it is so important. Then we will cover what can cause a hole in the muffler and the effects of this hole. After this, we will cover the symptoms of the hole in the muffler and how to diagnose and repair the issue. So, if you want to learn more, follow along.
What Is A Muffler?
Now before we dive deeper into the effects of the hole in muffler on the performance of the vehicle. Let’s first cover what is a muffler in general terms. Many people who are not familiar with cars often confuse these terms. If you are well, prepared, you can move to the following chapters. If not, keep up with us for a bit.
So, what is a muffler in general terms? A muffler is a device that is installed on your exhaust. Not to confuse this muffler with a catalytic converter though.
The catalytic converter is mounted at the front of the exhaust, right after the exhaust manifold. This device serves a special purpose to destroy the harmful particles and not allow them to escape into the atmosphere.
While the muffler is only serving a purpose to muffle down the sound. Some cars only have a rear muffler, some cars even have a middle and a rear muffler.
These metallic boxes usually come in an oval shape. Some of them are cylindrical, some of them are squared. Depending much on the manufacturer and the space underneath of the vehicle that is used to accommodate them.
These mufflers are empty. They don’t have a honeycomb structure inside. They only have steel plates that are welded and each plate has a hole. The holes are placed in that manner to kill the exhaust sound.
As you know, straight pipe exhaust is extremely loud. This type of exhaust is basically without mufflers. Only a straight pipe from the exhaust manifold up to the rear end of the car. It sounds cool but cops will not like it. More on that in the next chapter before we cover why there is a hole in muffler.
Why The Muffler Is It So Important?
The muffler is a really important piece of the puzzle and your car will basically not perform as it should if you have a hole in muffler.
Whenever there is something wrong with the muffler. Something like a hole in muffler. The performance of the vehicle will be greatly affected.
Even though the exhaust system doesn’t have mechanical parts, it is still a very crucial component that greatly affects how our cars drive and perform on the road.
That’s why whenever you have a hole in the muffler, you should not ignore it and act accordingly. And by this, we mean either fixing the muffler or replacing it with a new unit. Later on, in the article, we are going to explain how this is performed. The next thing that we want to talk about is the causes, what could cause a hole in the muffler and ruin the performance of the vehicle. So, if you want to learn more, keep up with us.
What Can Cause A Hole In The Muffler?
Now as we covered the basics of the muffler and its importance. Now let’s discuss more on what could cause a hole in muffler? What things could ruin your muffler and make it unusable? Let’s elaborate on them.
The first and most probable cause is rust. Rust is a major enemy to metal and this unprotected metal that the muffler is built upon is really prone to rust.
Some manufacturers are using more quality metal that is not that prone to developing rust. But in some cases, some manufacturers are using the cheapest that they can get. And this was the case with all of the carmakers up until the early 2000s when better quality metals started being used and the risk of rust was brought to a minimum.
So, if you have hole in muffler, you probably own an older vehicle that has been through a lot during its lifetime.
The condensation that is created and these short trips also cause holes to develop inside of the muffler. As you probably know there is condensation created from the exhaust fumes when you start the car. And if you don’t allow the muffler to heat up and throw all this water out, there will be some holes that will develop where the water is sitting on the inside of the muffler. It will slowly rust out and deteriorate the metal from the inside.
There is also a chance of the muffler to suffer from an impact from an external force, like an accident on the road or you accidentally hit a sharp rock. Anything is possible while you drive. That’s why you need to learn the effects of hole in muffler and sort this problem out. And precisely that we are going to cover next.
Effects From The Hole In The Muffler
Now since we covered the problem and learned what could cause the muffler to fail. Now let’s discuss some other important topics.
Namely, the effects from the hole in muffler. What are the effects for you as a driver as well as the effects of the hole in muffler for the environment? Knowing this stuff will make you take things in a hurry and fix the damn muffler on your car. Now let’s elaborate on the possible effects on you and the environment.
1. Bad Engine Performance
Whenever you have hole in muffler, you will experience some poor engine work. Especially if this hole is located somewhere in the middle muffler.
This leak will somewhat restrict the flow of gases. Imagine how everything works smoothly and the gas exits the car in a smooth manner and imagine it with an exhaust leak. The flow will be somewhat interrupted and you will feel this when it comes to the performance of the engine.
It is highly likely that you will lose some horsepower from this exhaust leak. Hole in muffler isn’t that serious though.
If you have a hole in the front of the exhaust, like in the exhaust manifold, or at the catalytic converter. It will result in an even worse problem. This will be the case because the O2 sensors will not measure the flow of gases correctly and you will notice this when it happens by the worsening of the performance of your car.
That’s why a hole in muffler or a hole anywhere in the exhaust system should be properly sorted out if you want to prevent some further problems to appear. Now let’s move to the next effects of hole in muffler.
2. Danger Of Carbon Monoxide Poisoning
The second thing that we want to discuss when it comes to hole in muffler is the danger of carbon monoxide poisoning.
Yup, that’s right, you risk being poisoned by these gases if you run your car like this. This is a very dangerous situation. Especially if you drive with the windows closed and the carbon monoxide fills the cabin. What can happen is that you can pass out from inhaling this carbon monoxide.
And this happening to you at high speed, can be fatal. So, whenever you smell carbon monoxide gas inside of the cabin it is important to act quickly and avoid situations like this where you could get poisoned from this gas and hurt in the process.
This could most frequently be caused by an exhaust leak in the middle section of the car. The middle muffler or the exhaust pipe itself could be the culprit for this problem. This problem has to be patched as soon as possible and avoid some permanent problems happening to your health. Now let’s move to the last effect that you could notice when this situation of hole in muffler is happening.
3. Failing The Emission Testing
Another very common effect of the hole in muffler is your car failing the emissions testing. But why is this the case?
Well, when you take your car for registration, your car will be tested for emissions. The technician will put a probe in the exhaust and will measure the gas flow in the exhaust.
If the readings from this measuring are not quite correct, the car will not be allowed to get registered. They will note that you have a hole in the muffler and you need to sort this problem out and then take it to the DMV to get it registered. And this is something that you don’t want. You will need to go there twice if you want to get things sorted.
Some states though are not that strict and you will escape with a warning. But if you live in California or New York, then there is little chance that you will pass this testing and they will make you fix that hole in muffler if you want to resume driving your car.
Police can also notice if your car smokes and they could give you a ticket because of this. Whenever there is a clear sign of failing catalytic equipment, they could find you and you end up paying the price for driving like this.
Symptoms Of A Hole In The Muffler
Now as we covered the effects of the hole in the muffler problem. Let’s now discuss the symptoms of this problem. How you can tell if you have an exhaust leak? Let’s elaborate on these symptoms in depth in the following few chapters. And after that, we will learn how to fix this problem. So, let’s get into it.
1. Carbon Monoxide Smell In The Cabin
The first symptom of a hole in muffler that you will probably notice is the smell of exhaust gases inside of the cabin. This symptom will be most pronounced if you have a hole in the middle muffler that is located somewhere in the middle of the car if we look at it lengthwise.
The smell of exhaust fumes can be one of the easiest methods that you can do to diagnose the problem of hole in muffler.
The important thing for you when you notice a smell of exhaust gases inside of the cabin is to open the windows and let fresh air get inside.
Never drive with the windows closed when you have exhaust fumes inside of the cabin. Absolutely never. Because these gases are toxic and could possibly harm your health. So, make sure that you avoid them at any cost and fix the hole in muffler as soon as possible. Now let’s move to the following symptom.
2. Noisy Exhaust
A clear indication if you have a hole in muffler is a noisy exhaust. Your exhaust will basically sound like crap when the muffler is blown.
The sound that this muffler produces will resemble pops and bangs all the time. Or if there are pinholes there could be something like a hissing sound. But when the problem is too serious and the muffler is completely destroyed and resembles a swiss cheese the sounds will be all over the place.
This would be most notable at any RPM range. Some people might want this sound because their car sounds really loud. But this sound should alert you.
Anything that is not normal is an alert message for you as a car owner and a clear indication that you need to react quickly if you want to avoid further problems happening on your car and also to avoid this problem affecting your health since these gases will enter your lungs and could cause damage to your health. Now let’s move to the next symptom of a hole in muffler.
3. Visible Holes In The Muffler
Another symptom in hole in muffler are the visible holes on the muffler. If the muffler is so rusted out, then it probably has pinholes and even bigger holes in some cases. So, big that you could fit your hand inside the muffler.
And this is not good. Any bigger hole than a quarter of an inch will significantly affect your driving performance. As well as the sound that it will produce will be extremely annoying and it could literally frustrate you as an owner.
That’s why you need to act quickly when it comes to this problem and fix it accordingly. But how you can tell if you have a hole in muffler? Well, that’s what we are going to discuss in the following chapter where we will elaborate the diagnosing process in depth.
How To Diagnose A Bad Muffler?
We learned the effects of a bad muffler as well as the symptoms that represent this problem. And based on these symptoms you can really simply diagnose a bad muffler on your car.
The noise that a blown muffler creates is basically a dead giveaway of this problem. The noise will be quite sharp and if you have a V8, the rumbling sound under these circumstances will be more pronounced. This might even straight pipe it, which is another good idea if you are running an old classic motor.
But anyways, the second most obvious giveaway of a blown muffler is probably the big hole that is created on the muffler. If the muffler is in the early stages it could be saved. But if the holes are too large, then you will need a new muffler.
To check if you have holes in your muffler, you only need to lay down and inspect the muffler with a flashlight. If there are small holes, prepare for repair. If there are large holes, then you will need to prepare to replace the muffler. But how you can do this practice? Let’s elaborate in the following chapter.
How To Repair Hole In Muffler?
We covered the effects and symptoms and also how to diagnose a hole in muffler. Now let’s see how you can repair a bad muffler. What cards are on the table?
The solution for this problem really depends on the size of the holes that are on the muffler. If the hole can fit your arm into, then this muffler has seen better days and it needs to be replaced. If there are some small pinholes, then this is repairable.
But you should note that whenever there are small holes, even if you fix the spot, another hole will appear next to it sooner or later because the metal is too thin and basically the heat will make it fail. But how you can fix a leak? Let’s elaborate on the ways.
Method 1: JB Weld
The first thing that you can try is to use a JB Weld. This JB Weld is extremely durable. This is similar stuff like body filler from a visual perspective.
The JB Weld comes in small packaging and it is easily applicable. You just get a plastic knife and put some of the JB Weld on the holes. Leave it like this so the JB Weld dries out and after this will be solid as a rock. It will easily fix your problem with the exhaust leak.
Method 2: Professional Welder
If you are better prepared and equipped, you can try to patch the exhaust. If you have a welder this is really simple to do.
Just get a metal sheet and create a small patch. Then weld the patch with the welder and you will be good to go. Just make sure that you create a larger patch because if you try to weld these holes, you will burn through the metal really easily.
Cost To Sort The Hole In The Muffler Problem
So, what is the cost to sort the problem with the hole in muffler? The simplest solution is probably using some JB Weld. This will cover the holes and prevent any further exhaust leaks to develop. You can get it for less than $10. The second thing you can do is to weld a patch on the muffler. This is only possible if you have a welder or know a friend that has a welder to give you a hand. A beer will do the trick in this situation.
The worst case is if there is a big hole in muffler. In this case, you will need a brand new muffler. And these can range from $100 up to $600 depending on the make and model. The cheaper the car the cheaper the muffler.
Conclusion To Hole In Muffler
In this article, we have covered quite a bit when it comes to the problem of hole in muffler. We learned what this problem is and what are the effects of the hole in muffler on yourself and also on the vehicle.
Then we covered the symptoms of this problem that include visible holes inside of the muffler, smell of exhaust fumes, and unbearable sounds that will get you mad.
Lastly, we covered how you can fix a hole in muffler with JB Weld or by using a welder. And also at what cost could this be done.
These tools have been tried and tested by our team, they are ideal for fixing your car at home.