Exhaust Leak: Risks To Car Performance & Health

Exhaust leaks are indeed detrimental, posing significant risks to both vehicle performance and environmental health. A compromised exhaust system can lead to reduced fuel efficiency and power, and it introduces hazardous gases, such as carbon monoxide, into the passenger cabin. Moreover, the escape of these gases contributes to increased air pollution, exacerbating environmental concerns. Ignoring exhaust leaks not only affects the vehicle performance but also has broader implications for human safety and environmental health, making timely detection and repair crucial.

Your car’s exhaust system: it’s not exactly the sexiest part, is it? Tucked away underneath, often forgotten until something goes wrong. But trust me, this unsung hero plays a vital role in keeping your ride running smoothly and, more importantly, keeping you and the planet a little safer. Think of it like the digestive system of your car – it takes all the nasty byproducts of combustion and gets rid of them.

What Does Your Exhaust System Do, Anyway?

At its core, your exhaust system does two main things. First, it’s all about emissions control. Modern cars are designed to minimize the harmful stuff that comes out of the tailpipe, and the exhaust system is where a lot of that magic happens. Secondly, it’s the key to noise reduction. Without it, your car would sound like a drag racer at 3 AM, which wouldn’t make you popular with the neighbors (or the local authorities!).

What Exactly is an Exhaust Leak?

Imagine a pipe with a hole in it. Instead of all the stuff flowing through the pipe going where it’s supposed to, some of it escapes. That’s basically what an exhaust leak is! It’s any breach in the system where exhaust gases are escaping before they’re supposed to. These leaks can happen at joints, through rust, or even from physical damage.

Why Should You Care About an Exhaust Leak?

Okay, so a little bit of gas is escaping. What’s the big deal, right? Wrong! Neglecting an exhaust leak can lead to a whole host of problems:

• Reduced Fuel Economy: Your engine has to work harder to compensate for the lost pressure, meaning you’ll be making more trips to the gas station. Nobody wants that!
• Performance Degradation: That pep in your car’s step? Kiss it goodbye. An exhaust leak throws off the engine’s balance, leading to sluggish acceleration and overall poor performance.
• Health Hazards (Carbon Monoxide): This is the scariest one. Exhaust contains carbon monoxide, a colorless, odorless, deadly gas. Leaks can allow it to seep into the cabin, putting you and your passengers at serious risk.
• Environmental Pollution: Leaks mean more harmful pollutants are released into the atmosphere, contributing to air pollution. Let’s keep our planet healthy.
• Increased Repair Costs: Ignore a small leak, and it’s only going to get bigger and more expensive to fix. Catching it early can save you a serious chunk of change in the long run.

Anatomy of Your Exhaust System: More Than Just a Tailpipe!

Ever wondered what happens after your engine roars to life? The magic, or rather, the science, happens in your exhaust system. It’s like the unsung hero under your car, quietly working to keep things running smoothly (and legally!). Let’s take a peek under the chassis and break down the key players in this crucial system:

From Engine to Freedom: The Exhaust Manifold and Pipes

First up, we have the exhaust manifold. Think of it as the funnel that collects all the hot, spent gases from each of your engine’s cylinders. These manifolds are usually made of tough stuff like cast iron for its durability and cost-effectiveness, or stainless steel for its resistance to corrosion and heat. From there, the gases embark on their journey through the exhaust pipe(s). These pipes are the highways of the exhaust system, transporting the gases away from the engine. You’ll find different pipe configurations depending on your vehicle—some have single pipes, others have dual systems for enhanced performance and a throatier sound. Material choices vary too, from aluminized steel (a good balance of cost and corrosion resistance) to premium stainless steel for maximum longevity.

The Green Guardians: Catalytic Converters and Oxygen Sensors

Next in line is the catalytic converter, the environmental superhero of your exhaust system. This clever device uses catalysts to convert harmful pollutants like hydrocarbons, carbon monoxide, and nitrogen oxides into less harmful substances like water vapor and carbon dioxide. Think of it as a high-tech air purifier strapped to the bottom of your car! Crucial to this process is the Oxygen sensor (O2 Sensor), often located before and after the catalytic converter. These sensors are like the exhaust system’s nervous system, constantly monitoring the oxygen levels in the exhaust stream and relaying this information back to the engine control unit (ECU). This feedback loop allows the ECU to fine-tune the fuel mixture for optimal efficiency and minimal emissions. Without a properly functioning O2 sensor, your car could be running rich or lean, harming performance, fuel economy, and the environment.

Taming the Roar: Mufflers and Resonators

Now, let’s talk about noise! The muffler is the silencer of your exhaust system, designed to reduce the roar of the engine to a civilized hum. There are different types of mufflers, each with its own sound characteristics. Some provide a quiet, stock sound, while others offer a more aggressive tone for those who like to make a statement. If you like the subtle rumbling sound of a sports car then you already know! Also contributing to the sound profile is the resonator. Think of it as a fine-tuner, helping to eliminate unwanted frequencies and reduce drone, that annoying humming sound you sometimes hear at certain speeds.

Holding it All Together: Gaskets, Flanges, and Clamps

Finally, let’s not forget the unsung heroes that keep everything sealed and secure: exhaust gaskets, exhaust flanges, and exhaust clamps. Exhaust gaskets are critical for sealing the joints between different components, preventing those pesky exhaust leaks. They’re made from materials like multi-layer steel or graphite, designed to withstand high temperatures and pressures. Exhaust flanges are the connection points where different parts of the exhaust system bolt together. These are usually joined using bolts or welds. And Exhaust Clamps are the workhorses, securely fastening pipes and components together. You’ll find different types, like U-bolt clamps and band clamps, each suited for specific applications.

So, there you have it – a quick tour of your exhaust system. Hopefully, now you’ll appreciate all the components under your car.

The Usual Suspects: Pinpointing the Root of Exhaust Leaks

So, what exactly causes these pesky exhaust leaks? Think of your exhaust system as a hardworking athlete, constantly battling the elements. It’s a tough job, but over time, wear and tear take their toll. Here’s a breakdown of the most common culprits:

• Corrosion: Ah, rust – the car’s arch-nemesis! Your exhaust system is constantly exposed to extreme temperatures, moisture, and especially in colder climates, road salt. This creates the perfect breeding ground for rust and oxidation, which gradually eat away at the metal, creating holes and weakening joints. Imagine leaving a metal tool outside in the rain for years – eventually, it’s going to crumble. That’s essentially what’s happening to your exhaust system, just at a slightly slower pace.

• Physical Damage: Ever hear a thunk as you drive over something? Road debris, potholes, and even minor accidents can inflict serious damage on your exhaust system. A direct hit can dent, crack, or even puncture the pipes, creating an immediate leak. Think of it like accidentally kicking a soccer ball really hard into a metal fence; the fence might bend or break!

• Worn or Deteriorated Gaskets: Gaskets are the unsung heroes of your exhaust system, creating tight seals between different components. However, they’re made of materials that degrade over time due to constant heat cycling and pressure. As they age, they become brittle and crack, losing their ability to seal effectively. This is like an old rubber band that’s been stretched too many times – eventually, it snaps. Proper installation here is key.

• Loose or Broken Bolts and Clamps: Vibration is a car’s natural side-effect, it can be quite loud and can be quite uncomfortable if not checked early. Over time, the constant vibration of your engine and exhaust system can loosen bolts and clamps that hold everything together. Corrosion can also weaken these fasteners, causing them to break. Imagine a washing machine during a spin cycle – all that shaking can loosen things up!

Decoding the Clues: Spotting the Symptoms of Exhaust Leaks

Now that we know what causes exhaust leaks, how do we know if we have one? Here’s a rundown of the most common symptoms:

• Loud Exhaust Noises: This is often the most obvious sign. An exhaust leak will sound like a hissing, roaring, or popping sound coming from under your car, especially when you accelerate. It’s like your car is trying to whisper a secret but can only yell it! Pay close attention to any new or unusual noises coming from your exhaust system.

• Reduced Fuel Efficiency: A leak in your exhaust can mess with your engine’s air-fuel ratio, causing it to burn more fuel than necessary. If you suddenly notice that you’re filling up your tank more often, an exhaust leak could be the culprit. Think of it like trying to bake a cake with a hole in the mixing bowl – you’re going to waste a lot of ingredients!

• Engine Performance Issues: Exhaust leaks can cause a variety of engine performance problems, including power loss, rough idling, and hesitation during acceleration. Your engine might feel sluggish or unresponsive. It’s like trying to run a race with a pebble in your shoe – you can still run, but it’s not going to be pretty!

• Increased Emissions: Exhaust leaks release harmful pollutants into the atmosphere, which can cause your vehicle to fail an emissions test. If you’re concerned about your car’s environmental impact, addressing exhaust leaks is a must. It’s like leaving the tap running while you brush your teeth – it’s wasteful and harmful.

• Burning Smell: If you smell hot exhaust gases inside your car, especially after driving, it’s a strong indication of an exhaust leak. This smell can be unpleasant and even dangerous. It’s like accidentally leaving the oven on without opening a window – the smell will fill the house!

• Check Engine Light (CEL): An exhaust leak can trigger your car’s Check Engine Light. The car’s computer may detect that something is amiss and the light turns on to alert you. Don’t ignore the CEL, as it could be a sign of a serious problem.

• Carbon Monoxide Poisoning: WARNING: This is the most serious symptom. Carbon monoxide (CO) is a colorless, odorless gas that can be fatal. If you suspect an exhaust leak, especially if you experience headaches, dizziness, or nausea while driving, get your car checked immediately. Open all windows and get fresh air. Carbon Monoxide can kill so you must take this seriously.

• Vibration: In some cases, an exhaust leak can cause unusual vibrations, especially at certain RPMs. This is because the escaping gases can create turbulence and disrupt the normal flow of the exhaust system.

Early detection is key! Addressing exhaust leaks promptly can prevent further damage and costly repairs. If you notice any of these symptoms, get your car checked out by a qualified mechanic as soon as possible. It’s better to be safe than sorry.

Finding the Phantom: Your Exhaust Leak Detection Toolkit

Alright, so you suspect your car’s been letting out a little too much noise, or maybe it’s just not running like it used to. Chances are, you’ve got an exhaust leak. But how do you find the culprit? Don’t worry, you don’t need to be Sherlock Holmes to sniff out the problem! Let’s get you equipped with some easy-to-use methods for detecting those sneaky exhaust leaks, from the “I can do this in my driveway” level to the “Okay, maybe I’ll leave this to the pros” realm.

Visual Inspection: Your First Line of Defense

Think of this as your initial recon mission. Grab a good flashlight (because let’s face it, the underside of your car is usually shrouded in mystery), and get ready to crawl. You’re looking for anything that looks out of the ordinary:

• Rust and Corrosion: These are the usual suspects. Exhaust systems live a hard life, battling heat, moisture, and road grime. Look for rusty patches, especially around joints, welds, and hangers.
• Cracks: Obvious, right? But sometimes, cracks can be hairline fractures that are easy to miss. Pay close attention to areas where the metal seems stressed or fatigued.
• Sooty Deposits: Exhaust leaks often leave a telltale trail of black soot around the escape point. These are like little breadcrumbs leading you right to the issue.
• Loose Connections: Check all the clamps, bolts, and flanges. Are any missing? Are they visibly loose or corroded? Give them a wiggle (carefully!), and see if anything feels unstable.

Don’t be afraid to get up close and personal – that’s why we call this a visual inspection!

Listening Devices (Stethoscope Method): Time to Channel Your Inner Doctor

This method is all about sound. You’re going to use a listening device to amplify the sound of escaping exhaust gases. Now, a fancy mechanic’s stethoscope works great for this, but if you don’t have one handy, a simple length of hose will do the trick.

Here’s how it works:

1. Start the Engine: Let the engine idle.
2. Get Listening: Place one end of the stethoscope or hose near a joint or connection on the exhaust system. Put the other end to your ear (obviously!).
3. Listen Carefully: You’re listening for a hissing, puffing, or sputtering sound. This is the sound of exhaust gases escaping.
4. Isolate the Source: Slowly move the stethoscope or hose along the exhaust system, listening closely at each joint and connection. The closer you get to the leak, the louder the sound will be.

Pro-Tip: Be extremely cautious of hot exhaust components when performing this method. Burns are no fun!

Smoke Test: Calling in the Professionals

Okay, this is where things get a little more advanced. A smoke test involves pumping smoke into the exhaust system and then looking for where the smoke escapes. This method is incredibly effective at pinpointing even the smallest leaks.

Here’s the catch: it requires specialized equipment. You’ll need a smoke machine designed for automotive use, and you’ll need to know how to safely connect it to your exhaust system.

For most DIYers, a smoke test is best left to a professional mechanic. They have the equipment, the expertise, and the training to perform the test safely and accurately.

Important note: Safety First! Always work in a well-ventilated area when dealing with exhaust systems. Carbon monoxide is no joke!

Arming Yourself: Essential Tools and Materials for Exhaust Repair

Alright, so you’ve decided to tackle that exhaust leak yourself? Awesome! But before you dive headfirst under your car, let’s make sure you’re packing the right gear. Think of it like preparing for a quest – you wouldn’t face a dragon with a butter knife, would you? Let’s gather your arsenal of tools and materials.

#### The Torque Wrench: Your Best Friend for Avoiding Future Headaches

First up, the torque wrench. Now, I know what you’re thinking: “Ugh, more precision?” But trust me on this one. Overtightening bolts on your exhaust system is a recipe for disaster – you could strip the threads, warp the flanges, or even crack the manifold. Not good. A torque wrench ensures you tighten those bolts to the exact specifications, providing a proper seal without causing damage. Consider it cheap insurance against future leaks and headaches.

#### Welding Equipment: For the Seriously Committed

If your exhaust leak involves cracks or holes that need more than just a patch, you might be reaching for a welder. Whether it’s a MIG (Metal Inert Gas) or Stick welder, make sure you know what you’re doing. Welding isn’t exactly brain surgery, but it’s not something to learn on the fly while under your car. Safety first! Wear a proper welding helmet, gloves, and protective clothing. Sparks fly, and you don’t want to become a human sparkler.

#### Lifting Equipment: Getting Up Close and Personal (Safely!)

You’ll definitely need to get your car off the ground to access the exhaust system. A jack is essential, but never, ever work under a car supported only by a jack. Invest in a good set of jack stands – they’re your lifeline. Ramps can also be useful, but they might not provide enough clearance for some jobs. A lift is ideal but probably overkill unless you’re running a repair shop in your garage. Safety is paramount!

#### Penetrating Oil: The Magic Elixir

Rusted bolts and fittings are the bane of every mechanic’s existence. Before you even think about wrenching, give everything a generous dose of penetrating oil. Let it soak for at least 15-20 minutes (or even overnight) to work its magic. This stuff can save you from snapping bolts and spending hours drilling out stubborn hardware.

#### Sockets and Wrenches: The Bread and Butter

A comprehensive set of metric sockets and wrenches is a must-have for any DIY mechanic. Make sure you have a variety of sizes and both standard and deep sockets to reach those awkwardly placed bolts.

#### Exhaust Gasket Materials: Choosing the Right Seal

When replacing exhaust gaskets, don’t just grab the cheapest option. Different types of gaskets are designed for different applications. Multi-layer steel (MLS) gaskets are a good choice for high-performance applications, while graphite gaskets are more forgiving on older, less-than-perfect surfaces. Check your vehicle’s service manual or a reliable online resource to determine the correct gasket for your specific application.

#### Exhaust Pipe Materials: Durability vs. Budget

Similarly, when replacing sections of exhaust pipe, you’ll have a choice of materials. Aluminized steel is the most affordable option, but it’s also the most prone to rust. Stainless steel is much more durable and corrosion-resistant, but it comes at a higher price. Consider your budget and the climate you live in when making your decision.

#### Cutting Tools: For Removing the Old

To remove damaged sections of exhaust pipe, you’ll need a cutting tool. A hacksaw will get the job done, but a reciprocating saw (Sawzall) or a pipe cutter will make things much easier and faster.

#### Grinder with Cutting and Grinding Wheels: Prep is Key

Before welding or patching, you’ll need to clean and prepare the surfaces. A grinder with cutting and grinding wheels is perfect for removing rust, scale, and old gasket material. This ensures a clean, strong bond.

With these tools and materials in hand, you’ll be well-equipped to tackle most common exhaust repair tasks. Good luck, and remember to always prioritize safety!

Getting Your Hands Dirty: Exhaust Repair Procedures and Considerations

Okay, so you’ve found an exhaust leak and you’re thinking about tackling it yourself? Awesome! Just remember, safety first, and don’t bite off more than you can chew. We’re going to walk through some common exhaust repair procedures, but always remember to consult your vehicle’s repair manual for specific instructions and torque specs.

Replacing Exhaust Gaskets: Sealing the Deal

Think of exhaust gaskets like the seals on your Tupperware – if they’re old and cracked, things are gonna leak. Nobody wants exhaust fumes leaking into the cabin!

1. Safety First! Let the exhaust system cool down completely before you even think about touching it. Trust me, you don’t want to learn the hard way how hot those pipes get. Disconnect the battery too.
2. Loosen Up: Spray those bolts with some penetrating oil days in advance. Seriously, the more time it has to soak in, the better.
3. Out With the Old: Carefully remove the bolts holding the exhaust components together. If they’re really stuck, don’t force them! You might need to use a torch to heat them up (carefully!) or even cut them off.
4. Clean Slate: This is key. Scrape off all the old gasket material from the mating surfaces. A wire brush or gasket scraper will be your best friend here. The surfaces need to be clean and smooth for the new gasket to seal properly.
5. In With the New: Place the new gasket in position. Make sure it’s the right way around!
6. Tighten It Up: Reinstall the bolts and tighten them to the manufacturer’s specified torque using a torque wrench. This is super important! Too loose, and it will leak. Too tight, and you risk damaging the gasket or the components.

Patching Small Holes: The Temporary Fix

Got a tiny hole or crack? You might be able to patch it up, but let’s be clear: this is usually a temporary solution. Think of it as a band-aid, not a cure.

1. Prep the Area: Clean the area around the hole with a wire brush to remove rust and debris.
2. Apply the Patch: Use exhaust repair tape or a patching kit according to the manufacturer’s instructions. These usually involve some kind of heat-resistant epoxy or fiberglass wrap.
3. Wrap it Tight: Make sure the patch is applied tightly and covers the entire hole and surrounding area.
4. Let It Cure: Allow the patch to cure completely before starting the engine.

Keep in mind a professional weld is likely the best option for a secure and lasting patch.

Replacing Sections of Exhaust Pipe: Cutting and Clamping (or Welding)

Okay, this is getting a bit more involved. If a section of your exhaust pipe is completely rusted through, you’ll need to replace it.

1. Measure Twice, Cut Once: Measure the length of the damaged section and purchase a replacement pipe of the same diameter and length.
2. Cutting Time: Use a hacksaw, reciprocating saw, or pipe cutter to cut out the damaged section of pipe.
3. Smooth It Out: Deburr the cut edges of the pipe with a file or grinder to ensure a smooth surface for the clamps or welding.
4. Clamping vs. Welding:
   • Clamps: If you’re using clamps, slide them over the ends of the pipes and position the new section in place. Tighten the clamps securely.
   • Welding: If you’re welding, clean the surfaces thoroughly and weld the new section of pipe in place. Make sure the weld is strong and airtight.
5. Alignment is Key: Make sure the new section of pipe is properly aligned with the rest of the exhaust system before tightening the clamps or welding it in place.

Using the Correct Exhaust Gasket Materials and Exhaust Pipe Materials: Choosing Wisely

Don’t just grab the cheapest gasket or pipe you can find! Think about what’s best for your needs. For gaskets, multi-layer steel (MLS) gaskets are generally a good choice for performance applications, while graphite gaskets are better for older vehicles with rougher surfaces. As for pipes, aluminized steel is a good compromise between cost and durability, while stainless steel is the most durable option, but it’s also more expensive.

Proper Tightening with a Torque Wrench: No Guesswork Allowed!

I cannot stress this enough: use a torque wrench! Don’t just guess how tight the bolts should be. Using the correct torque specifications will prevent leaks and damage to the components. Look up the torque specs in your vehicle’s repair manual and follow them carefully.

Staying Legal and Safe: Regulatory and Safety Considerations

Alright, let’s talk about keeping things legal and safe – because nobody wants a run-in with the law or, worse, a trip to the emergency room! Your exhaust system isn’t just about making your car go vroom; it’s also tied to a bunch of rules and regulations designed to keep our air clean and us breathing easy.

Emissions Standards: Keeping the Air Clean (and Avoiding Fines!)

First up, we have emissions standards. Think of these as the rules of the road for what your car can spew into the atmosphere. Governments at both the local and national levels set these standards to reduce pollution and protect public health. These regulations are there to ensure that vehicles meet specific criteria for reducing harmful pollutants. We’re talking about things like carbon monoxide, hydrocarbons, and nitrogen oxides. An exhaust leak can throw a major wrench into this whole operation. It messes with your engine’s ability to properly burn fuel, leading to increased emissions. And trust me, nobody wants a smog cloud following their car! Failing to meet these standards can result in fines, and nobody wants that.

Vehicle Inspection Programs: Don’t Get Caught with a Leaky Exhaust!

Now, let’s chat about vehicle inspection programs. Many states and localities require regular inspections to ensure your car is road-worthy and environmentally friendly. Guess what? An exhaust leak is a surefire way to fail one of these inspections. Inspectors check for visible damage and excessive emissions. A leaky exhaust messes with emissions control, so your car could fail inspection. It’s kind of like showing up to a test without studying – the outcome isn’t pretty. So, keep that exhaust system in tip-top shape to avoid the dreaded rejection sticker.

Safety Regulations: Carbon Monoxide is No Joke!

Finally, the big one: safety. We’ve mentioned it before, but it bears repeating: carbon monoxide (CO) is a silent killer. This odorless, colorless gas is a byproduct of combustion, and a leaky exhaust can send it straight into your car’s cabin. Breathing in too much CO can lead to serious health problems, or even death.

Therefore, it’s crucial that you work on your exhaust system in a well-ventilated area. That means opening up the garage door, using fans, or even better, doing the work outside. And if you start feeling dizzy, nauseous, or get a headache while working on your car, get some fresh air immediately. Carbon monoxide poisoning is not something to mess around with! Take breaks and let fresh air circulate to prevent issues. Seriously, this stuff is no joke, so always prioritize safety!

Turbocharged Troubles: When Exhaust Leaks Attack Your Boost!

So, you’ve got a turbo or supercharger, huh? Sweet! You’re all about that extra power and that sweet, sweet boost. But here’s a buzzkill: exhaust leaks can be especially nasty when you’ve got forced induction. They don’t just mess with your fuel economy or make your car sound like a lawnmower on steroids; they can seriously compromise your turbo or supercharger’s performance, and even lead to some expensive engine woes. Let’s dive into this turbo/supercharger specific nightmare!

Leaks Before the Turbo: Kiss That Boost Goodbye!

Imagine this: Your turbo is like a tiny, high-speed fan spun by the force of your exhaust gases. The faster it spins, the more air it crams into your engine, and the more power you get. But what happens when there’s a leak before the turbo? Think of it as poking holes in the sails of a wind turbine. You’re losing that valuable exhaust pressure, and that means your turbo ain’t spinning as fast. Bottom line? Less boost. Less fun.

• Leaks can dramatically reduce boost pressure, leaving your turbocharged engine feeling sluggish and underpowered. It is like a kick in the teeth!
• Turbo lag (that annoying delay between hitting the gas and feeling the power) can become even more pronounced.

Engine Damage Potential: Things Get Real, Real Fast

Okay, so losing power sucks, but it gets worse. Leaks in a turbocharged system can actually damage your engine. How?

• Your ECU (Engine Control Unit) is constantly trying to maintain the ideal air-fuel ratio. If exhaust is leaking, the car will assume it needs to pump in more fuel! Running lean (not enough fuel) can lead to detonation (knocking), which is basically tiny explosions inside your cylinders that can destroy your pistons.
• Excessive heat is bad news for turbos! The turbo will struggle to maintain consistent boost with an exhaust leak. This struggle leads to the turbo working harder, creating more heat, and eventually leading to failure.

Diagnostic Headaches: Hunting Down the Culprit

Finding exhaust leaks on a turbocharged vehicle can be trickier than on a naturally aspirated one. Here are some things to keep in mind:

• Check the Manifold/Turbo Flange: These are high-stress areas prone to cracking and gasket failure.
• Smoke Test is Your Friend: A smoke test is particularly useful for turbo systems as it can help pinpoint even the smallest leaks that might be hard to hear or see.
• Boost Gauge is Key: If your boost gauge isn’t reading as high as it used to, or if it’s fluctuating erratically, a leak is a prime suspect.

In short, if you’ve got a turbo or supercharger, those exhaust leaks become an even bigger deal. Keep an eye (and ear) out for the symptoms, and don’t hesitate to get it checked out by a pro. Your engine (and your wallet) will thank you.

So, are exhaust leaks bad? Yeah, they definitely can be. Ignoring that weird noise or smell could save you from a headache down the road—or worse, keep you and your passengers safe. Best to get it checked out sooner rather than later, right?