How to Fix an Exhaust Leak?

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How to Fix an Exhaust Leak?

The exhaust system in your car is vital. It directs all the harmful gasses from the combustion chamber outside the vehicle. It also reduces the loud noise coming from your engine. When accelerating your car or even slamming on your brakes, the engine produces hot fumes. The exhaust removes the fumes quickly, protecting your engine from overheating. When driving short trips during winter, the exhaust may still be wet. That water will cause rust in your metal pipe. The rust may cause leakage on your metal pipe. Eventually, you may require repairing or even replacing the exhaust pipe. If your car starts producing a loud noise when driving, it may be a result of an exhaust leak. How will you know if your muffle of failing? 

Symptoms of a Failing Muffle

Below are some of the bad muffler symptoms you need to watch out for. 

1. Loud Noise 

Remember, your exhaust system lowers the loud noise originating from your engine. So, if the engine starts producing loud noise, your muffle could be having a problem. No need to have an unbearable ride as you irritate the neighbors with the loud exhaust noise. Request your mechanic to check the exhaust. 

2. Engine Misfiring

When your muffle gets a hole, it loses its efficiency and causes engine misfiring. In most cases, it happens when you are decelerating your car. That’s why regular maintenance is vital. 

3. Poor Fuel Economy

How often do you visit the petrol station? A sound exhaust system facilitates better fuel economy. If you start refueling your car more often, there could be a problem with your exhaust. Talk to your mechanic before the problem worsens. 

4. Bad Smell

The exhaust system directs the harmful gasses out. In case of a leakage, gasses will sneak into the car. They are dangerous to your health. So, if you start smelling a strange smell, take action immediately. 

5. Poor Performance

A failing muffler will affect the engine performance. Accelerating becomes tricky and worsens if you don’t fix the leak immediately. When driving, the tailpipe will produce a cloud of smoke. So, if your car starts causing excess air pollution, the muffle could be having an issue. 

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Dangers of Driving With a Broken Flex Pipe

So, can you drive with a broken flex pipe? It’s a bad ideaYou risk breathing in carbon monoxide that can quickly kill you. Other than being a health hazard, broken flex pipes will produce a loud noise that’s so uncomfortable. The car will start to vibrate, and that’s uncomfortable. The more you ignore the problem; the vibration will increase the leak. Repairing a bigger hole can be costly. You may have to replace the entire exhaust pipe. 

If you fail to repair your exhaust pipe right away, it will deteriorate with time. As a result, you will incur a high cost that you could have avoided. For instance, the excess heat in your engine can damage your catalytic converter. Replacing the catalytic converter will be expensive. You will also require higher fuel costs. You will also have trouble with the law for driving a car that is not in the right conditions. So, if you realize that your exhaust pipe has a problem, take action immediately. 

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Exhaust Leak Repair Cost

You already know that the problem is a result of your exhaust leak. So, you’re wondering how much to fix an exhaust leak? It will depend on how severely your exhaust is damaged. Do you want a rough figure? You can plan for 160 dollars – 330 dollars. To get the exact cost, you should talk to your mechanic. 

How to Fix an Exhaust Leak?

1. Using An Epoxy/ Exhaust Tape

You have the option of repairing the leak or replacing the exhaust pipe. It will depend on the damage to the exhaust pipe. When fixing, you can decide to seal the hole with exhaust tape or repair it with epoxy. 

Whether you are using exhaust tape or epoxy, it will not stick over dirt and grime. That is why you require a steel toothbrush to scrub the area with the leak. Since debris and dust can get into your eyes, wear protective gear. 

The sandpaper should help you clear the dust bits and rough up the surface. Use acetone to wipe the entire area. Inspect if the hole requires a patch or epoxy. If it’s small, epoxy or an exhaust tape is enough. Run the car, once the pipe warms, seal the leak with the exhaust repair tape. Note that not all exhaust pipe requires you to seal when warm; some require a wet surface. So before using the exhaust tape, read the instructions first. You can also seal with epoxy or seal with both epoxy and exhaust tape. 

2. Use A Patch

You can’t seal a large hole with exhaust tape. You require a patch. The local auto parts store should have patches that you can purchase to help you seal the hole. Alternatively, you can innovate one. Start by evaluating the size of the patch that you require. Use a pair of scissors to cut it from an aluminum can. Apply enough epoxy around the area that has a leakage. Place the patch on the area and ensure that it seals the entire hole. Use a wooden dowel to apply the epoxy to your patch. 

There is no harm in fixing the patch on your own. But if you have any challenges, it is vital to seek help from your mechanic. 

Also Read: Best Exhaust Tip for Deep Sound


An exhaust system helps to direct the harmful gasses from your car. Any leak will cause the gasses to sneak into your vehicle, causing a health hazard. It will also produce excess noise. A hole in your muffle brings various problems. Apart from causing excess fuel consumption, it causes vibration in your engine. If the exhaust pipe fails to remove the hot fumes, they can damage the catalytic converter that is expensive to replace. It affects the performance of your engine, making acceleration difficult. The repair cost will depend on how the exhaust pipe is damaged. 

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