How To Fix A Hole In Your Exhaust? 3 Ways to Fix an Exhaust Pipe Without Welding new for 2022

How To Fix A Hole In Your Exhaust? 3 Ways to Fix an Exhaust Pipe Without Welding
How To Fix A Hole In Your Exhaust? 3 Ways to Fix an Exhaust Pipe Without Welding

You’ve got a hole in your exhaust pipe and you don’t know how to fix it.

Not only is this an eyesore, but it’s also dangerous. A hole in your exhaust pipe can cause harmful emissions to leak out and pollute the air. Then, How To Fix A Hole In Your Exhaust?

Amortips got three solutions for you that don’t require welding. All of these methods are easy to follow and will have your exhaust pipe fixed in no time.


Materials YOu Need To  Fix A Hole In Your Exhaust

Materials YOu Need To  Fix A Hole In Your Exhaust
Materials YOu Need To  Fix A Hole In Your Exhaust

To seal leaks, you do not need to purchase costly materials. All of the supplies mentioned below may be purchased at your local shop for a reasonable price.

  • Gloves for your hands
  • Sandpaper
  • Brush made with metal wire
  • Water that is soapy
  • Putty
  • Bandage for mufflers
  • Band clamp for exhaust

How To Fix A Hole In Your Exhaust?

How To Fix A Hole In Your Exhaust?
How To Fix A Hole In Your Exhaust?

Small cracks or pinholes can be sealed using just epoxy or exhaust tape, but larger holes will need a patch. If the leak is a thin crack or small hole, you can proceed without purchasing or making a patch to help. If the hole is larger, you will need a patch as well as epoxy.

Way 1: Detecting an Exhaust Leak

Place the car on a flat, sturdy surface.

To detect the exhaust leak and fix it, you will need to jack up the car. When you jack up a section of your automobile, the weight of that section is concentrated in the relatively tiny region under the jack. It is critical that you choose a surface that can handle that weight. You also need a flat surface since jacking up a vehicle at an angle is quite dangerous.

To jack up an automobile, you may use either blacktop or concrete.

Never jack up a vehicle on grass, dirt, or gravel because the jack may tip over.

Allow time for the exhaust to cool.

While the engine is operating, the exhaust pipe in your car may reach very high temperatures. To prevent burning yourself, let the car cool for a few hours before trying to work on the exhaust.

It may take many hours for the exhaust to cool enough to touch.

Touch your car’s hood. If it’s still warm, both the engine and the exhaust are quite hot.

Raise the car.

Place a scissor or trolley jack at one of the vehicle’s authorized jack locations. If you’re not sure where these jack points are, consult your vehicle’s owner’s handbook for assistance. Jack up the vehicle until it is high enough to work underneath securely with the jack in the proper position.

After jacking up the car, install jack stands underneath it to support its weight.

Never work under a car that is solely supported by a jack.

Examine the exhaust pipe.

Inspect the exhaust pipe from under the car, beginning at the front and working your way back. If you know where the leak is likely to be, you may start your examination there. Examine the surface for evidence of deterioration such as scratches, corrosion, fractures, or holes.

Exhaust leaks in lower automobiles may be caused by the undercarriage of the vehicle bottoming out on things like speed bumps or potholes.

Exhaust leaks are often caused by rust. Rust will cause a leak if it penetrates all the way through a pipe.

Pipe cracks are another major source of exhaust leaks.

Start the vehicle to aid in the detection of leaks.

If a visual investigation fails to identify the source of the leak, have a friend start the car. The leak should be visible from underneath the automobile or truck as puffs of exhaust smoke escape from it.

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Working beneath a running vehicle requires tremendous caution. Maintain a safe distance between your hands and any moving components.

Before starting the car, make sure it is in park (for automatic transmissions) or in neutral with the wheels chocked (for regular transmissions).

Determine the degree and nature of the damage.

Your repair choices may differ depending on the sort of damage you discover on your exhaust pipe. If the exhaust pipe is heavily rusted, the complete exhaust system may need to be replaced by a professional. Small scratches or holes may be repaired without removing sections of the exhaust .

Repair small holes using exhaust tape or repair putty.

Larger holes will need a piece of aluminum and epoxy to seal.

Way 2: Repairing a Leak Using Epoxy or Exhaust Tape

Using a steel-toothed brush, scrub the area around the leak.

Because the exhaust is positioned on the vehicle’s bottom, it is often caked with mud, grime, and rust. Once you’ve located the leak, clean the area around it with a steel-toothed brush. Most fixes will not stick or seal if they are performed over filth and grime.

Scrub the whole length of the pipe surrounding the leak, including the top side if possible.

Wear eye protection when washing the area to avoid putting particles in your eyes.

Prepare the pipe’s surface with sandpaper.

After you’ve scraped away the most of the filth and grime, use a piece of fine grit sandpaper and scrub the section of pipe that has to be repaired. Sandpaper will remove any remaining debris while also causing microscopic micro abrasions in the metal to aid in the adhesion of the tape or epoxy.

If you’re going to use exhaust tape, be sure you sand the pipe all the way around.

Roughening up the metal’s surface will result in a stronger connection for the patch.

Wipe off the surface with acetone.

After brushing and sanding the pipe surrounding the leak, clean it with acetone to assist the exhaust epoxy attach to the metal. Because acetone is the main element in nail polish remover, it will work effectively for this purpose.

While wiping off the pipe, take care not to get acetone in your eyes or lips.

Many retail shops sell acetone in the cleaning chemicals department, and nail paint remover in the health and beauty section.

Determine if the hole is small enough to be filled without the use of a patch.

Small fractures or pinholes may be filled with epoxy or exhaust tape alone, but bigger holes would need a fix. If the leak is just a little fracture or hole, you may continue without buying or manufacturing a repair. If the hole is bigger, a repair and epoxy will be required.

Attempting to fix a hole that is too wide without a patch might result in an unsatisfactory seal or the exhaust leak reappear after a few hours of driving.

Wrap the pipe with exhaust tape.

Wrap exhaust repair tape around the pipe completely, concealing the exhaust leak with at least two pieces of tape. Wrap the tape around the pipe for a few inches on both sides of the leak as well. Different types of exhaust repair tape may need different application procedures, so properly study the directions before you begin.

Some exhaust repair tape has to be placed to heated pipes to form a seal, so start the car and let it run for a few minutes before applying.

Other types of exhaust repair tape must be moist before application.

Exhaust repair tape is available at most auto parts shops.

Combine the epoxy and apply it on the leak.

If you’re using epoxy to plug the leak, combine the two sections using a wooden dowel. When the two ingredients are combined, it begins to heal instantly, so apply it to the leak as soon as possible. Apply the epoxy to the leak, then distribute it about using the wooden dowel. Over and around the leak, apply a thick coating of epoxy.

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After applying the epoxy, you may cover the leak with exhaust repair tape.

Because various kinds of epoxy cure at different speeds, check the directions on the packaging to determine how long to let it set before driving the car.

Way 3: Using a Patch to Aid in the Sealing of Leaks

Determine the size of the patch required.

Exhaust patch kits are available at your local auto parts shop, however chopping up a piece of an aluminum can can serve just as well as a repair for a bigger exhaust leak. After washing and disinfecting the area, calculate the size of the patch needed to fix the leak and allow at least a half-inch of additional material beyond the hole itself.

If the patched area is more than three inches, that section of the exhaust will most likely need to be replaced.

When purchasing a patch kit, read the instructions carefully to determine the amount of the leak that the kit can repair.

Fit an aluminum patch over the leak.

Cut your aluminum can into a patch big enough to plug the leak using a pair of heavy duty scissors. You may also wrap the can around the pipe. For minor leaks, just cut an aluminum circle half an inch bigger in diameter than the hole.

Wear gloves while cutting a can or an aluminum patch to prevent getting cut by sharp edges.

The best seal is achieved by wrapping the can or patch all the way around the pipe.

Apply epoxy to the area around the leak.

Mix it up and apply it to the pipe surrounding the leak much as you would when sealing a leak with epoxy. Apply enough epoxy to make a seal for the repair, but not so much that it starts to seep into the exhaust pipe.

Apply the epoxy to an area around the leak that is the same size as the repair.

Apply the majority of the epoxy to the area surrounding the leak and a lighter application all the way around the pipe if you want to wrap the patch all the way around the pipe.

Cover the leak with the patch.

Place a tiny patch directly over the hole, or wrap a big patch around the pipe. If you wrap the patch around the pipe, make sure the center of the patch is above the leak.

When you apply the patch, it’s OK if part of the epoxy squeezes out the sides.

Check that the leak does not spread beyond the patch’s edges.

Cover the patch with epoxy.

Apply extra epoxy to the patch’s edges using a wooden dowel. You may even use epoxy to cover the repair itself. This will keep the patch in place while the epoxy cures, as well as provide a more firm barrier to prevent any exhaust from leaking.

Make careful to seal the patch’s border with epoxy at the very least to prevent pinhole leaks.

If you covered the whole pipe in a patch, you do not need to coat the entire patch, but pay careful attention to where the patch joins the pipe on the opposite side of the leak.

Using hose clamps, secure a big patch in place.

If you wrapped the patch all the way around the pipe, tighten it with two hose clamps to create a tight seal. Position one hose clamp on each side of the leak on the pipe, then tighten the clamps into place over the patch using a socket wrench or flat head screw driver.

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Along with the patch and epoxy, the hose clamps will assist guarantee a tight seal.

When you’re finished, you may wish to snip the hose clamps’ surplus ends.

What are the symptoms that your exhaust system may need to be repaired?

What are the symptoms that your exhaust system may need to be repaired?
What are the symptoms that your exhaust system may need to be repaired?

The following are some of the most prevalent indications of a malfunctioning exhaust pipe:

  • Excessive engine noise
  • Your vehicle fails the emissions test.
  • Driving headaches and dizziness

What are the ramifications of a defective exhaust pipe?

What are the ramifications of a defective exhaust pipe?
What are the ramifications of a defective exhaust pipe?

The most apparent (and inconvenient) result of a defective exhaust is that your automobile fails its MOT.

MOT testers must approve an exhaust system if it meets the following criteria:

  • Be free of major leaks and corrosion
  • Be firmly fastened to the vehicle
  • Have the appropriate amount of silencers for the vehicle’s manufacture and model

How much does it cost to fix a hole in the exhaust?

How much does it cost to fix a hole in the exhaust?
How much does it cost to fix a hole in the exhaust?

The average cost for an Exhaust Pipe Replacement is between $350 and $450 but can vary from car to car. Holes or cracks in the exhaust pipe are repaired by welding on a new piece of pipe. If the damage is significant, the entire exhaust system may need to be replaced.

F.A.Qs: How To Fix A Hole In Your Exhaust?

Can you put duct tape on exhaust?

Duct tape is not a reliable technique for restoring damaged exhaust mufflers or pipes. Duct tape is composed of cotton mesh that is covered in polyethelyne and has a rubber-based adhesive beneath. It softens when it becomes hot, making it combustible.

What can I use to cover a hole in my exhaust pipe?

  • Use an Epoxy Bond. If the hole is tiny enough, epoxy may be used to seal it. …
  • Exhaust Tape should be used to wrap it. If you have a bigger hole, exhaust tape is an excellent option.
  • Make use of an Exhaust Clamp.
  • Use an aluminum patch to close the hole.

What does a hole in your exhaust sound like?

The most noticeable symptom of a hole in the muffler is noise. Cars that have holes in their mufflers will make loud, rumbling noises that get progressively louder as the size of the hole increases and the condition of the muffler deteriorates.

Can you still drive with an exhaust leak?

The dangers of driving with an exhaust leak are two-fold. First, the fumes from the leak contain carbon monoxide, which can be poisonous if inhaled in large quantities. Second, a leaking exhaust can adversely affect your car’s fuel efficiency, causing your engine to work harder and requiring you to fill up your gas tank more frequently. If you notice that your gas pedal vibrates while you are driving, this may be another sign that your exhaust system is leaks.


Fixing a hole in your exhaust pipe doesn’t have to be difficult, and it definitely doesn’t require welding. There are three main ways to fix an exhaust pipe without welding – using a patch, using a clamp, or using a sleeve. Which of these methods you choose will depend on the size and severity of the hole in your exhaust pipe. If you need help deciding which method is best for you, don’t hesitate to give us a call. We would be happy to help get your car back on the road as quickly as possible. Thanks for reading!

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