Repairing Guides

how to repair muffler pipe

by Dixie Lynch DVM Published 3 years ago Updated 2 years ago
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A common repair involves:

  • Cleaning, wire brushing, and sanding the area you need to fix.
  • Warming up the exhaust system by idling the engine for a few minutes.
  • Placing a piece of aluminum (cut from a soda can) over the hole or crack you need to repair (unless you're using putty, you may use a metal screen), being ...
  • Using a patch or wrapping a tape around the damaged area of the muffler or pipe.
  • And securing the tape with a clamp or wire.

How to fix a loose muffler pipe?

How to Fix a Loose Muffler Pipe

  1. Lie on your back under the rear end of your vehicle where the muffler is located.
  2. Fit the proper-sized wrench on the bolts that hold the front bracket of the muffler onto the exhaust pipe exiting the engine.
  3. Push up on the muffler so it is flush with the vehicle frame.

More items...

What is the average cost of muffler repair?

You might be thinking about other repairs that will be necessary in the future. It is important to think about the future repairs you might have to make and the investment that will be. The average cost of a muffler repair is around $160 to $240. What Is A Muffler? A muffler is located in the back of your car.

Is a muffler remove the same as a straight pipe?

The muffler will likely be secured with clamps. You’ll need to remove those clamps. Once they’ve been removed, you’ll need to cut the muffler from the exhaust pipe. Once you’ve removed the clamps and have finished the cut, you’ll need to separate the exhaust and the muffler. You should be able to remove the muffler completely at this ...

How much to replace muffler with hole?

Your mechanic will be able to break down your quote into:

  • The cost of parts – including basics like pipe and gaskets
  • The labor cost
  • A limited or lifetime warranty on the parts used

How to fix a bent pipe?

How to stop a car from rolling?

Do you have to replace a muffler?

Can you replace a whole muffler?

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Can you patch a muffler pipe?

You can use an aluminum patch to cover holes of any size. Once you examine the extent of the damage, use a pair of heavy-duty scissors to cut a slightly larger aluminum patch. You may only need to cut a small piece of aluminum for small holes. With larger areas, wrap the aluminum around the pipe for effective sealing.

How do you fix a hole in a muffler pipe?

1:3613:00How to Find and Repair Exhaust Leaks EASY (Without a Welder)YouTubeStart of suggested clipEnd of suggested clipThis is like a play-doh you push it into the crack or the leak. And then it hardens like steel. ThenMoreThis is like a play-doh you push it into the crack or the leak. And then it hardens like steel. Then we have our muffler bandage. Which is like an ace bandage you wrap around the muffler.

How can I fix my muffler without welding?

1:386:47How to Repair the Exhaust Pipes without Welding them / Muffler FixYouTubeStart of suggested clipEnd of suggested clipSo obviously first step is to lift the car and place it on jack stands preferably on both sides andMoreSo obviously first step is to lift the car and place it on jack stands preferably on both sides and as high as possible because you're going to be under the car a lot then you might hit the saw to cut

Can you use duct tape on a muffler pipe?

No, duct tape is not a safe option for repairing damaged exhaust mufflers or exhaust pipes. Duct tape is made out of cotton mesh, and is covered with a type of plastic called polyethelyne, with a rubber-based adhesive underneath.

Will J-B Weld work on a muffler?

A: Because of the extreme temperatures of exhaust systems, we do not recommend J-B Weld for use on exhaust manifolds and catalytic converters. Nor do we recommend the product for repairs within the combustion chamber. JB weld might hold if you clean all the oil off from it.

Can I use aluminum foil on my exhaust?

Next put the aluminum foil around the can, sealing off, as much as possible, all openings that will let exhaust gases, and therefore noise, escape. Don't be stingy with the foil. Wrap a few turns around the repair, then wrap wire tightly around the foil to hold it in place.

How do you fix a cracked muffler?

0:157:52How to Repair a Cracked Muffler Cheap on a 2012 ... - YouTubeYouTubeStart of suggested clipEnd of suggested clipIt's not all the way but it's a fairly extensive. Right in there and maybe in here you can see whereMoreIt's not all the way but it's a fairly extensive. Right in there and maybe in here you can see where inside there. So what I've done is I scuffed up along the seam with a wire brush.

What is the best exhaust repair putty?

Permatex Muffler and Tailpipe Putty permanently repairs holes and leaks in exhaust systems. This two-pouch bonus pack seals out fumes at temperatures up to 2000 degrees Fahrenheit and is safe for catalytic converters.

What is the best way to fix an exhaust leak?

12:0722:34How to Repair an Exhaust Leak DIY (No Welding) - YouTubeYouTubeStart of suggested clipEnd of suggested clipWhatever it is what you would do is you would get a little bit of rtv. This is specifically made forMoreWhatever it is what you would do is you would get a little bit of rtv. This is specifically made for exhaust. Systems. So you could use it on here and it could heat up and it'll be fine.

Can I use Flex Seal on my muffler?

Some car owners are also wondering if they can use Flex Seal to fix leaks on their exhaust system. Manufacturers don't recommend using this product on car parts that are constantly subjected to high pressure and heat because it will affect its effectiveness, so it's best not to use it on your car exhaust.

Can you use electrical tape on a muffler?

Yes, you can, you can use it around your car exhaust manifold, or exhaust pipes. Flex seal is also a good option.

What kind of tape can you use on a muffler?

The Jumbo Tiger Patch Muffler or Tailpipe Repair Tape is a mechanically approved tape that you simply wrap-around your muffler or tailpipe and it permanently seals cracks and holes in mufflers and tailpipes in minutes with no tools required.

Can you drive with a hole in your muffler?

Carbon monoxide poisoning – Driving with a hole in your muffler can route exhaust fumes containing carbon monoxide back into your car's interior. Even at low levels, carbon monoxide can cause serious health issues for both adults and children.

Can flex tape be used on a muffler?

Some car owners are also wondering if they can use Flex Seal to fix leaks on their exhaust system. Manufacturers don't recommend using this product on car parts that are constantly subjected to high pressure and heat because it will affect its effectiveness, so it's best not to use it on your car exhaust.

Can I drive with a hole in my exhaust?

While you can technically drive with a broken exhaust, it's neither safe nor legal and poses a number of issues when you're out on the road. Whether your exhaust is simply cracked, is partially hanging off or has fallen off completely, it's an important part of your vehicle which needs your immediate attention.

What is the best exhaust repair putty?

Permatex Muffler and Tailpipe Putty permanently repairs holes and leaks in exhaust systems. This two-pouch bonus pack seals out fumes at temperatures up to 2000 degrees Fahrenheit and is safe for catalytic converters.

Make Your Initial Assessment

Before you start going to work, you need to assess the situation. While you might be eager to get started and repair your issue, you need to examine the region around the exhaust pipe you’re looking to repair.

Repairing Your Pipe Takes Patience

Because this is a common enough issue that many auto owners take into their own hands, there are a lot of commercial exhaust repair kids available. Follow the instructions carefully so that you’re able to replace or repair your muffler or pipes in a way that lasts for a while.

Preparing Your Car for Replacement

If it looks like the repairs are going to require you to get serious about replacing a section of broken or rusted pipe, you need to prepare your car.

Replacing a Section of Pipe

When it’s time to replace a section of pipe, you need to start by cutting off the piece that needs to go. The best tool for the job is going to be either a hacksaw, exhaust pipe cutter, or a tubing cutter with a chain.

How to fix a muffler that is not working?

If your muffler is the problem, you’ll need to loosen the exhaust clamps with a wrench, slide the exhaust and muffler apart, then hang your new muffler on the mounts. Then, spray exhaust sealant on the end of both pipes, slide them together, and tighten the muffler clamps back into place.

How to tighten muffler clamps?

With the piping seated properly, slide a muffler clamp over the area where the muffler pipe overlaps the other. Use a hand or socket wrench to tighten the clamp until it is not possible to move the pipes back and forth at all.

How to remove rust from exhaust clamp?

Once the fasteners have been thoroughly soaked in rust penetrator, use a wrench to remove the nuts holding the exhaust clamp in place. Make sure to use a socket or wrench of the correct size, as exhaust fasteners are prone to stripping or breaking.

How to fix a rusty muffler?

1. Spray rust penetrator on the exhaust clamps. If your muffler is not welded in place, it will be secured using muffler clamps. Spray a rust penetrator like WD40 onto the fastening hardware to break through some of the rust and grime that may have seized the nuts in place.

How long does it take for exhaust gas to cool off?

Wait for a few hours then place your hand near the exhaust pipe to see if you can feel any heat radiating off the metal. Touch the hood of your car.

What size adaptor do I need for exhaust pipe?

If the two pipes feel loose or can be wiggled, you will need an adaptor to match the correct size. Most exhaust piping comes in two or two-and-a-half-inch diameters. You will not be able to seal the wrong size pipe onto another pipe, but adaptors for most diameters can be purchased at hardware or auto parts stores.

Why does exhaust pipe break?

Exhaust piping can break for a number of reasons. Rust, cracks, scrapes and holes can develop over the lifetime of the vehicle and require repair. In some instances, the exhaust may be too damaged to be repaired and may require replacement, but you might be able to repair some less severe kinds of damage using common hand tools.

How do I seal a leak in my exhaust pipe?

Cover the area surrounding the leak with epoxy. Just as you would seal a leak with epoxy, mix it together and apply it to the pipe around the leak. Make sure to apply enough epoxy to create a seal for the patch, but don't apply so much that the epoxy begins to drip into the exhaust piping.

How to inspect exhaust piping?

From beneath the vehicle, inspect the exhaust piping starting at the front of the vehicle and working your way back. If you have an idea of where the leak may be, you can begin your inspection in that area. Look for signs of damage such as scrapes, rust, cracks or holes.

How big of a hole do I need to patch a leak in my exhaust?

After scrubbing and cleaning the area, determine how large the patch will need to be to cover the leak and leave at least a half inch or so of extra material beyond the hole itself. If the area that needs to be patched is larger than about three inches, that portion of the exhaust will likely need to be replaced.

How to fix a leak in a pipe?

Cut an aluminum patch to fit over the leak. Use a pair of heavy duty scissors to cut your aluminum can into a patch large enough to cover the leak. You may also choose to wrap the can around the pipe. For smaller leaks, you can simply cut a circle of aluminum that is a half inch larger in diameter than the hole.

How long does it take for exhaust to cool?

The exhaust piping in your vehicle can reach extremely high temperatures while the engine is running. Allow the vehicle to cool for a few hours before attempting to work on the exhaust to avoid burning yourself. It may take a number of hours to allow the exhaust to cool enough to touch. Touch the hood of your car.

Can you drive a car with an exhaust leak?

wikiHow Staff Editor. Staff Answer. Support wikiHow by unlocking this staff-researched answer. It is not advisable to drive a car with an exhaust leak because the exhaust fumes are toxic and may be leaking into your car; carbon monoxide poisoning is deadly and you cannot smell or sense its presence.

What happens when you jack up a car?

When you jack up a portion of the car, the weight of that portion will be centralized into the relatively small space beneath the jack. It's important that you choose a surface that can support that weight. You also need the surface to be level, as it's extremely unsafe to jack up a car at an angle.

How to fix a bent pipe?

To fix a bent pipe, your local auto parts store may lend you a pipe shaper tool to restore the pipe to its original shape. Also, make sure you have the necessary installation hardware like muffler clamps and/or U-bolts. When replacing parts, keep your system configuration within state and federal regulations.

How to stop a car from rolling?

Park your car in a well-ventilated area. Raise your vehicle and set it on jack stands or wheel ramps. Set the emergency brakes and block the wheels on the ground to prevent the vehicle from rolling. Block the front or rear wheels with wooden blocks to prevent the car from rolling while you work underneath.

Do you have to replace a muffler?

Often, you don't have to replace a whole pipe or muffler. Still, you need to fix the problem as soon as possible to prevent it from spreading and keep poisonous exhaust gases from entering the passenger area of your vehicle. With a few tools and the proper safety precautions, you can save a lot of money by patching, joining, ...

Can you replace a whole muffler?

Over time, water and acid content in exhaust gases combine to eat system components, leading to rusted, broken or leaking pipes and mufflers. Often, you don't have to replace a whole pipe or muffler.

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