Then, wrap the exhaust tape around the pipe, covering the leak with at least two layers. Finally, mix the epoxy together, apply it to the leak with a wooden dowel, and let the mixture cure completely before driving your vehicle. An exhaust leak can create a great deal of noise, increase your emissions and cause the check engine light in your vehicle to come on. Extensive leaks can fill the cabin of your vehicle with carbon monoxide, which can make you feel sick or even fall asleep while driving. While extensive rusting or rotting of your exhaust system will require replacing all or parts of it, small leaks can be resolved using exhaust tape or epoxy. Depending on how the system is laid out, if the O2 sensors are placed downstream from the flex pipe, there may be fault codes set and running problems in the event of a failure.

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Dab the epoxy over the leak, then use the wooden dowel to spread it around the area. Leave a thick layer of epoxy over and around the leak. Other forms of exhaust repair tape needs to be wet before applying. Once you have scraped off most of the dirt and grime, take a piece of fine grit sandpaper and use it to scrub the portion of the pipe you need to repair. Sandpaper will remove the last bits of dirt as well as creating tiny micro abrasions in the metal to help the tape or epoxy adhere to it. Depending on the type of damage you identify on your exhaust piping, your repair options may vary. If the exhaust piping is covered in extensive rust, that entire component of the exhaust may need to be replaced by a professional. Small scrapes or holes can be addressed without cutting out portions of the exhaust. Never work beneath a vehicle supported only by a jack. Once the vehicle is jacked up, place jack stands beneath the vehicle to support its weight.

However, if the pipe is fairly damaged, you may need to have a mechanic replace it. To locate an exhaust leak, you’ll need to jack your car up, inspect the exhaust piping underneath the car, and look for any rusting, cracks, or holes. Just make sure to wait a few hours after you’ve turned off your car to do this so you don’t burn yourself on the exhaust pipe. Once you’ve found the leak, you’ll need to clean the area with a steel toothbrush, sand the pipe around the damaged area, then wrap exhaust tape around it. 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.

Most shops will be limited to bolting on OE-style parts. An exhaust shop, on the other hand, would have more options as far as fabricating or adapting cheaper universal parts, if state regulations allow. This post is all about how to fix exhaust pipe without welding. I understand welding or getting a new exhaust could be quite expensive. But this method I have just highlighted won’t get you to break the bank. The process is also quick and straightforward, as you can see from the explanation. It will buy you some more time to save up for a new exhaust or do other repairs on your exhaust pipe.