There are two common ways to fix a tubeless tire. The first is a patch that is installed on the inside of the tire. The other method is to plug it--a patch which goes through both sides of the tire. A do-it-yourself plug kit is not safe for use on a passenger vehicle. They are more for tires on a wheelbarrow or a lawnmower. The methods require different steps.
Locate the hole in the tire and mark it with a piece of chalk. An easy way find the leak is to submerge the tire in soapy water. You can also use a spray bottle with soapy water. Watch for bubbles, an indicator where the hole is. Be sure the water doesn’t have so many suds that you won’t be able to see where the bubbles are coming from.
Pull the object out with a pair of pliers.
Ream out the hole with a tire reamer but be careful not to make the hole so big that the plug won't fit. A reaming tool is inserted into the tire with the pointed end first. Then you remove and insert repeatedly. The sawing motion will remove any debris from the hole and make the hole large enough for the plug to fit inside.
Insert the plug into the hole with the tool provided. You will have to force the tool through the hole; it will be tight. Turn the tool a full 360 degrees to be able to pull it out of the tire.
Remove the piece of plug that is hanging out of the tire by cutting it off with a razor blade.
Remove the tire from the vehicle.
Locate the hole in the tire and mark it with chalk. If there is an object stuck in the tire, remove it with a pair of pliers.
Put the tire on a tire machine and take the tire off of the rim. If a tire machine is not available, you can step on the wall of the tire, then pry the tire off with a crowbar. Insert bar between tire and rim and rotate it to force tire off. Do this on both sides to remove tire. This will take some work to get the tire off but it is possible.
Locate the hole and use a tire reamer to ream out the hole.
Sand the interior of the tire where the hole is so it is cleaned off for the patch.
Put rubber cement around the hole and let dry.
Place rubber cement on the back of the patch and put it on the hole. Allow the patch time to dry before trying to install it back on the rim.
Replace the tire on the rim and air the tire up. The tire should hold air.
