To repair a car tire puncture using tire puncture sealant, acquire some sealant, read the manufacturer's instructions closely, remove the object that punctured the tire, remove the valve cap, and connect the tip of the sealant tube to the tire valve stem. Finally, close the puncture with sealant.
To repair a car tire puncture using a tire plug kit, use a tire wrench to loosen lug nuts while the car is on the ground. Next, use a jack to lift the car, take out all the lug nuts, and remove the car wheel. Carefully inspect the tire to find the object that punctured it. Make sure there is nothing else stuck in the tire, and make sure there are no spots that are too worn-out. Remove the object using a pair of pliers.
Acquire a tire plug kit, and use the rasp tool included in the kit to clean the hole in the tire. To do this, put the tool inside the hole, and quickly move it in and out of the hole. Find a plug in the kit, fill it with cement, and put it inside the puncture using the insertion tool. Make sure an inch or so of the plug is sticking out of the tire. After several minutes, remove the excess plug material.