It’s the moment that every motorist dreads, a flat tire.  You don’t know if you ran over glass or hit a nail, but you need to take action.  You may need to call for road service, and then you have to have the tire fixed or do it yourself.  Surprisingly, it isn’t that hard to repair a tire yourself, and you can save the extra expense of having a repair shop do it.  Here’s how.

First, it is necessary to determine the location of the puncture.  You can do this by submerging the tire in water and watching where the bubbles come from.  Before you can patch the tire you must remove any foreign objects stuck in the tire.  You can pull out the object with pliers.  Be sure to pull out the object in the direction of the tread so you don’t do additional damage to the tire.

Now, use a tire reamer and clean out the hole from the inside of the tire.  Center the patch over the puncture to ensure proper sizing.  Take off the patch and coat an awl using cement.  You should run the awl in the hole a few times to make sure the damaged area is coated adequately.  Then, put a coat of vulcanizing cement directly on the patch and tire and let it dry.

Next, apply a layer of cement on the stem of the patch and then pull the stem through.  When the patch stem is all the way through the hole, cut it off.

Now, you are ready to get back out on the road.  With a little diligence you can do a quick tire fix and save yourself a trip to the repair shop.