We tend to ignore the noises our tools, equipment and even vehicles make. For instance, that squeak from under the hood of your car. If it keeps up and never seems to get worse, chances are good that you’ll eventually learn to ignore it. The same thing applies to your garage door. Chances are very good that you barely register the rattles, creaks, and other noises made when it opens and closes. However, just as with our cars, tune-ups help ensure that those noises really are harmless.