If you’re like most people, you probably shim your car door when it starts to stick. But if you’re like some people, you might not know how to do it. Here’s how to shim a car door:

  1. Locate the shim. Most cars come with a thin piece of metal that slides between the door and the frame when it’s closed. This is the shim.
  2. Remove the old shim if there is one. If there isn’t one, just use your fingers to push down on either side of the door until it starts to move and then pull up on the edge of the door until it snaps into place.
  3. Insert the new shim by pushing it between the door and frame and then snapping it into place. ..