Chances are, if you are an owner of the 1999 f150 pickup truck, you will have issues with the window switches. If you have to press the buttons really hard to get them to work, this may be the solution for you! First pop off the trim piece of the door that holds your switches. Lift the front of it first. It's just held by a clip, and lift up until it pops, then slide forward. Unplug the window switch wiring plugs, and use a knife, or a small flat head screw driver to get the switch out of the trim piece. Then use a knife to pop the switch apart. You will four copper contact leads, and if you look close, you will see some bright spots on them where they were making contact with the button legs. Scrape those spots with a knife, or sandpaper to shine them up a little more. Plug in your soldering iron, and add beads of solder to each point building it up just a little, don't get carried away, it only take a little bit of solder.
Here is the finished product! Snap it back together, and put it back in your door. Should be working like brand new again. Hope this helps anyone.
