Car Talk — A solid rap or a few good jabs may be the best way to rekindle failing power-window motor

I have a perplexing problem with the driver’s-side power window in my 2003 Plymouth Voyager. About three years ago, I pressed the button to roll it down and nothing happened except a faint "click" sound. I figured I would need to take it in, but I went on with life. I continued to press the button out of habit when I went to...