Following on from his previous article on diagnosing electric window problems, Steve sets out to show you how to change a faulty window regulator.    Window Regulators A window regulator lifts the window up or down when the switch is pressed. Problems with the window regulator can manifest as:  Window dropping to one side  An unusual noise when the window is going up/down  Window does not go up/down when the switch is pressed  Window moves slowly or do