www.1aauto.com 1A Auto shows you how to replace the vent door actuator on a 1998 Ford Explorer. This process is the same for 1998-2001 Ford Explorer, 2001-2005 Sport Trac, 2001-2003 Explorer Sport, 1998-2000 2005-2007 Ranger, and 1998-2001 Mercury Mountaineer; and similar for 2002-2004 Ford Expedition and 2002-2004 Lincoln Navigator.