Webshots - Wallpaper / Screen Savers Webshots, the best in Wallpaper, Desktop Backgrounds, and Screen Savers since 1995. My Engine Cranks but Won't Start (6 Reasons Why) - AxleAddict Mar 04, 2021Question: I recently changed the spark plugs in my 1998 Ford Explorer Sport and the ignition coil and it still won't start. Why won't my Ford Explorer start? Answer: Make sure you got good spark. Then check for fuel pressure. Other possibility is a faulty sensor – camshaft position sensor, or crankshaft position sensor are the usual suspects.