I recently purchased a 2003 Discovery. At first it would start just fine. After a week, I had to play with the shifter to get it to crank, after finding the “sweet spot” or perfect position it would start just fine. Now it will not crank at all. All the interior lights work, dash lights, AC, radio, widows, etc. They all work just fine. I know this is not a battery issue. I’ve read some related forums but I’m not sure where to start. Any help is greatly appreciated!