Join Date: Jul 2004
Location: Redondo Beach CA
Looking at your picture, going from left to right, the left post obviously goes to the battery and powers the rest of the car. The next post, usually labelled S, the wire going to that will only (should only) be powered when the key is turned to start. That energizes the solenoid so that power flows to the small post on the right labeled 'I' and the large post that goes to the starter. With the key in just the on position, you may see power at the I post and you may not. You should NOT have any power at the starter side unless the key is turned to start. As to the red wire on the starter post I have no idea, is the wiring stock or is it an aftermarket harness? Sotck starter or gear reduction unit?
69 Mach One, 428CJ, 5 Speed, 3.91's.