Ok. I see where I erred. When I applied 12 volt power to the "I" terminal, I was getting the same voltage reading on my multi meter from the "S" terminal. I thought that if I grounded the "S" terminal, I would get a large spark because I would be applying a ground to a positive current, however, this time around, I grounded the "S" terminal as you all said, and voila, no spark. And guess what? I got the click. I tested both old and new solenoids the same way, and I got a click from both. So great news on two fronts. Now I know how to test my solenoids, and also, now I know that both are in good working order, and now I can move on to another issue, but that is a different story.