I thought I'd let you know what happened. The water inlet valve I installed seems to be working fine but this dishwasher has some other issues. For one, it never shuts off. I ran a couple test loads (still in my garage) and though the owner's manual said the cycle should take between 64 - 84 minutes, after 2 hours, this thing was still cleaning the dishes. It keeps filling, washing, draining, over and over. I've run 4 test loads through it and each time, it keeps going and going and sometimes, it will drain the water out within seconds of filling it. If I had to guess, I'd have to say the board or 'brain' was messed up (sort of like me).
Oh well, I'll give it away on Craigslist and move on to something else. Thanks to everyone with their advice.