What was wrong with the dis block you had???? What a goat rope if you don't fill us in. The tech forum is not only to get your car running but to help others in the future. You can't just say, "I don't know the science behind it". Next you will be praying over it. John shows pic on how it works and goes into how one circuit can get plugged. This doesn't describe your problem. Vikki says it can get stuck and you can clean it. Whats up????? Come on Joe, it's give and take here. Give us the info.