It's hot too bad, 7/8 wrench I believe. Once you get it loose,you should be able to spin it out with your fingers. There may be some crud around it that needs to cleaned off. The 3 vacuum lines that plug in to it are molded together and only can go on one way. There is a small nipple on the vacuum switch that you align with the hose connector.

 

Thanks jck1961.... I am gonna pick up the switch this weekend... It still hasn't made the noise again but i am gonna replace it before it does.... But Ty again...