power steering issue

Thanks everyone. I took that valve off and took it apart today. Cleaned it up with very fine steel wool and put it all back together. Valve was pretty nasty and didn't slide very well. Moves very easily now. I still have to fine adjust it. It goes to the left now. I found something that said if car turns left- move valve down. turns right- move valve up. I will get it fine tuned tomorrow. Thanks again.