[cbcchev]

Hi all so I am new here and looking for some help
I have a 1981 C 60 that when I shut it off the power steering pump boils over fluid. So I have read that the brake booster has a check valve that could be the issue. I see no internal check valve but I do see one that screws on and has a wire hooked up that looks like a small selenoid. How does this work ? Does anyone have a wiring diagram? Is there a manual for this truck online ?

any help would be appreciated


Shaun