W wbrophy Member Joined Dec 2, 2003 Oct 21, 2007 #1 What is it for and when do you need to press that little button on the brass unit?
chopped39 Well-Known Member Joined Aug 30, 2004 Oct 21, 2007 #2 I believe it is the pressure differential part of the prop valve. if you have a wheel cylinder or brake line that starts leaking the valve will slide and block off leak and trigger the light.
I believe it is the pressure differential part of the prop valve. if you have a wheel cylinder or brake line that starts leaking the valve will slide and block off leak and trigger the light.
