The 4x4 light is always on in my dash, and when investigating things that may or may not be the cause of that I came across a post that talked about the vacuum lines attaching to the front axle. These are on the passenger side of the axle and there are two lines. (I hope that's enough of a description so you know what I'm talking about.) from what I gather in two wheel drive the driver side line should have vacuum, and in four wheel drive the passenger one should have vacuum. If both are always have vacuum then there is a switch that needs to be replaced. (If I am wrong feel free to correct me)
My problem however, is that no matter what I am in (2H 4H 4L) I am only getting vacuum from the driver side line.
It also appears that there may be a small rust hole at the base of the post that the passenger line attaches to, so I imagine that piece needs to be replaced, but that doesn't explain why I am not getting vacuum to the line that connects to it.
Any help is very appreciated.