[kenn]

Hello, Geezer, I am thankful for your help as I am on this site quite a lot and think of your input highly.
I have been meaning to post pictures of my truck for years and have not done so for the simple reason that I have not made my daughter do it (one day I will).
My phone plugs into the wall. When I type my fingertip hurts and this computer is at my work.
After I rebuilt my engine, I connected the heater hoses where I removed them from (core intake at water pump thru piping and return at radiator) even Thoe the pictures in the book showed otherwise. After working on the AC and heater I did not have adequate heat.
I now have the heater core intake hose connected to the intake manifold by the tstat housing, in that line there is a pipe system that I think is a vacuum controlled valve that is not stopping the flow. That is what I am trying to learn, does the flow stop at some point in the heater if it is switched off at the controller in the cab ?