Hi, thanks to all who responded to my rather uneducated questions about the bleeders. I'm wondering about a couple of other things now. One is, the two large radiator hoses that run across the engine
compartment, they are "stacked" on top one and a bottom one. The way my van was set up, the top hose went to the lower of the two necks on the engine, and of course the lower hose (using the H bleeders as
reference here) went to the upper neck. Is this right? Does not seem quite logical, and am thinking maybe the PO got the two switched? Ok one more, how can I tell which is the "supply" hose on the heater core?

thanks
Mark...