I'm trying to find a routing pic for the heater hoses. Tried google pic search. looking at the heater core, which hose get the "T" fitting for the hose going to the intake? Which hose goes to the waterpump and which to the thermostat? pics would be great. Is there supposed to be a heater valve also? Mine doesn't. I see a free hanging plug that looks like it may have been attached to one at some point. . TIA