Ford E-Series Van Heater Hose

What Is The Proper I.d. Of The Auxiliary Heater Hose? Inner And Outer Diameter. On My Vehicle This Diameter Appears To Be 5/8" But The...

Can Anyone Give Me Heater Hose Routing Instructions? I Recently Replaced My Heater Core And Can't Remember If The Hose From The Water Pump...

I Have Replaced The Heater Core, The Blower Motor, Water Pump... Van Heats Up To Normal Operating Temperature, Yet I Get No Real Heat. The...