Heater issues
 

I have a 1999 ford Ranger 3.0 2x4 auto that the heater core started leaking.
So I changed the heater core and know it will not blow hot air.
The control vale in one of the heater hoses was bad so I install a bypass pipe. Blew air through all of the hose and the heater core but still will not work, any Ideas?
Richard