Chrysler Repair: cavaleir, rite tools, chevy cav

Question
i just found a hose that is missing in my 1991 chevy cav it comes from the heater core and i cant find where it was supposed to go from there.
it is one of three from the heater core looking at the front of the vehicle it is the first port looking from left to right do you know where it should be going  

Answer
Marvn,someone has by-passed the heater core"it probably leaks" You are goen to have to get new hoses I'm shure.
And a new core I have replaced many !The hoses go to pipes
that are at the rear of the engine.The core it easy to replace if you have the rite tools. good luck.  tm