OK, check it out.

I've searched. I've checked my Hanes manual and I've looked at the FSM. (I also accidentally posted n the 3rd gen section and it turned into a religious debate somehow... ???)

I cannot figure out where in the world the heater hose connects to the radiator. I know where it is (thanks to the FSM) but I can't physically find it in the engine bay. I know where the hose is that comes FROM THE HEATER out of the firewall but I don't know where it connects to the radiator.

Could anyone help me out that knows about this stuff? My problem is, the previous owner disconnected the heater hose for some reason or another and so I have no idea where it runs or what it goes to.

Please note: My logicon is not broken, I have already checked that. I am not sure about my core but I can't know until I physically attach a hose to it!!

So please, help a brother out. Pictures or wise words. Where are the hoses I need to be aware of? Where do they connect and how can I find them? SPECIFICALLY the one off the radiator.

Cheers,
Cody

 

The heater return line is the one that connects to the rad...it's at the lower hose bung at the bottom of the rad.

 

Ignore the red line:

 

the heater return hose comes out of the firewall and connectos to a metal line that runs down the passenger side frame rail and then connects to the lower radiator inlet

 

OK, I finally just sat there and looked around until I figured it out.

I do have hoses running through my bay and they look fine.

I have tested my logicon and it is working / the door is moving.

So now I need to know - do I just replace my heater core or is it possible that it just needs a flush or something?

Cheers,
Cody

 

Well, you can always try to flush it and see what happens.
In my experience, cars from warmer climes (where the heater gets used infrequently, if at all) tend to have the worst cores and need replacement more often.
The RX7 has one of the better heating systems I've ever had so if it's working right, you'll know.