Hey guys. I am at a bit of a loss here on where I should proceed.
When I got my car it had the standard full heat issue. Replaced that $.50 clip under the dash, and most of the heat went away. Now it seems that no matter what temperature setting that I have the heater on it delivers warm air-not warm enough in the winter and too warm in the summer
I have vented the coolant several times from projects such as changing my thermostat

but that didn't help.
Where should I proceed? I tried playing around with the heating valve right in front of the firewall, seemed kinda soft, but was unsure where to go. Also could be the actual temperature control unit I suppose.
Basically, I don't want to go around changing random parts so I was hoping for some guidance from the brain trust.
Thanks guys!