Need a vacuum routing for the climate/vents. Heat all the time now....

December 02, 2011, 09:37:32 PM

So i hooked up the heater core today after the previous owner disconnected the coolant hoses.

I hooked up the hoses and there was no leaks. :D But the in the floor position, the fan did not work. So I replaced the heater control valve, and it worked. So all of last winter, I froze in the car thinking that the heater core was leaking, but its solid.

So now, its warm all of the time. Its not super hot in the car, but warm. The a/c used to be able to hang meat (seriously cold air) in the car, now its kinda useless (warm).

So obviously it was something with the control system that made the last owner unhook the coolant hoses to the core. Either the vacuum lines are messed up/broken/hooked up wrong or the control unit defunt.

There is 3 vacuum lines coming out of the firewall (two of which are going to the heater valve, which I am not sure is correct), and the 3rd is going to a delay valve/tee which has a connection to manifold vacuum and another going forward to what I think is a vacuum tank in the front fender.

It has the 1984 Auto Climate Control system (non-electronic). Does anyone have a vacuum routing for the climate control system for the car???