Need view 2000 camaro a/c vacuum hose routing

What are you saying is it broken or missing..
Their is a decail that covers the emmissions hose routing .
However there is always a trace of ware the hose was routed and connected look around the answers are their if you look at them fairly .

Air Flow Control
Air flow control is accomplished in the following manner:

• Primary control is through the function selector knob , mounted on the heater function selector switch, which is part of the heater control .
• The function selector knob has the following positions: OFF, PANEL, PANEL/FLOOR, FLOOR, FLOOR/DEFROST and DEFROST.
• The heater function selector switch combines a vacuum selector valve with an internal electrical switch.

• The vacuum selector valve directs source vacuum to various vacuum control motors (18A318) . Refer to the System Airflow Schematic and Vacuum Control Charts.
• An internal single-pole electrical switch is also controlled by the selector. The switch controls the electrical supply to the heater blower motor switch (18578) .
• The position of the function selector knob determines the manner in which the system will operate.
• Each position of the function selector knob is detented for positive engagement.
• You probably have a vacuum leak , Pull heater control panel an check for vacuum . A broke vacuum hose or The vacuum selector valve is bad ! Or check for a vacuum hose in the engine compartment being off somewhere !
  

A vacuum hose is what connects the inlet valves of a vacuum to the bags and filters.---------------------------------------------------------------------------
Original Launch X431 Master

http://schematicsdiagram.blogspot.com/2011/12/vacuum-hose-routing-diagram-for-1995.html

Sounds like your vacuum line is off to the heater controls. Check the vacuum.

It does not hook to throttle body , it hooks to a vacumn port on the intake manifold. Follow hose from cruise control module to the tee-three-way connector on firewall. Over time the tee will fall apart and will leak One hose goes to the vacumn port, one to cruise module,one to ac contols.

i had same problem check pcv valve on valve cover to make sure not stuck

Try your local public library, they have many car makers service manuals. Make a copy of the vacuum routing diagram page so you don't have to check out the book.

You have a vacuum leak. Engine vacuum is used to move the doors that control airflow for the heat and ac.