On a 2001 Chevrolet Venture, the AC orifice tube (or expansion valve, depending on the specific model - some used orifice tubes, others expansion valves) is located
within the evaporator case, inside the dashboard. This means you won't see it without significant disassembly of the dashboard and HVAC system. It's not easily accessible for a simple visual inspection or replacement. Access usually requires removing the glove box and potentially other parts of the dash.
Therefore, you should consult a repair manual specific to your 2001 Chevrolet Venture. This manual will provide detailed diagrams and instructions on how to access and replace the component. Attempting this repair without a proper manual and the necessary mechanical skills could cause more damage.
