GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2000 🢒 GL7 (Export) 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 HVAC Air Delivery/Temperature Control Schematics
Figure 1:

Front Air Delivery
Object Number: 645155 Size: FS
Figure 2:

Raer Air Delivery
Object Number: 645156 Size: FS
Figure 3:

Vacuums
Object Number: 645177 Size: FS