Vacuum Bleeding

WARNING: This page does not describe the selected car, but rather 35 other vehicles, including the 1992 Pontiac Trans Sport, 1992 Oldsmobile Silhouette, 1992 Oldsmobile Bravada, 1992 GMC Yukon, and 1992 GMC Vandura Special. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Air tends to cling to caliper walls. When bleeding vehicles with disc brakes, lightly tap caliper to help remove air.

Fill master cylinder reservoir. Install vacuum bleed equipment to first bleeder valve to be serviced. See BLEEDING SEQUENCE under BLEEDING BRAKE SYSTEM .
Open bleeder valve 3/4 - 1 turn. Press vacuum pump to draw fluid into reservoir jar until no air bubbles are present in fluid flow. Close bleeder screw. Repeat procedure on remaining wheels in sequence.