Pressure Bleeding
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 1992 Pontiac Sunbird, 1992 Pontiac Grand Prix, 1992 Pontiac Grand Am, 1992 Pontiac Firebird, and 1992 Pontiac Bonneville. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Deplete vacuum reserve by applying brake pedal several times.
CAUTION:
Use only new, clean DOT 3 brake fluid. Never reuse contaminated brake fluid. DO NOT
use DOT 5 silicone brake fluid such as Delco Supreme No. 24. If necessary to bleed all calipers, follow sequence in BRAKE LINE BLEEDING SEQUENCE
table.
- Remove vacuum reserve from power unit by depressing brake pedal several times. Clean master cylinder cap and surrounding area, and remove cap. With pressure tank at least 1/2 full of brake fluid and charged with 10-30 psi (.70-2.10 kg/cm2 ) air pressure, connect tank to master cylinder using proper adapter(s).
- Raise and support vehicle. Attach bleeder hose to first bleeder valve to be serviced. See BRAKE LINE BLEEDING SEQUENCE table. Place other end of hose in clean transparent container. Partially fill container with clean brake fluid until end of hose is submerged in fluid.
- Open release valve on pressure bleeder. Open bleeder valve 1-2 turns, while noting fluid flow. When fluid flowing into container is clear and free of bubbles, close bleeder valve securely.
- Finish bleeding system in same manner using correct sequence. Remove pressure tank from master cylinder and check fluid level of master cylinder reservoir.
BRAKE LINE BLEEDING SEQUENCE
| Application | Sequence |
|---|---|
| "A" & "W" Bodies | RR, LF, LR, RF |
| "E" & "K" Bodies | LF, RF, LR, RR |
| All Others | RR, LR, RF, LF |