G 20 Van V6-262 4.3L VIN Z (1993)
NOTICE:
When performing the 4WAL brake system bleeding procedure, the ignition switch must be in the "OFF" position or false diagnostic trouble codes
could be set to memory. If trouble codes are set, refer to section 5El "Clearing Diagnostic Trouble Codes" in the 1993 Service Manual.
Pressure Bleed Procedure
The pressure bleeding equipment must be of the diaphragm type. It must have a rubber diaphragm between the air supply and the brake fluid to prevent
air, moisture, oil, and other contaminants from entering the hydraulic system.
IMPORTANT:
You can expect to use two quarts of brake fluid to thoroughly bleed the system.
1.
Begin by attaching the pressure bleeder adaptor J29567 to the master cylinder (figure 1).
2.
Fill the pressure bleeder tank J29532 at least 2/3 full with Delco Supreme No. 11 Hydraulic Brake Fluid (GM P/ N 1052535) or an equivalent
DOT 3 motor vehicle brake fluid. The bleeder tank must be bled each time brake fluid is added.
3.
Charge the bleeder tank to 140-170 kPa (20-25 psi) and connect the hose from the bleeder tank to the bleeder adaptor.
