C Tahoe 2WD V8-5.7L VIN R (1996)
8. Attach a hose to the bleeder valve.
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Immerse the opposite end of the hose into a container partially filled with clean brake fluid.
9. Open the bleeder valve at least 3/4 of a turn and allow the fluid to flow until no air is seen in the fluid.
10. Tighten the bleeder valve to 13 Nm ( 110 lb. in. ).
11. Repeat Steps 9 through 11 at all wheels.
12. Check the brake pedal for "sponginess."
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Repeat the entire bleeding procedure if this condition is found.
13. Disconnect the hose from the bleeder adapter.
14. Remove the bleeder adapter.
15. Fill the master cylinder to the proper level.
Manual Bleeding
BLEEDING BRAKE HYDRAULIC SYSTEM
Bleeding is necessary if air has entered the hydraulic brake system. It may be necessary to bleed the system at all four wheels if a low fluid level allowed
the air to enter the system or the brake pipes have been disconnected at the master cylinder or combination valve. If a pipe is disconnected at one wheel,
then bleed only that wheel.
The time required to bleed the hydraulic system when the master cylinder is removed can be reduced by bench bleeding the master cylinder before
installing it on the vehicle.
Manual Bleeding
If the vehicle is equipped with a vacuum booster, relieve the vacuum reserve by applying the brakes several times with the engine off.
NOTICE: Brake fluid will damage electrical connections and painted surfaces. Use shop cloths, suitable containers, and fender covers to prevent the
brake fluid from contacting these areas. Always re-seal and wipe off brake fluid containers to prevent spills.
Tools Required: J 28434 Wheel Cylinder Bleeder Wrench
1. Fill the master cylinder reservoir with Delco Supreme 11® Hydraulic Brake Fluid GM P/N 1052535 or an equivalent DOT 3 motor vehicle brake
fluid.
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Maintain the fluid level during bleeding.
2. If the master cylinder is suspected to have air in the bore, bleed it before any wheel cylinder or caliper.
A. Disconnect the forward brake pipe connection at the master cylinder.
B. Allow the brake fluid to flow from the connector port.
C. Connect the brake pipe but do not tighten.
D. Slowly apply the brake pedal and allow the air to bleed from the loose fitting.
E. Tighten the fitting before releasing the pedal.
