Hydraulic Brake System Bleeding
Warning: Refer to
Brake Fluid Irritant Warning .
Warning: Refer to
DOT 4 Brake Fluid Warning .
Caution: Refer to
Brake Fluid Effects on Paint and Electrical
Components Caution .
|
Caution: When adding fluid to the brake fluid reservoir or to the
clutch fluid reservoir, use only DOT-4+ brake fluid from a clean,
sealed container. This polyglycol brake fluid is hygroscopic and
absorbs moisture. Do not use fluid from an open container that may
be contaminated with water. Improper or contaminated fluid could
result in damage to the system components. |
Use GM recommended brake fluid, or equivalent DOT-4+ brake
fluid. Refer to
Adhesives, Fluids, Lubricants, and Sealers .
| 1. |
Place a clean shop cloth
beneath the brake master cylinder to prevent brake fluid
spills. |
| 2. |
With the ignition OFF and the
brakes cool, apply the brakes 3-5 times, or until the brake pedal
effort increases significantly, in order to deplete the brake
booster power reserve. |
| 3. |
Remove the brake master
cylinder reservoir cap. |
| 4. |
Install a customary brake
bleeder adapter (1) to the brake master cylinder reservoir.
|
|
Note: Follow
manufactures instructions.
|
| 5. |
Connect the customary brake
pressure bleeder (2) to the brake pressure bleeder adapter
(1). |
| 6. |
Charge the hydraulic brake
system up to 2 to 2.5 bar (29 to 36.3 psi)
. |
| 7. |
Bleeding sequence of bleeder
valves: |
| |
7.1 |
Rear right bleeder
valve. |
| |
7.2 |
Rear left bleeder
valve. |
| |
7.3 |
Front right bleeder
valve. |
| |
7.4 |
Front left bleeder
valve. |
| 8. |
Bleed the hydraulic brake
system according the bleeding sequence above. |
| 9. |
Connect transparent hose (2)
hose to respective bleeder valve. |
| 10. |
Open bleeder valve with
suitable brake pipe wrench (1) and allow brake fluid to flow out
until clear brake fluid with no bubble emerges. |
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