H3 V8-5.3L (2008)
Extended pump and motor run time could create excessive heat, and damage the pump and motor assembly.
1. Place a clean shop cloth beneath the brake master cylinder to prevent brake fluid spills.
2. If you disconnected the brake pipes from the master cylinder, you must perform the following steps:
1. Ensure that the brake master cylinder reservoir is full to the maximum-fill level. If necessary add Delco Supreme 11(R), GM P/N 12377967
(Canadian P/N 992667), or equivalent DOT-3 brake fluid from a clean, sealed brake fluid container.
If removal of the reservoir cap and diaphragm is necessary, clean the outside of the reservoir on and around the cap prior to removal.
2. With all the brake pipes installed securely to the master cylinder, loosen and separate the left front brake pipe (4) from the left front port of the
brake master cylinder.
3. Allow a small amount of brake fluid to gravity bleed from the open port of the master cylinder.
4. Reconnect the brake pipe to the master cylinder port and tighten securely.
5. Have an assistant slowly depress the brake pedal fully and maintain steady pressure on the pedal.
6. Loosen the same brake pipe to purge air from the open port of the master cylinder.
7. Tighten the brake pipe, then have the assistant slowly release the brake pedal.
8. Wait 15 seconds, then repeat steps 2.5-2.7 until all air is purged from the same port of the master cylinder.
9. With the left front brake pipe (4) installed securely to the master cylinder, after all air has been purged from the left front port of the master
cylinder, loosen and separate the right front brake pipe (3) from the master cylinder, then repeat steps 2.5-2.8.
10. Turn the ignition key to the ON position.
11. With the right front brake pipe (3) installed securely to the master cylinder, after all air has been purged from the right front port of the master
cylinder, loosen and separate the right rear brake pipe (2) from the master cylinder, then repeat steps 2.5-2.8.
12. With the right rear brake pipe (2) installed securely to the master cylinder, after all air has been purged from the right rear port of the master
cylinder, loosen and separate the left rear brake pipe (1) from the master cylinder, then repeat steps 2.5-2.8.
13. After completing the final master cylinder port bleeding procedure, ensure that all of the brake pipe-to-master cylinder fittings are properly
tightened.
14. Turn the ignition key to the OFF position. Depress the brake pedal 20 times.
3. Fill the brake master cylinder reservoir to the maximum-fill level with Delco Supreme 11(R), GM P/N 12377967 (Canadian P/N 992667), or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container.
Clean the outside of the reservoir on and around the reservoir cap prior to removing the cap and diaphragm.
4. Install the J 44894-A to the brake master cylinder reservoir.
5. Check the brake fluid level in the J 29532 , or equivalent. Add Delco Supreme 11(R), GM P/N 12377967 (Canadian P/N 992667), or equivalent
DOT-3 brake fluid from a clean, sealed brake fluid container as necessary to bring the level to approximately the half-full point.
6. Connect the J 29532 , or equivalent, to the J 44894-A .
7. Charge the J 29532 , or equivalent, air tank to 175-205 kPa (25-30 psi).
8. Open the J 29532 , or equivalent, fluid tank valve to allow pressurized brake fluid to enter the brake system.
9. Wait approximately 30 seconds, then inspect the entire hydraulic brake system in order to ensure that there are no existing external brake fluid
leaks.
Any brake fluid leaks identified require repair prior to completing this procedure.
10. Install a proper box-end wrench onto the RIGHT REAR wheel hydraulic circuit bleeder valve.
