K 1500 Yukon Denali AWD V8-6.0L VIN U (2002)
21. After completing the final wheel hydraulic circuit bleeding procedure, ensure that each of the 4 wheel hydraulic circuit bleeder valves are properly
tightened.
22. Close the J29532, or equivalent, fluid tank valve, then disconnect the J29532, or equivalent, from the J35589-A.
23. Remove the J35589-A from the brake master cylinder reservoir.
24. Fill the brake master cylinder reservoir to the maximum-fill level with Delco Supreme II, GM P/N 12377967 (Canadian P/N 992667), or
equivalent DOT-3 brake fluid from a clean, sealed brake fluid container.
25. Slowly depress and release the brake pedal. Observe the feel of the brake pedal.
26. If the brake pedal feels spongy perform the following steps:
26.1.
Inspect the brake system for external leaks.
26.2.
Using a scan tool, perform the antilock brake system automated bleeding procedure to remove any air that may have been trapped in the
BPMV.
27. Turn the ignition key ON, with the engine OFF. Check to see if the brake system warning lamp remains illuminated.
Important: If the brake system warning lamp remains illuminated, DO NOT allow the vehicle to be driven until it is diagnosed and repaired.
28. If the brake system warning lamp remains illuminated, refer to Symptoms - Hydraulic Brakes.
