Silverado 1500 4WD V8-6.0L (2010)
install a proper box-end wrench onto the LEFT FRONT wheel hydraulic circuit bleeder valve.
20. Install a transparent hose over the end of the bleeder valve, then repeat steps 13-14.
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 J-29532 - Diaphragm Pressure Bleeder, or equivalent , fluid tank valve, then disconnect the J-29532 - Diaphragm Pressure Bleeder,
or equivalent , from the J-35589-A - Brake Pressure Bleeder Adapter.
23. Remove the J-35589-A - Brake Pressure Bleeder Adapter from the brake master cylinder reservoir.
24. 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.
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:
1. Inspect the brake system for external leaks. Refer to Brake System External Leak Inspection (See: Hydraulic System/Testing and
Inspection/Component Tests and General Diagnostics/Brake System External Leak Inspection).
2. Using a scan tool, perform the antilock brake system automated bleeding procedure to remove any air that may have been trapped in the brake
pressure modulator valve (BPMV). Refer to the following procedures, as appropriate:
*
Antilock Brake System Automated Bleed (See: )for Two-mode Hybrid vehicles
*
Antilock Brake System Automated Bleed (See: )for non-hybrid vehicles less than 3900 kg (8600 lb) GVW
*
Antilock Brake System Automated Bleed (See: )for non-hybrid vehicles greater than/equal to 3900 kg (8600 lb) GVW
27. Turn the ignition key ON, with the engine OFF. Check to see if the brake system warning lamp remains illuminated.
Note: 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 (See: Hydraulic System/Testing and
Inspection/Symptom Related Diagnostic Procedures/Symptoms - Hydraulic Brakes).
