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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 , or equivalent, fluid tank valve, then disconnect the J 29532 , or equivalent, from the J 35589-A . See Special Tools. 23. Remove the J 35589-A from the brake master cylinder reservoir. See Special Tools. 24. Fill the brake master cylinder reservoir to the maximum-fill level with Delco Supreme 11®, GM P/N 12377967 (Canadian P/N 992667), or equivalent DOT-3 brake fluid from a clean, 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 . 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 27. Turn the ignition key ON, with the engine OFF. Check to see if the brake system warning lamp remains illuminated. 28. If the brake system warning lamp remains illuminated, refer to Symptoms - Hydraulic Brakes. HYDRAULIC BRAKE SYSTEM BLEEDING (MANUAL) IMPORTANT: If the brake system warning lamp remains illuminated, DO NOT allow the vehicle to be driven until it is diagnosed and CAUTION: Refer to Brake Fluid Irritant Caution . NOTE: Refer to Brake Fluid Effects on Paint and Electrical Components NOTE: When adding fluid to the brake master cylinder reservoir, use only
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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