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14 Repair or replace any brake caliper that was not Front Brake Caliper Overhaul (JH6, Rear Brake Caliper Overhaul (JH6, - 15 Bleed the hydraulic brake system to observe for Go to Step 19 Go to Step 16 16 Was the flow of brake fluid unrestricted and even Go to Step 21 Go to Step 17 1. Inspect the hydraulic brake pipes and flexible brake hoses for signs of a fluid 2. Replace any of the hydraulic brake pipes and/or flexible brake hoses found to be Front Brake Hose Replacement Rear Brake Hose Replacement
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
17 (Frame to Axle - JH6, JH7)Rear Brake Pipe Replacement 3. If none of the hydraulic brake pipes or flexible brake hoses were visibly bent, Did you find and correct a condition? Go to Step 21 Go to Step 18 18 Replace the brake pressure modulator valve Go to Step 21 - 19 1. Inspect the hydraulic brake system components for brake fluid seepage at a seal 2. Inspect the hydraulic brake system components for evidence of a recent repair, 3. Repair or replace any of the components found to be installed incorrectly or seeping Did you find and correct a condition? Go to Step 21 Go to Step 20 1. Inspect the brake master cylinder for
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
BRAKE ASSIST SYSTEM DIAGNOSIS (HYDRAULIC ASSIST) 20 internal fluid leaks. Refer to Brake System 2. Repair or replace the brake master cylinder if it is found to be leaking brake fluid Did you find and correct a condition? Go to Step 21 Return to Symptom Table 21 Install or connect components that were removed Hydraulic Brake System OK Return to Symptom Table - Step Action Yes No DEFINITION: This diagnostic table is designed to diagnose ONLY the components of the 1 Were you sent here from a Brake Symptom Go to Step 2 Go to Diagnostic 2 Is the symptom related to brake system noise? Go to Step 4 Go to Step 3 3 Is the symptom related to the brake system self- Go to Step 11 Go to Step 9 4 Check the hydraulic assist system operation for Go to Step 20 Go to Step 5 1. Check the power steering system fluid level and adjust the level if necessary.
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
5 Steering Fluid (With Hydroboost) or 2. Inspect the power steering pump drive belt for proper tension and excessive 3. Inspect the power steering pressure and return hoses for proper routing, possible 4. Inspect the hydraulic brake booster for leaks. Refer to Power Brake Booster Did you find and correct a condition? Go to Step 20 Go to Step 6 6 1. Position the vehicle on the ground with wheels straight ahead. 2. Start the engine and allow it to idle. 3. Apply the brake pedal with moderate force 130-200 N (30-45 lb). Observe for 4. Release the brakes and turn the steering wheel slightly from side to side. Observe 5. Compare the noise levels between brake apply and steering input. Was the abnormal noise heard ONLY during Go to Step 12 Go to Step 7 7 Perform the Power Steering System Test Go to Step 20 Go to Step 8 8 During the noise inspection, did the hydraulic Go to Step 12 Go to Step 20 Inspect for proper brake pedal travel. Refer to
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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