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BRAKE PEDAL EXCESSIVE TRAVEL 4 connections Excessively worn or damaged 2. Adjust, repair or replace components as necessary. Refer to Diagnostic Starting Did you find and correct a condition? Go to Step 6 Go to Step 5 5 1. Inspect the brake assist system for the following conditions: Binding, bent or damaged pedal Damaged or improperly operating Damaged or improperly operating 2. Adjust, repair or replace components as necessary. Refer to Brake Assist System Did you find and correct a condition? Go to Step 6 Go to Diagnostic 6 1. Install or connect components that were removed or disconnected during diagnosis. 2. Road test the vehicle in order to confirm proper operation. Refer to Brake System Is the condition still present? Go to Step 2 System OK Step Action Yes No DEFINITION: Brake pedal travels further than expected to obtain firm pedal and/or firm 1 Were you sent here from the Hydraulic Brake Go to Diagnostic
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Go to Step 2 Brakes 2 Inspect the travel and feel of brake pedal 1. Apply the brake pedal several times to fully deplete the power reserve. 2. With power reserve depleted, apply the brake pedal with light, steady pressure and 3. Apply the brake pedal with light, steady pressure, then without pumping the pedal, 4. Apply the brake pedal slowly, then release and apply the pedal quickly. Observe pedal Go to Step 3 - 1. Inspect the hydraulic brake system for the conditions listed, based on the following Pedal feel was spongy Air in hydraulic system External brake fluid leaks Soft, weak or damaged Pedal fell away and/or traveled to or External brake fluid leaks Poor brake fluid quality; low
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
3 Internal brake fluid leaks; Pedal was somewhat firm then Internal brake fluid leaks; Poor brake fluid quality; low Pedal returned to rest slowly after any Internally damaged flexible Binding caliper pistons Internal brake fluid leaks; 2. Repair or replace components as necessary. Refer to Hydraulic Brake System 3. Re-inspect brake pedal apply travel and feel. Did you find and correct a condition? Go to Step 8 Go to Step 4 1. Inspect the disc brake system for the following conditions: Cracked, excessively worn or Cracked, excessively worn or Improperly operating, binding or
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
4 damaged caliper hardware and/or Loose or missing caliper hardware Excessive assembled lateral runout Bent or damaged caliper or mounting 2. Adjust, repair or replace components as necessary. Refer to Disc Brake System 3. Re-inspect brake pedal apply travel and feel. Did you find and correct a condition? Go to Step 8 Go to Step 5 5 Inspect for proper brake pedal travel. Refer to Go to Step 7 Go to Step 6 6 1. Inspect for worn, missing, misaligned, bent or damaged brake pedal system For the brake pedal pushrod Inspect the brake pedal bushings for 2. Replace the brake pedal system components that are worn, missing, Did you find and replace any worn, missing,
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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