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Fig. 14: Bleeding Master Cylinder 1. Secure the mounting flange of the brake master cylinder in a bench vise so that the rear of the primary piston is accessible. 2. Remove the master cylinder reservoir cap and diaphragm. 3. Install suitable fittings to the master cylinder ports that match the type of flare seat required and also provide for hose attachment. 4. Install transparent hoses to the fittings installed to the master cylinder ports, then route the hoses into the master cylinder reservoir. 5. Fill the master cylinder reservoir to at least the half-way point with Delco Supreme 11®, GM P/N 12377967 (Canadian P/N 992667), or equivalent DOT-3 brake fluid from a clean,
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
6. Ensure that the ends of the transparent hoses running into the master cylinder reservoir are fully submerged in the brake fluid. 7. Using a smooth, round-ended tool, depress and release the primary piston as far as it will travel, a depth of about 25 mm (1 in), several times. Observe the flow of fluid coming from As air is bled from the primary and secondary pistons, the effort required to depress the 8. Continue to depress and release the primary piston until fluid flows freely from the ports with no evidence of air bubbles. 9. Remove the transparent hoses from the master cylinder reservoir. 10. Install the master cylinder reservoir cap and diaphragm. 11. Remove the fittings with the transparent hoses from the master cylinder ports. Wrap the master cylinder with a clean shop cloth to prevent brake fluid spills. 12. Remove the master cylinder from the vise. BRAKE FLUID LEVEL INDICATOR SWITCH REPLACEMENT (JD9, JF3, JF7) Fig. 15: Brake Fluid Level Indicator Switch Replacement (JD9, JF3, JF7)
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Courtesy of GENERAL MOTORS CORP. BRAKE PEDAL ASSEMBLY REPLACEMENT Fig. 16: Brake Pedal Assembly Replacement Callout Component Name Preliminary Procedure: 1 Master Cylinder Fluid Level Sensor Callout Component Name Preliminary Procedure: 1 Brake Booster Pushrod Retainer Bolt NOTE: Refer to Fastener Notice .
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
BRAKE PIPE REPLACEMENT Tools Required J 45405 Pipe Flaring Tool Kit. See Special Tools. Replacement Tighten: 10 N.m (89 lb in) 2 Brake Booster Pushrod Retainer 3 Stoplamp Switch 4 Brake Booster Pushrod 5 Brake Pedal Pivot Nut Tighten: 35 N.m (26 lb ft) 6 Brake Pedal Pivot Bolt 7 Brake Pedal Procedure 1. If installing a new brake pedal pivot bushing, ensure the conical flange end of the bushing is on the inboard side of the pedal. 2. For reassembly, apply high temperature grease GM P/N 12345994 (Canadian P/N 10953501) to the ID of the brake pedal pivot bushing. CAUTION: Refer to Brake Fluid Irritant Caution . CAUTION: Always use double walled steel brake pipe when replacing brake pipes. The use of any other pipe is not recommended
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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