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Fig. 49: View Of Accumulator With C-Clamp 7. Release the C-clamp. 8. Remove the nut from the stud. 9. Remove the J 26889 . See Special Tools. 10. Install the master cylinder to the hydraulic booster. Refer to Master Cylinder Replacement (JD9, JF3, JF7) or Master Cylinder Replacement (JH6, JH7). 11. Release the park brake and unblock the wheels. DESCRIPTION AND OPERATION BRAKE WARNING SYSTEM DESCRIPTION AND OPERATION Brake Warning Indicator The instrument panel cluster (IPC) illuminates the Red Brake Warning indicator when one or The body control module (BCM) detects that the park brake is engaged.
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
The IPC detects a low brake fluid condition. The IPC receives a low brake fluid signal from The electronic brake control module (EBCM) detects an ABS malfunction which disables The IPC performs the bulb check at the start of each ignition cycle. The Red Brake Warning The IPC detects a loss of GMLAN communications with the EBCM. HYDRAULIC BRAKE SYSTEM DESCRIPTION AND OPERATION System Component Description The hydraulic brake system consists of the following: Hydraulic Brake Master Cylinder Fluid Reservoir Contains supply of brake fluid for the hydraulic brake system. Hydraulic Brake Master Cylinder Converts mechanical input force into hydraulic output pressure. Hydraulic Brake Pressure Balance Control System Regulates brake fluid pressure delivered to hydraulic brake wheel circuits, in order to Hydraulic Brake Pipes and Flexible Brake Hoses Carries brake fluid to and from hydraulic brake system components. Hydraulic Brake Wheel Apply Components Converts hydraulic input pressure into mechanical output force.
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
System Operation Mechanical force is converted into hydraulic pressure by the master cylinder, regulated to meet BRAKE ASSIST SYSTEM DESCRIPTION AND OPERATION (HYDRAULIC ASSIST) Fig. 50: View of Brake Assist System Callout Component Name 1 Master Cylinder 2 Power Brake Booster Outlet Hose 3 Power Brake Booster Inlet Pipe/Hose 4 Hydraulic Brake Booster 5 Power Steering Gear Inlet Pipe/Hose
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
System Component Description The brake assist system consists of the following: Brake Pedal Receives, multiplies and transfers brake system input force from driver. Brake Pedal Pushrod Transfers multiplied input force received from brake pedal to brake booster. Hydraulic Brake Booster Uses power steering fluid pressure to decrease effort required by driver when applying Power Steering System Supplies pressurized power steering fluid used by hydraulic brake booster to decrease brake System Operation The hydraulic brake boost system uses fluid from the power steering pump (8) through the The steering pump (8) is a continuous flow device supplying approximately 3 GPM at 1000 6 Steering Gear 7 Power Steering Cooler 8 Power Steering Pump
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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