Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: Hydraulic Brake System Description and Operation

Chevrolet Sonic Repair Manual / Chassis / Brakes / Hydraulic Brakes / Hydraulic Brake System Description and Operation

System Component Description

The hydraulic brake system consists of the following:

Hydraulic Brake Master Cylinder Reservoir

Contains a supply of brake fluid for the hydraulic brake system.

Hydraulic Brake Master Cylinder

Converts mechanical input force into hydraulic output pressure.

Hydraulic output pressure is distributed from the master cylinder through two hydraulic circuits, supplying diagonally-opposed wheel apply circuits.

Hydraulic Brake Pressure Balance Control System

Regulates brake fluid pressure delivered to hydraulic brake wheel circuits, in order to control the distribution of braking force. Pressure balance control on non-ABS equipped vehicles, is achieved through a proportioning valve assembly. Pressure balance control on ABS equipped vehicles, is achieved through electronic brake distribution (EBD), which is a function of the ABS modulator.

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.

System Operation

Mechanical force is converted into hydraulic pressure by the master cylinder, regulated to meet braking system demands by the pressure balance control system, and delivered to the hydraulic brake wheel circuits by the pipes and flexible hoses. The wheel apply components then convert the hydraulic pressure back into mechanical force which presses brake linings against rotating brake system components.

Hydraulic Brake System Bleeding (Pressure)
Special Tools CH-29532 Diaphragm Type Brake Pressure Bleeder CH-35589-A Brake Pressure Bleeder Adapter Warning: Refer to Brake Fluid Irritant Warning. Caution: Refer to Brake Fluid ...

Hydraulic Brake System Flushing
Warning: Refer to Brake Fluid Irritant Warning. Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution. Inspect the brake fluid for the following conditio ...

Other materials:

Rear Seats
Folding the Seatback Either side of the seatback can be folded down for more cargo space. Fold a seatback only when the vehicle is not moving. Caution Folding a rear seat with the safety belts still fastened may cause damage to the seat or the safety belts. Always unbuckle the safety belts an ...

Steering Wheel Horn Contact Replacement
Steering Wheel Horn Contact Replacement Callout Component Name Preliminary Procedure Remove the steering wheel inflatable restraint module. Refer to Airbag Steering Wheel Module Replacement. 1 S ...

Manual Shift Detent Lever with Shaft Position Switch Assembly Replacement
Special Tools DT-41229 Manual Shaft Pin Installer DT-48550 Detent Lever Pin Remover For equivalent regional tools, refer to Special Tools. Removal Procedure Disconnect the transmission range selector lever cable terminal (1) from the transmission manual shi ...

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