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steering pump (8). BRAKE ASSIST SYSTEM DESCRIPTION AND OPERATION (VACUUM ASSIST) 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. Vacuum Brake Booster Uses source vacuum to decrease effort required by driver when applying brake system input Vacuum Source Supplies force used by vacuum brake booster to decrease brake pedal effort. Vacuum Source Delivery System Enables delivery and retention of source vacuum for vacuum brake booster. System Operation Brake system input force is multiplied by the brake pedal and transferred by the pedal pushrod to Active Brake Booster Incorporated into the vacuum brake booster, is an electric solenoid actuator. This actuator can be
2008 Chevrolet Silverado 1500 2008 BRAKES Hydraulic Brakes - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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