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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 36 (Disc Brakes & Drum Brakes) >> Description & Operation >> Brake Assist System >> Description

Brake Assist System: Description

WARNING: This page is about a different car, the 2003 Buick Regal, 2003 Buick Century, 2002 Buick Regal, and 2002 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

The brake assist system consists of the following:

  1. Brake Pedal  - Receives, multiplies and transfers brake system input force from driver.
  2. Brake Pedal Pushrod  - Transfers multiplied input force received from brake pedal to brake booster.
  3. Vacuum Brake Booster  - Uses source vacuum to decrease effort required by driver when applying brake system input force. When brake system input force is applied, air at atmospheric pressure is admitted to the rear of both vacuum diaphragms, providing a decrease in brake pedal effort required. When input force is removed, vacuum replaces atmospheric pressure within the booster.
  4. Vacuum Source  - Supplies force used by vacuum brake booster to decrease brake pedal effort.
  5. Vacuum Source Delivery System  - Enables delivery and retention of source vacuum for vacuum brake booster.

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