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Home >> GMC >> 1993 >> C3500 HD 5.7 K, Automatic >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc & Drum Brake System >> Removal & Installation >> Power Brake Booster >> Removal & Installation

Removal & Installation

  1. Remove master cylinder. See MASTER CYLINDER under REMOVAL & INSTALLATION . Ensure no brake fluid contacts ABS control unit (if equipped) or related electrical connectors and wiring.
  2. Disconnect vacuum hose from booster. Disconnect booster push rod from brake pedal. Remove booster mounting nuts from inside vehicle. Remove booster and gasket.
  3. To install, reverse removal procedure. Bleed brake system if lines were disconnected from master cylinder. See MANUAL BLEEDING, PRESSURE BLEEDING or VACUUM BLEEDING under BLEEDING BRAKE SYSTEM .
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