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Bleeding Brake System

  1. Clean dirt from master cylinder fluid reservoir filler cap area. If master cylinder is known or suspected to have air in bore, bleed master cylinder first. To bleed brake system, release vacuum from power brake booster unit by depressing brake pedal several times.
  2. Install clear vinyl bleeder hose onto furthest bleeder valve from master cylinder. Place other end of hose in clean transparent container. Partially fill container with clean brake fluid so end of hose is submerged in fluid. Open bleeder valve 1-2 turns. Have an assistant slowly depress brake pedal through its full travel.
  3. Close bleeder valve and release pedal. Pump pedal several times to push air toward wheel cylinders. Repeat procedure until flow of brake fluid is clear and shown no sign or air bubbles. Proceed to next bleeder valve. Check brake pedal for firmness. If brake pedal feels "spongy", repeat bleeding procedure. Top off brake fluid reservoir.
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