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Brake Fluid Loss

  1. Were you sent here from the Hydraulic Brake Symptom table? If so, go to next step. If not, see DIAGNOSTIC STARTING POINT - HYDRAULIC BRAKES  under TROUBLE SHOOTING.
  2. Inspect the hydraulic brake system for proper operation. See HYDRAULIC BRAKES SYSTEM TESTING  under SYSTEM TESTING. Did you find and correct a condition? If so, go to step  6 . If not, go to next step.
  3. Inspect the disc brake system for proper operation. See DISC BRAKE SYSTEM TESTING  under SYSTEM TESTING. Did you find and correct a condition? If so, go to step  6 . If not, go to next step.
  4. Separate the master cylinder from the power brake booster. Do not disconnect any brake pipes. See MASTER CYLINDER  under REMOVAL & INSTALLATION. Inspect the rear of the master cylinder for a brake fluid leak. Inspect for brake fluid in the power brake booster. Did you find a brake fluid leak? If so, go to next step. If not, go to DIAGNOSTIC STARTING POINT - HYDRAULIC BRAKES  .
  5. Replace the brake master cylinder and the power brake booster. See MASTER CYLINDER  and POWER BRAKE BOOSTER  under REMOVAL & INSTALLATION. After repairs are complete, go to next step.
  6. Install or connect components that were removed or disconnected during diagnosis. Road test the vehicle to confirm proper operation. See BRAKE SYSTEM VEHICLE ROAD TEST  . Is the condition still present? If so, go to step  2 . If not, system is okay.
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