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Home >> GMC >> 2002 >> Jimmy 2D Utility, Part Time, Automatic >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc Brakes & Drum Brakes >> Symptom Testing >> Brakes Drag

Brakes Drag

  1. Were you sent here from the Hydraulic Brake Symptom Table? If so, go to next step. If not, go to STARTING POINT - HYDRAULIC BRAKES  under TROUBLESHOOTING.
  2. Is the vehicle equipped with an adjustable stop light switch and/or an adjustable cruise control release switch? If so, go to next step. If not, go to step  4.
  3. Inspect the stop light switch for proper adjustment to ensure that the brake pedal is fully releasing. Inspect the cruise control release switch, if equipped, for proper adjustment to ensure that the brake pedal is fully releasing. If so, repair and go to step  12. If not, go to next step.
  4. Inspect the drum brake system, if equipped, for proper operation. See DRUM BRAKE SYSTEM DIAGNOSIS  under SYSTEM TESTING. Did you find and correct a condition? If so, go to step  12. If not, go to next step.
  5. Inspect the park brake system for proper operation. See PARK BRAKE SYSTEM DIAGNOSIS  under SYSTEM TESTING. Did you find and correct a condition? If so, go to step  12. If not, go to next step.
  6. Inspect the disc brake system for proper operation. See DISC BRAKE SYSTEM DIAGNOSIS  under SYSTEM TESTING. Did you find and correct a condition? If so, go to step  12. If not, go to next step.
  7. Separate the brake booster pushrod from the brake pedal. Inspect the brake corners to determine if the brake drag condition is still present. Do the brake corners still exhibit the brake drag condition? If so, go to step  9. If not, go to next step.
  8. Replace the brake pedal assembly. After repairs are complete go to step  12.
  9. Separate the master cylinder from the brake booster. Do not disconnect any brake pipes. Inspect the brake corners to determine if the brake drag condition is still present. Do the brake corners still exhibit the brake drag condition? If so, go to step  11. If not, go to next step.
  10. Replace the brake booster assembly. After repairs are complete go to step  12.
  11. Inspect the hydraulic brake system for proper operation. See HYDRAULIC BRAKE SYSTEM DIAGNOSIS  under SYSTEM TESTING. Did you find and correct a problem? If so, go to next step. If not, go to STARTING POINT - HYDRAULIC BRAKES  under TROUBLESHOOTING.
  12. Road test the vehicle in order to confirm proper operation. See BRAKE SYSTEM VEHICLE ROAD TEST  under TROUBLESHOOTING. Is the condition still present? If so, go to step  4. If not, system is okay.
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