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Home >> GMC >> 2002 >> Envoy 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 484 (Disc Brakes & Drum Brakes) >> Symptom Testing >> Brake Pulsation

Brake Pulsation

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Were you sent here from DIAGNOSTIC STARTING POINT - HYDRAULIC BRAKE? If so, go to next step. If not, see DIAGNOSTIC STARTING POINT - HYDRAULIC BRAKE  under TROUBLE SHOOTING.
  2. Inspect the suspension system for proper operation. Did you find and correct a condition? If so, go to step  6 . If not, go to next step.
  3. Inspect the anti-lock brake system for proper operation. Did you find and correct a condition? If so, go to step  6 . If not, go to next step.
  4. 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.
  5. Inspect the hydraulic brake system for proper operation. See HYDRAULIC BRAKE SYSTEM TESTING  under SYSTEM TESTING. Did you find and correct a condition? If so, go to next step. If not, see DIAGNOSTIC STARTING POINT - HYDRAULIC BRAKE  under TROUBLE SHOOTING.
  6. Road test the vehicle in order to confirm proper operation. See BRAKE SYSTEM VEHICLE ROAD TEST  under TROUBLE SHOOTING. Is the condition still present? If so, go to step  2 . If not, system is okay.