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Home >> GMC >> 2021 >> Yukon XL AT4 >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Repair Instructions >> Front and Rear Brake Pipe Replacement >> Removal Procedure

Removal Procedure

  1. Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection (KL9)
  2. Raise and support the vehicle. Lifting and Jacking the Vehicle
  3. Remove the left front tire and wheel assembly. Tire and Wheel Removal and Installation (Aluminum Wheel)
  4. Front Wheelhouse Liner - Left Side - Remove Front Wheelhouse Liner Replacement
  5. GM5570480Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) @ Brake System Control Module - Disconnect

  6. GM5549253Courtesy of GENERAL MOTORS COMPANY

    Front and Rear Brake Pipe Nut (1) @ Brake Master Cylinder - Remove [ 4x ]

  7. Front and Rear Brake Pipe (2) @ Brake Master Cylinder - Remove
  8. Plug the brake master cylinder outlets to avoid fluid loss and contamination.
  9. GM5568605Courtesy of GENERAL MOTORS COMPANY

    Front and Rear Brake Pipe Nut (1) - Remove [ 4x ]

  10. Plug the front crossover brake pipe connector and rear brake pipe connector inlets to avoid fluid loss and contamination.
  11. GM5568607Courtesy of GENERAL MOTORS COMPANY

    Front and Rear Brake Pipe (1) - Remove