LEMON Manuals: Even more car manuals for everyone
Home >> Cadillac >> 2021 >> CT4 V, RWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Repair Instructions >> Rear Brake Crossover Pipe Replacement >> Removal Procedure

Removal Procedure

  1. Relieve the fuel system pressure. Fuel Pressure Relief
  2. Drain the fuel tank. Fuel Tank Draining
  3. Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection
  4. Raise and support the vehicle. Lifting and Jacking the Vehicle
  5. Remove the rear tire and wheel assembly. Tire and Wheel Removal and Installation
  6. GM5424015Courtesy of GENERAL MOTORS COMPANY

    Rear Tire Front Air Deflector Bolt (1) - Remove [2x]

  7. Rear Tire Front Air Deflector- Left Side (2) - Remove
  8. GM5400553Courtesy of GENERAL MOTORS COMPANY

    Rear Wheelhouse Liner Screw (1) - Remove

  9. Underbody Rear Air Deflector Plastic Nut (2) - Remove [3x]
  10. Underbody Rear Air Deflector Bolt (3) - Remove [3x]
  11. Underbody Rear Air Deflector Nut (4) - Remove [2x]
  12. Underbody Rear Air Deflector- Left Side (5) - Remove
  13. GM5424018Courtesy of GENERAL MOTORS COMPANY

    Rear Tire Front Air Deflector Bolt (1) - Remove [2x]

  14. Rear Tire Front Air Deflector- Right Side (2) - Remove
  15. GM5400642Courtesy of GENERAL MOTORS COMPANY

    Rear Wheelhouse Liner Screw (1) - Remove

  16. Underbody Rear Air Deflector Bolt (2) - Remove [3x]
  17. Underbody Rear Air Deflector Plastic Nut (3) - Remove [3x]
  18. Underbody Rear Air Deflector Nut (4) - Remove [2x]
  19. Underbody Rear Air Deflector- Right Side (5) - Remove
  20. GM5395767Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Rear Wheelhouse Liner Bolt- Right Side (2) - Remove

  21. Rear Wheelhouse Liner- Right Side (5) - Position aside
  22. GM5400756Courtesy of GENERAL MOTORS COMPANY

    Floor Panel Number 4 Cross Bar Reinforcement Bolt (1) - Remove [6x]

  23. Floor Panel Number 4 Cross Bar Reinforcement (2) - Remove
  24. GM5309188Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Nut (1) - Remove [2x]

  25. GM5309202Courtesy of GENERAL MOTORS COMPANY

    Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Left Side (2) - Separate

  26. Exhaust Muffler (1) @ Exhaust Rear Muffler Insulator-Left Side (3) - Separate
  27. GM5309211Courtesy of GENERAL MOTORS COMPANY

    Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Right Side (2) - Separate

  28. Exhaust Muffler (1) @ Exhaust Rear Muffler Insulator-Right Side (3) - Separate
  29. {If equipped} Electrical Connector @ Exhaust Control Valve Actuator - Disconnect
  30. GM5309214Courtesy of GENERAL MOTORS COMPANY

    With the aid of an assistant, lower the exhaust system from the vehicle (1)

  31. Catalytic Converter Gasket (2) - Remove and DISCARD
  32. GM5309833Courtesy of GENERAL MOTORS COMPANY

    Exhaust Heat Shield Bolt (1) - Remove [2x]

  33. Exhaust Intermediate Underbody Heat Shield (2) - Remove
  34. GM5334717Courtesy of GENERAL MOTORS COMPANY

    Floor Panel Number 2 Cross Bar Reinforcement Bolt (1) - Remove [4x]

  35. Floor Panel Number 2 Cross Bar Reinforcement (2) - Remove
  36. GM5507958Courtesy of GENERAL MOTORS COMPANY

    Propeller Shaft Hub Clamp (1) - Remove and DISCARD

  37. GM5317835Courtesy of GENERAL MOTORS COMPANY

    Mark (2) the relationship of the propeller shaft to the rear differential flange using a paint pen.

  38. CAUTION:

    When removing the propeller shaft, do not remove the propeller shaft coupler from the propeller shaft assembly. The only bolts that should be removed are those that mount each coupler to the transmission output flange, and to the rear drive axle input flange. Failure to properly remove the propeller shaft assembly may cause coupler damage, resulting in necessary replacement of the entire propeller shaft.

  39. Rear Propeller Shaft Nut (3) - Remove [3x]
  40. Rear Propeller Shaft Bolt (1) - Remove [3x]
  41. Support and secure the propeller shaft to a suitable hydraulic jack stand.
  42. GM5317838Courtesy of GENERAL MOTORS COMPANY

    Propeller Shaft Bearing Support Bolt (1) - Remove [2x]

  43. GM5317841Courtesy of GENERAL MOTORS COMPANY

    Propeller Shaft (1) - Remove

  44. GM5312860Courtesy of GENERAL MOTORS COMPANY

    Fuel Tank Shield Retainer (1) - Remove [5x]

  45. Fuel Tank Shield (2) - Remove
  46. GM5403392Courtesy of GENERAL MOTORS COMPANY

    Wiring Harness Connector (1) - Disconnect [2x]

  47. Remove the harness retainers as needed.
  48. GM5403393Courtesy of GENERAL MOTORS COMPANY

    Fuel Tank Vent Valve Hose (1) - Disconnect - Plastic Collar Quick Connect Fitting Service

  49. Fuel Pump Fuel Feed Hose (2) - Disconnect - Plastic Collar Quick Connect Fitting Service
  50. GM5405716Courtesy of GENERAL MOTORS COMPANY

    Fuel Tank Filler Pipe Ground Bolt (1) Remove

  51. Fuel Tank Filler Hose Clamp (2) - Loosen
  52. Break seal of fuel tank filler hose (3) at fuel tank filler pipe.
  53. Fuel Tank Filler Evaporative Emission Valve Hose (4) - Disconnect - Plastic Collar Quick Connect Fitting Service
  54. Fuel Tank Vent Hose (5) - Disconnect - Plastic Collar Quick Connect Fitting Service
  55. Evaporative Emission Canister Purge Hose (6) - Disconnect - Plastic Collar Quick Connect Fitting Service
  56. GM5403395Courtesy of GENERAL MOTORS COMPANY

    Place a suitable adjustable jack under the fuel tank.

  57. Fuel Tank Strap Bolt (1) - Remove [5x]
  58. Fuel Tank Strap (2) - Remove [2x]
  59. GM5403397Courtesy of GENERAL MOTORS COMPANY

    Fuel Tank (1) - Remove

  60. With assistance, move fuel tank to bench.
  61. GM5525900Courtesy of GENERAL MOTORS COMPANY

    Rear Brake Pipe Nut (1) - Remove

  62. Plug the rear brake hose inlet to prevent brake fluid loss and contamination.
  63. Cap the rear brake crossover pipe outlet to prevent brake fluid loss and contamination.
  64. Remove the rear brake crossover pipe from the retainer (2).
  65. GM5525898Courtesy of GENERAL MOTORS COMPANY

    Rear Brake Pipe Nut (2) - Remove

  66. Plug the brake pipe union outlet to prevent brake fluid loss and contamination.
  67. Cap the rear brake crossover pipe inlet to prevent brake fluid loss and contamination.
  68. Remove the rear brake crossover pipe from the 2 retainers (1).
  69. Maneuver the rear brake crossover pipe (3) out of the vehicle.