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Home >> Cadillac >> 2021 >> CT4 V, 4WD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Hydraulic Brakes >> Repair Instructions >> Rear Brake Crossover Pipe Replacement >> Installation Procedure

Installation Procedure

  1. GM5525898Courtesy of GENERAL MOTORS COMPANY

    Maneuver the rear brake crossover pipe (3) back into the vehicle.

  2. Secure the rear brake crossover pipe to the 2 retainers (1).
  3. Remove the cap from the rear brake crossover pipe inlet.
  4. Remove the plug from the brake pipe union outlet.
    5. CAUTION:

    Refer to Fastener Caution .

  5. Rear Brake Pipe Nut (2) - Install and tighten - Fastener Specifications 
  6. GM5525900Courtesy of GENERAL MOTORS COMPANY

    Secure the rear brake crossover pipe to the retainer (2).

  7. Remove the cap from the rear brake crossover pipe outlet.
  8. Remove the plug from the rear brake hose inlet.
  9. Rear Brake Pipe Nut (1) - Install and tighten - Fastener Specifications 
  10. GM5403397Courtesy of GENERAL MOTORS COMPANY

    With assistance, remove fuel tank from bench and place on a suitable adjustable jack.

  11. Guide the fuel tank fill hose into the fuel tank fill pipe when raising fuel tank.
  12. Fuel Tank (1) - Install
  13. GM5404295Courtesy of GENERAL MOTORS COMPANY

    Fuel Tank Strap (3) - Install [2x]

  14. Fuel Tank Strap Bolt (2) - Install and tighten [3x] - Fastener Specifications
  15. Fuel Tank Strap Bolt (1) - Install and tighten [2x] - Fastener Specifications
  16. Remove adjustable jack under the fuel tank.
  17. GM5405716Courtesy of GENERAL MOTORS COMPANY

    Evaporative Emission Canister Purge Hose (6) - Connect - Plastic Collar Quick Connect Fitting Service

  18. Fuel Tank Vent Hose (5) - Connect - Plastic Collar Quick Connect Fitting Service
  19. Fuel Tank Filler Evaporative Emission Valve Hose (4) - Connect - Plastic Collar Quick Connect Fitting Service
  20. Fuel Tank Filler Hose - (3) Install
  21. Fuel Tank Filler Hose Clamp (2) - Tighten - Fastener Specifications
  22. Fuel Tank Filler Pipe Ground Bolt (1) Tighten - Fastener Specifications
  23. GM5403393Courtesy of GENERAL MOTORS COMPANY

    Fuel Pump Fuel Feed Hose (2) - Connect - Plastic Collar Quick Connect Fitting Service

  24. Fuel Tank Vent Valve Hose (1) - Connect - Plastic Collar Quick Connect Fitting Service
  25. GM5403392Courtesy of GENERAL MOTORS COMPANY

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

  26. Install the harness retainers as needed.
  27. GM5334765Courtesy of GENERAL MOTORS COMPANY

    Apply a thin layer of grease to the transmission output shaft splines (1). Adhesives, Fluids, Lubricants, and Sealers

  28. Loosely install a NEW propeller shaft hub clamp (3) to the propeller shaft joint boot.
  29. Support and secure the propeller shaft (2) to a suitable hydraulic jack stand.
  30. Propeller Shaft (2) - Install
  31. GM5317838Courtesy of GENERAL MOTORS COMPANY

    Prepare the 2 propeller shaft bearing support bolts (1) for installation as follows:

    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  32. Propeller Shaft Bearing Support Bolt (1) - Install and tighten [2x] - Fastener Specifications
  33. Remove the hydraulic jack stand supporting the propeller shaft.
  34. GM5317835Courtesy of GENERAL MOTORS COMPANY

    Prepare the 3 rear propeller shaft bolts (1) and nuts (3) for installation as follows:

    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  35. Align the relationship marks (2) made on the propeller shaft and the rear differential flange.
  36. Rear Propeller Shaft Bolt (1) - Install [3x]
  37. Rear Propeller Shaft Nut (3) - Loosely install [3x]
  38. Rear Propeller Shaft Bolt (1) - Tighten [3x] - Fastener Specifications
  39. GM5317844Courtesy of GENERAL MOTORS COMPANY
  40. Ensure that the drive shaft boot is completely seated in the output shaft groove prior to crimping the propeller shaft hub clamp (2).
  41. Using the DT-35910  Drive Axle Seal Clamp Pliers (1), crimp the propeller shaft hub clamp (2) until the final crimped outer diameter (a) is 39 - 41 mm (1.54 - 1.61 in).
  42. GM5334717Courtesy of GENERAL MOTORS COMPANY

    Floor Panel Number 2 Cross Bar Reinforcement (2) - Install

  43. Floor Panel Number 2 Cross Bar Reinforcement Bolt (1) - Install and tighten [4x] - Fastener Specifications
  44. GM5309833Courtesy of GENERAL MOTORS COMPANY

    Exhaust Intermediate Underbody Heat Shield (2) - Install

  45. Exhaust Heat Shield Bolt (1) - Install and tighten [2x] - Fastener Specifications
  46. GM5309214Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Gasket (2) - Install NEW

  47. With the aid of an assistant, install the exhaust system to the vehicle (1)
  48. {If equipped} Electrical Connector @ Exhaust Control Valve Actuator - Connect
  49. GM5309211Courtesy of GENERAL MOTORS COMPANY

    Exhaust Muffler (1) @ Exhaust Rear Muffler Insulator-Right Side (3) - Install

  50. Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Right Side (2) - Install
  51. GM5309202Courtesy of GENERAL MOTORS COMPANY

    Exhaust Muffler (1) @ Exhaust Rear Muffler Insulator-Left Side (3) - Install

  52. Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Left Side (2) - Install
  53. GM5309188Courtesy of GENERAL MOTORS COMPANY

    Catalytic Converter Nut (1) - Install and tighten [2x] - Fastener Specifications

  54. GM5400756Courtesy of GENERAL MOTORS COMPANY

    Floor Panel Number 4 Cross Bar Reinforcement (2) - Install

  55. Floor Panel Number 4 Cross Bar Reinforcement Bolt (1) - Install and tighten [6x] - Fastener Specifications
  56. GM5395767Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Rear Wheelhouse Liner- Right Side (5) - Install

  57. Rear Wheelhouse Liner Bolt- Right Side (2) - Install and tighten [8x] - Fastener Specifications
  58. GM5400642Courtesy of GENERAL MOTORS COMPANY

    Underbody Rear Air Deflector- Right Side (5) - Install

  59. Underbody Rear Air Deflector Plastic Nut (3) - Install and tighten [3x] - Fastener Specifications
  60. Underbody Rear Air Deflector Bolt (2) - Install and tighten [3x] - Fastener Specifications
  61. Underbody Rear Air Deflector Nut (4) - Install and tighten [2x] - Fastener Specifications
  62. Rear Wheelhouse Liner Screw (1) - Install and tighten - Fastener Specifications
  63. GM5424018Courtesy of GENERAL MOTORS COMPANY

    Rear Tire Front Air Deflector- Right Side (2) - Install

  64. Rear Tire Front Air Deflector Bolt (1) - Install and tighten [2x] - Fastener Specifications
  65. GM5400553Courtesy of GENERAL MOTORS COMPANY

    Underbody Rear Air Deflector- Left Side (5) - Install

  66. Underbody Rear Air Deflector Plastic Nut (2) - Install and tighten [3x] - Fastener Specifications
  67. Underbody Rear Air Deflector Bolt (3) - Install and tighten [3x] - Fastener Specifications
  68. Underbody Rear Air Deflector Nut (4) - Install and tighten [2x] - Fastener Specifications
  69. Rear Wheelhouse Liner Screw (1) - Install and tighten - Fastener Specifications
  70. GM5424015Courtesy of GENERAL MOTORS COMPANY

    Rear Tire Front Air Deflector- Left Side (2) - Install

  71. Rear Tire Front Air Deflector Bolt (1) - Install and tighten [2x] - Fastener Specifications
  72. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection
  73. Bleed the brake system. Hydraulic Brake System Bleeding (JE5) , or Hydraulic Brake System Bleeding (J55) 
  74. Remove the drain pan.
  75. Check for brake system leaks.
  76. Install the rear tire and wheel assembly. Tire and Wheel Removal and Installation
  77. Refill the fuel tank.
  78. Inspect for fuel leaks.
  79. Inspect the exhaust system for leaks.
  80. Remove the support and lower the vehicle.
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