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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 134 (Engine Heating And Cooling - Repair Instructions (2 Of 2)) >> Repair Instructions >> Heater Inlet And Outlet Pipe Replacement (LF4) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM5875797

    Heater Inlet Pipe Seal (3) - Install NEW

  2. Heater Outlet Pipe Gasket (2) - Install NEW
  3. Heater Inlet and Outlet Pipe (1) - Install
  4. GM5875779
    CAUTION:

    Refer to Fastener Caution .

    Heater Inlet and Outlet Pipe Bolt (1) - Install and tighten [2x] - Fastener Specifications

  5. GM5875775

    Heater Outlet Hose (4) @ Heater Inlet and Outlet Pipe - Install

  6. Heater Outlet Hose Clamp (3) @ Heater Inlet and Outlet Pipe - Engage - Hose Clamp Replacement Guidelines - Spring Type
  7. Heater Inlet Hose (2) @ Heater Inlet and Outlet Pipe - Install
  8. Heater Inlet Hose Clamp (1) @ Heater Inlet and Outlet Pipe - Engage - Hose Clamp Replacement Guidelines - Spring Type
  9. GM5875573

    Radiator Outlet Pipe Seal (2) - Install NEW

  10. Radiator Outlet Pipe (1) - Install
  11. GM5875557

    Radiator Outlet Pipe Bolt (2) - Install and tighten - Fastener Specifications

  12. Radiator Outlet Pipe Bolt (1) - Install and tighten - Fastener Specifications
  13. GM5875536

    Wiring Harness Retainer (1) - Install [2x]

  14. GM5875715

    Heater Outlet Hose (4) @ Auxiliary Heater Inlet Hose Tee - Install

  15. Heater Outlet Hose Clamp (3) @ Auxiliary Heater Inlet Hose Tee - Engage - Hose Clamp Replacement Guidelines - Spring Type
  16. Heater Inlet Hose (2) @ Heater Core - Install
  17. Heater Inlet Hose Retainer (1) - Engage
  18. GM5875514

    Radiator Outlet Pipe Bolt (1) - Install and tighten - Fastener Specifications

  19. GM5875503

    Radiator Outlet Hose (2) @ Radiator Outlet Pipe - Install

  20. Radiator Outlet Hose Clamp (1) @ Radiator Outlet Pipe - Engage - Hose Clamp Replacement Guidelines - Spring Type
  21. GM5860355

    Air Cleaner Outlet Duct (1) @ Turbocharger Air Inlet Adapter - Install

  22. GM5860354

    Retainer Spring (4) - Engage

  23. Air Cleaner Outlet Duct Clamp (3) - Tighten - Fastener Specifications
  24. Charge Air Bypass Valve Hose (2) - Install
  25. Charge Air Bypass Valve Hose Clamp (1) - Tighten - Fastener Specifications
  26. GM5854948

    Install the NEW positive crank ventilation foul air tube (2) and secure the 2 positive crankcase ventilation tube connectors (1).

  27. GM5854972

    Turbocharger Wastegate Actuator Vacuum Source Tube (2) - Install

  28. Turbocharger Wastegate Actuator Vacuum Source Tube (2) - Connect - Plastic Collar Quick Connect Fitting Service
  29. Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  30. GM5845622

    Charge Air Bypass Valve Vacuum Tank Tube (2) - Install

  31. Charge Air Bypass Valve Vacuum Tank Tube (2) - Connect - Plastic Collar Quick Connect Fitting Service
  32. Clamp (1) - Engage [2x] - Hose Clamp Replacement Guidelines - Spring Type
  33. GM5862960

    Air Cleaner Assembly (2) - Install

  34. Air Cleaner Bolt (1) - Install and tighten - Fastener Specifications
  35. Install all retainers and wiring harnesses to the air cleaner assembly as necessary.
  36. Connect the 2 mass airflow sensor electrical connectors.
  37. GM5864667

    Auxiliary Air Cleaner Outlet Duct (4) - Install

  38. Air Cleaner Outlet Duct Clamp (3) - Tighten - Fastener Specifications
  39. Air Cleaner Outlet Duct (2) - Install
  40. Air Cleaner Outlet Duct Clamp (1) - Tighten - Fastener Specifications
  41. GM5839407

    Front End Sheet Metal Cross Brace- Left Side and Right Side (3) - Install [2x]

  42. Front Suspension Strut Upper Mounting Nut- Left Side and Right Side (2) - Install and tighten [4x] - Fastener Specifications
  43. Front End Sheet Metal Cross Brace Bolt- Left Side and Right Side (1) - Install and tighten [6x] - Fastener Specifications
  44. Install all wiring harness retainers to the front end sheet metal cross braces.
  45. GM5864524

    Radiator Air Upper Baffle- Upper (3) - Install

  46. Radiator Air Upper Baffle Bolt (2) - Install and tighten [2x] - Fastener Specifications
  47. Radiator Air Upper Baffle Retainer (1) - Install [5x]
  48. GM5839233

    Transmission Control Module (1) @ Engine Control Module Bracket (2) - Install

  49. Engine Control Module Bracket (2) - Install
  50. GM5839232

    Engine Control Module Bracket Bolt (1) - Install and tighten [3x] - Fastener Specifications

  51. GM5839234

    Engine Control Module (1) - Install

  52. Connect the electrical connectors.
  53. GM5861123

    Radiator Surge Tank Outlet Pipe (3) - Install

  54. Radiator Surge Tank Inlet Hose Clamp (4) @ Engine Radiator - Engage - Hose Clamp Replacement Guidelines - Spring Type
  55. Radiator Surge Tank Inlet Hose Clip (2) @ Engine Control Module Bracket - Install
  56. Radiator Surge Tank Inlet Hose Clamp (1) @ Radiator Surge Tank Inlet Hose - Engage - Hose Clamp Replacement Guidelines - Spring Type
  57. GM5839283

    Oil Filler Cap - Remove

  58. Intake Manifold Cover (2) - Install
  59. Intake Manifold Cover Bolt (1) - Install and tighten - Fastener Specifications
  60. Oil Filler Cap - Install
  61. GM5865881

    Plenum Front Panel (1) - Install

  62. GM5865879
    CAUTION:

    Refer to Fastener Caution .

    Plenum Front Panel Bolt (1) - Install and tighten [4x] - Fastener Specifications

  63. Plenum Front Panel Nut (2) - Install and tighten [3x] - Fastener Specifications
  64. GM5422039

    Plenum Front Panel Nut (1) - Install and tighten [3x] - Fastener Specifications

  65. Plenum Front Panel Bolt (2) - Install and tighten [3x] - Fastener Specifications
  66. Install the forward lamp wiring harness extension (3) into the plenum front panel.
  67. Connect the electrical connector.
  68. GM5499583

    Air Inlet Deflector Water Deflector (1) - Install

  69. GM5499581

    Air Inlet Deflector Water Deflector Retainer (1) - Install [2x]

  70. GM5420344

    Install the windshield wiper system module (2) in the vehicle.

  71. Windshield Wiper System Module Bolt (1) - Install and tighten [2x] - Fastener Specifications
  72. Connect the windshield wiper motor electrical connector.
  73. GM5420286

    Windshield Wiper System Module Shield (1) - Install

  74. GM5417442

    Air Inlet Grille Panel (2) - Install

  75. Install the air inlet grille panel (2) between both hood hinges.
  76. Connect the windshield washer nozzle hose to the windshield washer pump hose.
  77. Air Inlet Grille Panel Retainer (1) - Install [6x]
  78. GM5862927

    Front Compartment Side Sight Shield (2) - Install

  79. Front Compartment Side Sight Shield Retainer (1) - Install [3x]
  80. GM5865291

    Air Inlet Grille Panel Extension (2) - Install

  81. Air Inlet Grille Panel Retainer (1) - Install [2x]
  82. GM5421986

    Install the hood rear outer air inlet seal (2) to the left and right side.

  83. Install the 2 hood rear outer air inlet seal retainer (1) to the left and right side.
  84. GM5417116

    Air Inlet Grille Panel Extension (1) - Install [2x]

  85. Install the air inlet grille panel extension (1).
  86. Remove the masking tape from the top edge of the service part.
  87. Using a 50/50 mixture of isopropyl alcohol and clean drinkable water with a clean towel, remove any left over adhesive residue from the masking tape.
  88. GM5325063

    Windshield Wiper Arm (3) - Install [2x]

  89. Clean the windshield wiper transmission pivot shaft splines with a soft wire brush before installing the windshield wiper arm (3).
  90. Position the windshield wiper arm (3) on the windshield wiper transmission pivot shaft.
  91. Windshield Wiper Arm Nut (2) - Install and tighten - Fastener Specifications
  92. Windshield Wiper Arm Finish Cap (1) - Install
  93. GM5416557

    If required, realign the windshield wipers to their respective alignment circles (1) on the windshield.

  94. Lubricate the windshield with clean washer fluid.
  95. Run the windshield wipers for two complete cycles then turn off the windshield wipers.
  96. Ensure the windshield wipers are in the full park position.
  97. Inspect the windshield wipers for proper position to the alignment circles (1) on the windshield.
  98. Fill the cooling system to the proper level. Refer to Cooling System Draining and Filling (LF4 Static Fill) , or Cooling System Draining and Filling (LF4 GE 47716)
  99. Connect the negative battery cable. Battery Negative Cable Disconnection and Connection
  100. Start the engine and check for coolant leaks.
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