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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 60 (Engine Controls And Fuel - 2.7L (L3B) - Repair Instructions) >> Repair Instructions >> Charge Air Cooler Replacement >> 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.
    CAUTION:

    Verify the charge air cooler inlet and outlet air tube quick connect seal condition and location prior to installation. Seal must be evenly seated in the quick connector body and sealing surface must be free of deformation and damage. Deformed or damaged seals can lead to reduced engine power and/or engine stalling.

  1. GM5399175

    Charge Air Cooler (2) - Install

  2. CAUTION:

    Refer to Fastener Caution .

  3. Charge Air Cooler Bolt (1) - Install and tighten [2x] - Fastener Specifications
  4. GM5399146
    NOTE:

    DO NOT insert fingers inside quick connect to manipulate duct during disassembly/assembly. Rubber pad gloves increase risk to dislodge seal.

    Position charge air cooler inlet air tube (2) perpendicular to charge air cooler (3) and install.

  5. Retainer Spring (1) - Engage
  6. Verify connection is properly made by pulling and pushing on the tube at the quick connector location.
  7. GM5399142

    Charge Air Cooler Inlet Air Tube (2) @ Turbocharger (3) - Install

  8. Retainer Spring (1) - Engage
  9. GM5399160

    Charge Air Cooler Outlet Air Tube (2) @ Charge Air Cooler (3) - Install

  10. Retainer Spring (1) - Engage
  11. GM5399157

    Charge Air Cooler Outlet Air Tube (2) @ Throttle Body (3) - Install

  12. Retainer Spring (1) - Engage
  13. Connect the electrical connector.
  14. GM5420297

    Radiator Air Upper Baffle (2) - Install

  15. Radiator Air Upper Baffle Retainer (1) - Install [7x]
  16. GM5422758

    Install the radiator air side baffle (1) by manipulating it between the vehicle components and beneath the radiator air upper baffle.

  17. GM5422705

    Radiator Air Seal Retainer (2) - Install [2x]

  18. Radiator Air Upper Baffle Retainer (1) - Install
  19. GM5427525

    Install the air cleaner (1) and air cleaner outlet duct (2) as an assembly.

  20. GM5427523

    Air Cleaner Outlet Duct Clamp (2) - Tighten - Fastener Specifications

  21. Air Cleaner Bolt (1) - Install and tighten - Fastener Specifications
  22. GM5427515

    Electrical Connector (4) - Connect [2x]

  23. Evaporative Emission Canister Purge Tube (3) - Connect - Plastic Collar Quick Connect Fitting Service
  24. Positive Crankcase Ventilation Tube (2) - Connect - Plastic Collar Quick Connect Fitting Service
  25. Wiring Harness Retainer (1) @ Air Cleaner Assembly - Install [3x]
  26. GM5313404

    Radiator Upper Bracket (3) - Install

  27. Radiator Upper Bracket Bolt (2) - Install and tighten [2x] - Fastener Specifications
  28. Wiring Harness Retainer (1) - Install
  29. Raise the vehicle.
  30. GM5422654

    Radiator Air Seal Retainer (1) - Install [2x]

  31. GM5422327

    Install the radiator air side baffle (1) by manipulating it between the vehicle components and beneath the radiator air upper baffle.

  32. GM5422326

    Wiring Harness Retainer (1) @ Radiator Air Side Baffle - Install

  33. GM5422325

    Radiator Air Seal Retainer (2) - Install [2x]

  34. Radiator Air Upper Baffle Retainer (1) - Install
  35. GM5313403

    Radiator Upper Bracket (2) - Install

  36. Radiator Upper Bracket Bolt (1) - Install and tighten [2x] - Fastener Specifications
  37. Raise the vehicle.
  38. GM5422324

    Radiator Air Seal Retainer (1) - Install [2x]

  39. GM5423336

    Radiator Air Front Lower Baffle (1) - Install

  40. GM5423335

    Radiator Air Front Lower Baffle Retainer (1) - Install [3x]

  41. GM5315124

    Radiator Air Lower Baffle (1) - Install

  42. GM5315104

    Radiator Air Lower Baffle Retainer (2) - Install

  43. Radiator Air Lower Seal Retainer (1) - Install [6x]
  44. GM5407648

    Front Bumper Fascia Center Air Deflector (1) - Install

  45. GM5407644

    Front Bumper Fascia Center Air Deflector Retainer (3) - Install [2x]

  46. Front Bumper Fascia Center Air Deflector Bolt (2) - Install and tighten - Fastener Specifications
  47. Front Bumper Fascia Center Air Deflector Screw (1) - Install and tighten [6x] - Fastener Specifications
  48. GM5407645

    Front Bumper Fascia Center Air Deflector Screws (1) - Install and tighten [10x] - Fastener Specifications .

  49. Remove the support and lower the vehicle.
  50. Start vehicle and listen for whistling at the charge air cooler tube quick connect located at the charge air cooler.