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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 57 (Engine Heating And Cooling - Repair Instructions (1 Of 2)) >> Repair Instructions >> Exhaust Manifold Outlet Pipe Replacement >> Removal Procedure

Removal 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. Drain the cooling system. Cooling System Draining and Filling (LSY GE 47716) , or Cooling System Draining and Filling (LSY Static Fill) , or Cooling System Draining and Filling (LSY with V03 Static Fill) , or Cooling System Draining and Filling (L3B Static Fill) , or Cooling System Draining and Filling (L3B GE 47716) , or Cooling System Draining and Filling (LSY with V03 GE 47716) , or Cooling System Draining and Filling (LF4 Static Fill) , or Cooling System Draining and Filling (LF4 GE 47716) 
  2. Remove the oil fill cap.
  3. GM5432171

    Intake Manifold Cover Bolt (1) - Remove [2x]

  4. Lift up on the front of the intake manifold cover (2).
  5. GM5432174

    Intake Manifold Cover (1) @ Upper Intake Manifold Bracket (2) - Remove

  6. GM5399488

    Electrical Connector (1) @ Engine Coolant Temperature Sensor - Disconnect

  7. Hose Clamp (2) - Disengage - Hose Clamp Replacement Guidelines - Spring Type 
  8. Radiator Surge Tank Inlet Hose (3) @ Exhaust Manifold Outlet Pipe - Remove
  9. GM5399490

    Hose Clamp (1) - Disengage [2x] - Hose Clamp Replacement Guidelines - Spring Type 

  10. Turbocharger Coolant Feed and Return Pipe (2) @ Exhaust Manifold Outlet Pipe - Remove
  11. Heater Inlet Hose (3) @ Exhaust Manifold Outlet Pipe - Remove
  12. GM5399494

    Engine Wiring Harness Connector (1) @ Exhaust Manifold Outlet Pipe - Remove

  13. Exhaust Manifold Outlet Pipe Bolt (2) - Remove
  14. GM5399498

    Engine Wiring Harness Retainer (1) @ Exhaust Manifold Outlet Pipe - Remove

  15. GM5399499

    Exhaust Manifold Outlet Pipe Bolt (1) - Remove

  16. Hose Clamp (2) - Disengage - Hose Clamp Replacement Guidelines - Spring Type 
  17. Exhaust Manifold Outlet Pipe (3) @ Engine Coolant Flow Control Valve - Remove
  18. GM5399501

    Exhaust Manifold Outlet Pipe Bolt (1) - Remove [2x]

  19. Exhaust Manifold Outlet Pipe (2) - Remove
  20. Exhaust Manifold Outlet Pipe Gasket (3) - Remove and DISCARD