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Home >> Cadillac >> 2021 >> CT4 V, RWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 2.7L (L3B) - Repair Instructions - Ct4 (3 Of 6) >> Positive Crankcase Ventilation Baffle Replacement >> Removal Procedure

Removal Procedure

  1. Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection
  2. Drain the cooling system. Cooling System Draining and Filling (L3B Static Fill) , or Cooling System Draining and Filling (L3B GE 47716)
  3. Drain the engine oil. Engine Oil and Oil Filter Replacement
  4. Remove the oil fill cap.
  5. GM5432171Courtesy of GENERAL MOTORS COMPANY

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

  6. Lift up on the front of the intake manifold cover (2).
  7. GM5432174Courtesy of GENERAL MOTORS COMPANY

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

  8. GM5456746Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Cover Bolt (1) - Remove

  9. GM5456829Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Cover Insulator (1) - Remove

  10. GM5504092Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    Refer to Diesel/Gasoline Vapors Warning .

    WARNING:

    Refer to Safety Glasses Warning .

    Fuel Feed Pipe (1) - Disconnect and reposition

  11. Evaporative Emission Pipe (2) - Disconnect and reposition
  12. GM5504095Courtesy of GENERAL MOTORS COMPANY

    Evaporative Emission Canister Purge Tube (1) - Disconnect and reposition

  13. Retainer (2) - Unclip [3x]
  14. Radiator Surge Tank Inlet Hose (3) - Reposition
  15. GM5509132Courtesy of GENERAL MOTORS COMPANY

    Throttle Body Electrical Connector (1) - Disconnect

  16. GM5504108Courtesy of GENERAL MOTORS COMPANY

    Engine Wiring Harness Bolt (1) - Remove

  17. Electrical Connector (2) - Disconnect [2x]
  18. Retainer (3) - Unclip [4x]
  19. Engine Wiring Harness (4) - Reposition
  20. GM5402098Courtesy of GENERAL MOTORS COMPANY

    Evaporative Emission Canister Purge Pump Bolt (1) - Remove [3x]

  21. Evaporative Emission Canister Purge Pump (2) - Remove
  22. GM5507437Courtesy of GENERAL MOTORS COMPANY

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

  23. Intake Manifold Cover Stud (2) - Remove [3x]
  24. GM5507441Courtesy of GENERAL MOTORS COMPANY

    Upper Intake Manifold Cover (1) - Remove

  25. GM5517201Courtesy of GENERAL MOTORS COMPANY

    Oil Level Indicator Tube Bracket Bolt (1) - Remove

  26. Oil Level Indicator Tube (2) - Remove
  27. GM5399157Courtesy of GENERAL MOTORS COMPANY

    Retainer Spring (1) - Release

  28. Charge Air Cooler Outlet Air Tube (2) @ Throttle Body (3) - Remove
  29. GM5507451Courtesy of GENERAL MOTORS COMPANY

    Retainer (1) - Unclip

  30. GM5508646Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Bolt (1) - Remove [6x]

  31. GM5507557Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold (1) - Remove

  32. Fig 1: Identifying Intake Manifold Components (L3B)
    GM5045008Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Gasket (3) - Remove and DISCARD [4x]

  33. Crankcase Vent Passage Seal (4) - Remove and DISCARD
  34. GM5399671Courtesy of GENERAL MOTORS COMPANY

    Hose Clamp (1) - Disengage [3x] - Hose Clamp Replacement Guidelines - Spring Type

  35. Thermostat Bypass Pipe (2) @ Engine Coolant Flow Control Valve - Remove
  36. Radiator Inlet Hose (3) @ Engine Coolant Flow Control Valve - Remove
  37. Engine Oil Cooler Coolant Inlet Hose (4) @ Engine Coolant Flow Control Valve - Remove
  38. GM5399673Courtesy of GENERAL MOTORS COMPANY

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

  39. Exhaust Manifold Outlet Pipe (2) @ Engine Coolant Flow Control Valve - Remove
  40. Engine Coolant Thermostat Housing Inlet Pipe (3) @ Engine Coolant Flow Control Valve - Remove
  41. GM5399683Courtesy of GENERAL MOTORS COMPANY

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

  42. Electrical Connector (2) @ Engine Coolant Flow Control Valve - Disconnect [2x]
  43. GM5399685Courtesy of GENERAL MOTORS COMPANY

    Engine Coolant Flow Control Valve Bolt (1) - Remove [5x]

  44. GM5399689Courtesy of GENERAL MOTORS COMPANY

    Engine Coolant Flow Control Valve (1) - Remove

  45. Engine Coolant Flow Control Valve Seal (2) - Remove and DISCARD
  46. Raise and support the vehicle. Lifting and Jacking the Vehicle
  47. GM5417233Courtesy of GENERAL MOTORS COMPANY

    Auxiliary Generator Battery Jumper Cable Terminal Nut (1) - Remove

  48. Auxiliary Generator Battery Jumper Cable (2) - Reposition away
  49. Retainer (3) - Disengage
  50. GM5417249Courtesy of GENERAL MOTORS COMPANY

    Starter Stud (1) - Remove

  51. Starter Bolt (2) - Remove [2x]
  52. Reposition the starter to gain access to the electrical connections.
  53. GM5417288Courtesy of GENERAL MOTORS COMPANY

    Battery Positive Cable Nut (1) @ Starter Solenoid - Remove

  54. Auxiliary Generator Battery Jumper Cable (2) - Remove
  55. Electrical Connector (4) - Disconnect
  56. Starter (3) - Remove
  57. GM5026482Courtesy of GENERAL MOTORS COMPANY

    Positive Crankcase Ventilation Baffle Bolt (1) - Remove [12x]

  58. NOTE:

    Use the pry points indicated by arrows.

  59. Positive Crankcase Ventilation Baffle (2) - Remove