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Home >> GMC >> 2021 >> Acadia SL >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical - 2.5L (LCV) >> Repair Instructions >> Intake Manifold Replacement >> Removal Procedure

Removal Procedure

  1. Intake Manifold Cover (3) - Remove - Intake Manifold Cover Replacement 
    GM4363885Courtesy of GENERAL MOTORS COMPANY
  2. Air Cleaner Outlet Duct (2) - Remove - Air Cleaner Outlet Duct Replacement
    GM4362759Courtesy of GENERAL MOTORS COMPANY
  3. Positive Crankcase Ventilation Hose (1) Remove - Positive Crankcase Ventilation Hose/Pipe/Tube Replacement 
    GM4338170Courtesy of GENERAL MOTORS COMPANY
  4. Evaporative Emission Canister Purge Solenoid Valve (1) - Remove - Evaporative Emission Canister Purge Solenoid Valve Replacement
    GM4360322Courtesy of GENERAL MOTORS COMPANY
  5. Throttle Body Assembly (2) - Remove - Throttle Body Assembly Replacement
    GM4376306Courtesy of GENERAL MOTORS COMPANY
  6. Radiator Surge Tank Inlet Hose (3) @ Engine Coolant Air Bleed Pipe - Remove - Engine Coolant Air Bleed Pipe Replacement (LCV)
    GM4377372Courtesy of GENERAL MOTORS COMPANY
  7. Engine Wiring Harness (1) @ Intake Manifold - Unclip [2x]
    GM5409342Courtesy of GENERAL MOTORS COMPANY
  8. Electrical Connector (1) - Disconnect
    GM4364603Courtesy of GENERAL MOTORS COMPANY
  9. Electrical Connector (2) - Disconnect
  10. Electrical Connector (3) - Disconnect
  11. Engine Wiring Harness (4) - Reposition away
  12. Engine Wiring Harness Retainer (1) @ Intake Manifold - Remove [2x]
    GM5156908Courtesy of GENERAL MOTORS COMPANY
  13. Raise the vehicle. Lifting and Jacking the Vehicle
  14. Engine Wiring Harness Retainer (1) @ Intake Manifold - Remove [2x]
    GM5156918Courtesy of GENERAL MOTORS COMPANY
  15. Intake Manifold Bolt (1) - Loosen
    GM4340592Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The intake manifold bolts are retained in the intake manifold. Fully loosen the bolts until the threads are disengaged from the cylinder head.

  16. Lower the vehicle. Lifting and Jacking the Vehicle
  17. Positive Crankcase Ventilation Valve Bolt (1) - Remove [2x]
    GM5409389Courtesy of GENERAL MOTORS COMPANY
  18. Remove the positive crankcase ventilation valve - secondary (2).
  19. Remove the positive crankcase ventilation valve - fresh (3).
  20. NOTE:

    Inspect the O-ring and replace if necessary.

  21. Positive Crankcase Ventilation Valve Seal (4) - Remove and DISCARD [2x]
  22. Intake Manifold Bolt (2) - Loosen [5x]
    GM4340592Courtesy of GENERAL MOTORS COMPANY
  23. Intake Manifold (3) - Reposition away
  24. Fuel Injection Fuel Rail Fuel Pressure Sensor (3) - Remove - Fuel Rail Pressure Sensor Replacement
    GM4093213Courtesy of GENERAL MOTORS COMPANY
  25. Rotate the intake manifold (1) approximately 180 degrees so that the bottom is facing up.
    GM5411144Courtesy of GENERAL MOTORS COMPANY
  26. Intake Manifold (1) - Remove
  27. Intake Manifold Gasket (1) - Remove and DISCARD
    GM4340698Courtesy of GENERAL MOTORS COMPANY
  28. Clean and inspect the intake manifold. Intake Manifold Cleaning and Inspection