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Home >> Chevrolet >> 2021 >> Blazer RS, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Mechanical - 2.5L (LCV)) >> Repair Instructions >> Intake Manifold Replacement >> Removal Procedure

Removal Procedure

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  1. GM4363885Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Cover (3) - Remove - Intake Manifold Cover Replacement 

  2. GM4362759Courtesy of GENERAL MOTORS COMPANY

    Air Cleaner Outlet Duct (2) - Remove - Air Cleaner Outlet Duct Replacement

  3. GM4338170Courtesy of GENERAL MOTORS COMPANY

    Positive Crankcase Ventilation Hose (1) Remove - Positive Crankcase Ventilation Hose/Pipe/Tube Replacement 

  4. GM4360322Courtesy of GENERAL MOTORS COMPANY

    Evaporative Emission Canister Purge Solenoid Valve (1) - Remove - Evaporative Emission Canister Purge Solenoid Valve Replacement

  5. GM4376306Courtesy of GENERAL MOTORS COMPANY

    Throttle Body Assembly (2) - Remove - Throttle Body Assembly Replacement

  6. GM4377372Courtesy of GENERAL MOTORS COMPANY

    Radiator Surge Tank Inlet Hose (3) @ Engine Coolant Air Bleed Pipe - Remove - Engine Coolant Air Bleed Pipe Replacement (LCV)

  7. GM5409342Courtesy of GENERAL MOTORS COMPANY

    Engine Wiring Harness (1) @ Intake Manifold - Unclip [2x]

  8. GM4364603Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) - Disconnect

  9. Electrical Connector (2) - Disconnect
  10. Electrical Connector (3) - Disconnect
  11. Engine Wiring Harness (4) - Reposition away
  12. GM5156908Courtesy of GENERAL MOTORS COMPANY

    Engine Wiring Harness Retainer (1) @ Intake Manifold - Remove [2x]

  13. Raise the vehicle. Lifting and Jacking the Vehicle
  14. GM5156918Courtesy of GENERAL MOTORS COMPANY

    Engine Wiring Harness Retainer (1) @ Intake Manifold - Remove [2x]

  15. 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.

    Intake Manifold Bolt (1) - Loosen

  16. Lower the vehicle. Lifting and Jacking the Vehicle
  17. GM5409389Courtesy of GENERAL MOTORS COMPANY

    Positive Crankcase Ventilation Valve Bolt (1) - Remove [2x]

  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. GM4340592Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Bolt (2) - Loosen [5x]

  23. Intake Manifold (3) - Reposition away
  24. GM4093213Courtesy of GENERAL MOTORS COMPANY

    Fuel Injection Fuel Rail Fuel Pressure Sensor (3) - Remove - Fuel Rail Pressure Sensor Replacement

  25. GM5411144Courtesy of GENERAL MOTORS COMPANY

    Rotate the intake manifold (1) approximately 180 degrees so that the bottom is facing up.

  26. Intake Manifold (1) - Remove
  27. GM4340698Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Gasket (1) - Remove and DISCARD

  28. Clean and inspect the intake manifold. Intake Manifold Cleaning and Inspection