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Home >> GMC >> 2021 >> Yukon XL AT4 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 5.3L (L84) Or 6.2L (L87) - Repair Instructions (10 Of 12) >> Repair Instructions >> Intake Manifold Cover Replacement >> Installation Procedure

Installation Procedure

  1. GM5540992Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Cover (2) - Install

  2. Intake Manifold Cover Bolt (1) - Install and hand tighten [ 4x ]
  3. CAUTION:

    Refer to Fastener Caution .

  4. Intake Manifold Cover Bolt (1) - Tighten [ 4x ] - Fastener Specifications
  5. GM5540975Courtesy of GENERAL MOTORS COMPANY

    Engine Wiring Harness Retainer (1) @ Intake Manifold Cover (2) - Install [ 4x ]

  6. GM5540974Courtesy of GENERAL MOTORS COMPANY

    Engine Wiring Harness Retainer (1) @ Intake Manifold Cover (2) - Install [ 3x ]

  7. GM5540973Courtesy of GENERAL MOTORS COMPANY

    Engine Wiring Harness Retainer (1) @ Intake Manifold Cover (2) - Install [ 4x ]

  8. GM5540971Courtesy of GENERAL MOTORS COMPANY

    Engine Wiring Harness Connector (4) @ Evaporative Emission Canister Purge Solenoid Valve - Connect

  9. Engine Wiring Harness Connector (3) @ Manifold Absolute Pressure Sensor - Connect
  10. Engine Wiring Harness Retainer (2) @ Intake Manifold Cover - Install [ 2x ]
  11. Engine Wiring Harness Connector (1) @ Throttle Body - Connect
  12. GM5538400Courtesy of GENERAL MOTORS COMPANY

    Evaporative Emission Canister Purge Tube (2) @ Evaporative Emission Canister Purge Solenoid Valve - Install

  13. Evaporative Emission Canister Purge Tube Connector (1) @ Evaporative Emission Canister Purge Solenoid Valve - Engage - Plastic Collar Quick Connect Fitting Service
  14. GM5571687Courtesy of GENERAL MOTORS COMPANY

    Plenum Front Panel Outer Reinforcement (1) - Install - Plenum Front Panel Outer Reinforcement Removal and Installation

  15. GM5001379Courtesy of GENERAL MOTORS COMPANY

    Air Cleaner Outlet Duct (3) - Install

  16. Air Cleaner Outlet Duct Clamp (2) - Tighten [ 2x ] - Fastener Specifications
  17. Positive Crankcase Ventilation Fresh Air Tube (1) - Connect - Plastic Collar Quick Connect Fitting Service
  18. GM5001375Courtesy of GENERAL MOTORS COMPANY

    Air Cleaner Outlet Duct Bracket Bolt (1) - Install and tighten - Fastener Specifications

  19. Install engine wiring harness to air cleaner outlet duct bracket.