LEMON Manuals: Even more car manuals for everyone
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 >> Engine Mount Replacement - Left Side >> Installation Procedure

Installation Procedure

  1. GM5030893Courtesy of GENERAL MOTORS COMPANY

    Engine Mount- Left Side (1) - Install

  2. GM5028836Courtesy of GENERAL MOTORS COMPANY

    Prepare the 4 engine mount engine side bolts for installation as follows:

    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  3. Engine Mount Engine Side Bolt- Left Side (1) - Install and hand tighten [ 4x ]
    4. CAUTION:

    Refer to Fastener Caution .

  4. Engine Mount Engine Side Bolt- Left Side (1) - Tighten [ 4x ] - Fastener Specifications
  5. Lower the engine.
  6. GM5297905Courtesy of GENERAL MOTORS COMPANY

    Prepare the 3 engine mount frame side bolts for installation as follows:

    1. Remove any loose cured adhesive from the external threads of the component using a lint free cloth.
    2. Thread the cleaned component into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the component. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  7. Engine Mount Frame Side Bolt- Left Side (1) - Install and hand tighten [ 3x ]
  8. Engine Mount Frame Side Bolt- Left Side (1) - Tighten in sequence [ 3x ] - Fastener Specifications
  9. GM5034026Courtesy of GENERAL MOTORS COMPANY

    Remove the EN-52059  Engine Support Fixture Adaptor Bolt - M10 and EN-36857  Engine Lift Bracket (1) from the front of the left side cylinder head.

  10. GM5001105Courtesy of GENERAL MOTORS COMPANY

    Exhaust System Seal (1) - Install NEW

  11. GM5647178Courtesy of GENERAL MOTORS COMPANY

    Exhaust Manifold Gasket (2) - Install NEW

  12. Exhaust Manifold- Left Side (1) - Install
  13. GM5647175Courtesy of GENERAL MOTORS COMPANY

    If NEW threaded components are being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded components are reused, prepare the threaded components using the following steps:

    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  14. Exhaust Manifold Bolt (1) - Install NEW and tighten in sequence [ 5x ] - Fastener Specifications
  15. GM5647218Courtesy of GENERAL MOTORS COMPANY

    Exhaust Manifold Heat Shield- Left Side (1) - Install

  16. GM5647219Courtesy of GENERAL MOTORS COMPANY

    Through the wheel opening, install and tighten the 3 left side exhaust manifold heat shield bolts (1). Fastener Specifications

  17. GM5639672Courtesy of GENERAL MOTORS COMPANY

    Push the boot of the 4 spark plug wires (1) onto the 4 gas engine ignition spark plugs (2) until 2 audible clicks are heard.

  18. GM5002171Courtesy of GENERAL MOTORS COMPANY

    Upper Intermediate Steering Shaft (1) @ Intermediate Steering Shaft - Install

  19. GM5002170Courtesy of GENERAL MOTORS COMPANY

    If a NEW threaded component is being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded component is reused, prepare the threaded component using the following steps:

    1. Remove any loose cured adhesive from the external threads of the component using a lint free cloth.
    2. Thread the cleaned component into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the component. Adhesives, Fluids, Lubricants, and Sealers
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
  20. Mid Intermediate Steering Shaft Bolt (1) - Install and tighten - Fastener Specifications
  21. GM5584496Courtesy of GENERAL MOTORS COMPANY

    Exhaust Front Pipe Nut- Left Side (1) - Install and tighten [ 3x ] - Fastener Specifications

  22. GM5508824Courtesy of GENERAL MOTORS COMPANY

    Exhaust Front Pipe Heat Shield (2) - Install

  23. Exhaust Heat Shield Bolt (1) - Install and tighten - Fastener Specifications
  24. GM5525401Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    A special anti-seize compound is used in the HO2S threads. The compound consists of liquid graphite and glass beads. The graphite tends to burn away, but the glass beads remain, making the sensor easier to remove. New, or service replacement sensors already have the compound applied to the threads. If the sensor is removed from an exhaust component and if for any reason the sensor is to be reinstalled, the threads must have anti-seize compound applied before reinstallation. Adhesives, Fluids, Lubricants, and Sealers

    CAUTION:

    Refer to Component Fastener Tightening Caution .

    Install and tighten the heated oxygen sensor (1) using a suitable tool. Fastener Specifications

  25. Connect the heated oxygen sensor electrical connector.
  26. Front Wheelhouse Liner - Install - Front Wheelhouse Liner Replacement
  27. Lower the vehicle.
  28. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection (KL9)
  29. Start the engine and check for exhaust leaks.
scientia non olet · About LEMON Manuals