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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Mechanical - 3.0L (Lm2) Diesel - Repair Instructions (1 Of 11)) >> Repair Instructions >> Engine Mount Replacement - Left Side (F48) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
  1. GM5217866Courtesy of GENERAL MOTORS COMPANY

    Engine Mount (1) - Install

  2. If equipped, connect electrical connector at the rear of engine mount.
  3. GM5217861Courtesy 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.
    4. CAUTION:

    Refer to Fastener Caution .

  4. Install and tighten the 2 NEW engine mount engine side bolts (1). Fastener Specifications
  5. Lower the engine.
  6. GM5217393Courtesy 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.
  7. Install and tighten the 3 NEW engine mount frame side bolts (1). Fastener Specifications
  8. Remove the lifting device from the EN-36857  Engine Lift Bracket.
  9. Position and attach engine coolant heater cord retainers as necessary.
  10. GM5206143Courtesy of GENERAL MOTORS COMPANY

    Engine Oil Cooler Gasket (3) - Install NEW

  11. Engine Oil Cooler Gasket (2) - Install NEW
  12. Engine Oil Cooler (1) - Install
  13. GM5206140Courtesy of GENERAL MOTORS COMPANY

    Engine Oil Cooler Bolt (1) - Install and tighten [5x] - Fastener Specifications

  14. GM5206138Courtesy of GENERAL MOTORS COMPANY

    Engine Oil Cooler Coolant Inlet Hose (5) @Engine Oil Cooler - Install

  15. Automatic Transmission Fluid Cooling Heat Exchanger Outlet Hose (4) @Engine Oil Cooler - Install
  16. Engine Oil Cooler Coolant Outlet Hose (3) @Engine Oil Cooler - Install
  17. Engine Oil Cooler Coolant Inlet Hose Clamp (2) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  18. Thermostat Bypass Hose Clamp (1) - Engage [2x] - Hose Clamp Replacement Guidelines - Spring Type
  19. GM5153852Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Fluid Cooling Exchanger (1) - Install

  20. GM5153851Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Fluid Cooling Exchanger Bolt (1) - Install and tighten [2x] - Fastener Specifications

  21. Automatic Transmission Fluid Cooling Exchanger Nut (2) - Install and tighten - Fastener Specifications
  22. GM5627016Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Remove the caps from the fittings and plugs from the holes before installing the transmission fluid cooler pipes.

  23. Transmission Fluid Cooler Seal (2) - Install NEW
  24. Transmission Fluid Cooler Pipe Seal (3) - Install NEW [2x]
  25. Transmission Fluid Cooler Inlet and Outlet Pipe (1) - Install
  26. GM5153479Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Pipe Bolt (2) - Install and tighten - Fastener Specifications

  27. Transmission Fluid Cooler Pipe Nut (1) - Install and tighten [2x] - Fastener Specifications
  28. GM5629592Courtesy of GENERAL MOTORS COMPANY

    Fuel Heater Inlet and Outlet Bolt (3) - Install and tighten - Fastener Specifications

  29. GM5043749Courtesy of GENERAL MOTORS COMPANY

    Front Axle Propeller Shaft (3) - Install

  30. GM5043426Courtesy of GENERAL MOTORS COMPANY

    Align the reference marks made between the front axle propeller shaft (1) and the front differential drive pinion gear yoke.

  31. Front Axle Propeller Shaft Washer (3) - Install [3x]
  32. 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.
  33. Install the 6 front axle propeller shaft bolts (2) and tighten in a crisscross pattern. Fastener Specifications
  34. GM5153858Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Fluid Cooling Heat Exchanger Inlet Hose (2) - Install

  35. Automatic Transmission Fluid Cooling Heat Exchanger Inlet Hose Clamp (1) - Engage [2x] - Hose Clamp Replacement Guidelines - Spring Type
  36. GM5153864Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Fluid Cooling Heat Exchanger Outlet Hose (2) - Install

  37. Automatic Transmission Fluid Cooling Heat Exchanger Outlet Hose Clamp (1) - Engage [2x] - Hose Clamp Replacement Guidelines - Spring Type
  38. Front Wheelhouse Liner - Install - Front Wheelhouse Liner Replacement
  39. GM5217856Courtesy of GENERAL MOTORS COMPANY

    Remove the EN-36857  Engine Lift Bracket (1) from the front left side of the cylinder head using EN-51768  Engine Support Fixture Adaptor Bolt - M8 (2).

  40. GM5609033Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Coolant Feed and Return Pipe Gasket- Right Side Upper (1) - Install NEW

  41. GM5203915Courtesy of GENERAL MOTORS COMPANY

    Install the right upper coolant air bleed hose bolt (1). Fastener Specifications

  42. GM5853704Courtesy of GENERAL MOTORS COMPANY

    {If equipped} Ground Cable (2) - Install

  43. {If equipped} Engine Wiring Harness Ground Bolt (1) - Install and tighten - Ground Repair
  44. GM5138658Courtesy of GENERAL MOTORS COMPANY

    Install the fuel injector wiring harness connector (1) to the engine coolant air bleed bracket.

  45. GM5203874Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Position the engine wiring harness channel (3) to the front of the engine.

  46. Engine Wiring Harness Bracket Bolt (2) - Install and tighten - Fastener Specifications
  47. Engine Wiring Harness Bracket Nut (1) - Install and tighten [2x] - Fastener Specifications
  48. Oil Filler Cap - Remove
  49. GM5171779Courtesy of GENERAL MOTORS COMPANY

    Intake Manifold Cover (2) - Install

  50. Intake Manifold Cover Bolt (1) - Install and tighten - Fastener Specifications
  51. Oil Filler Cap - Install
  52. Fill the cooling system. Cooling System Draining and Filling (Static LM2) , or Cooling System Draining and Filling (GE 47716 LM2)
  53. Fill the engine oil to the proper level with NEW engine oil. Engine Oil and Oil Filter Replacement
  54. Check the transmission fluid level. Transmission Fluid Level and Condition Check
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