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Home >> Chevrolet >> 2022 >> Tahoe SSV >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 19 (Engine Mechanical - 3.0L (Lm2) Diesel - Repair Instructions (5 Of 11)) >> Repair Instructions >> Timing Chain Upper Cover Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
    NOTE:

    Use all components included with the service kit.

  1. Engine - Remove - Engine Removal and Installation (4WD, with RC1, without F47) , or Engine Removal and Installation (2WD, with RC1, without F47) Engine Removal and Installation (4WD, with RC1, with F47) , or Engine Removal and Installation (2WD, with RC1, with F47) , or Engine Removal and Installation (4WD, with WTX, with F47) , or Engine Removal and Installation (2WD, with WTX, with F47) , or Engine Removal and Installation (4WD, with WTX, without F47) , or Engine Removal and Installation (2WD, with WTX, without F47)
  2. GM5207474Courtesy of GENERAL MOTORS COMPANY

    Install the EN-52449  Engine Stand Adapter (2) to the engine block (1).

  3. Install the EN-52449  Engine Stand Adapter (2) and the engine as assembled to a suitable engine stand.
  4. Remove the EN-52474  Engine Lift Bracket Set.
  5. GM5135087Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    The noise cancelling foam component MUST be replaced if it has been exposed to engine fluids. Failure to replace the noise cancelling foam component that has been exposed to engine fluids may result in an engine fire resulting in catastrophic engine damage, and possible injury or death.

    Camshaft Housing Cover Insulator (1) - Remove

  6. GM5156855Courtesy of GENERAL MOTORS COMPANY

    Remove the 2 high pressure diesel fuel feed to rail pipe bracket bolts (1).

  7. Unclip the fuel injector fuel return pipe retainer (2).
  8. GM5156867Courtesy of GENERAL MOTORS COMPANY

    Disconnect the 2 high pressure diesel fuel feed to rail pipe fittings (1) from the high pressure diesel fuel injection rail.

  9. GM5156838Courtesy of GENERAL MOTORS COMPANY

    Disconnect the 2 high pressure diesel fuel feed to rail pipe fittings (1) from the high pressure diesel fuel pump.

  10. GM5156840Courtesy of GENERAL MOTORS COMPANY

    Fuel Feed Pipe Clip Bolt (1) - Remove

  11. Fuel Return Pipe Clip Bolt (2) - Remove
  12. GM5154341Courtesy of GENERAL MOTORS COMPANY

    Diesel Fuel Separator Bracket Bolt (1) - Remove

  13. GM5628961Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do NOT reuse the high pressure diesel fuel feed pipes.

    Remove the high pressure diesel fuel feed to rail pipe (2) and DISCARD.

  14. GM5158555Courtesy of GENERAL MOTORS COMPANY

    Remove the fuel injection fuel feed pipe bracket bolt (1).

  15. Remove the fuel injection fuel feed pipe bracket (2).
  16. GM5158567Courtesy of GENERAL MOTORS COMPANY

    Loosen the 12 high pressure diesel fuel feed pipe nuts (1) from the fuel injectors and the fuel injection rail.

    17. NOTE:

    Do NOT reuse the high pressure diesel fuel feed pipes.

  17. Remove and DISCARD the 6 high pressure diesel fuel feed to injector pipes (2).
  18. GM5621181Courtesy of GENERAL MOTORS COMPANY

    Disconnect and reposition the fuel injector wiring harness, as needed.

  19. Retainer (3) - Disengage
  20. Fuel Injection Fuel Return Pipe Locking Spring (4) - Disengage [6x]
  21. GM5621182Courtesy of GENERAL MOTORS COMPANY

    Fuel Injection Fuel Return Pipe (1) - Reposition

  22. GM5159300Courtesy of GENERAL MOTORS COMPANY

    Disconnect the 6 high pressure diesel fuel injector electrical connectors (1).

  23. Disconnect the 8 fuel injector wiring harness retainers (2) and reposition the fuel injector wiring harness out of the way.
  24. GM5136920Courtesy of GENERAL MOTORS COMPANY

    Fuel Injector Bolt (1) - Remove [6x]

  25. Multiport Fuel Injector Bracket (2) - Remove [6x]
  26. GM5136921Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Mark the location of the high pressure diesel fuel injectors.

    Using the EN-52451  Fuel Injector Remover (3) and EN-51146-1-3  Sliding Hammer (1), remove the 6 high pressure diesel fuel injectors (2).

  27. GM5136923Courtesy of GENERAL MOTORS COMPANY

    Remove and DISCARD the 6 fuel injector seals (2) and 6 fuel injector washers (3).

  28. GM5203915Courtesy of GENERAL MOTORS COMPANY

    Engine Coolant Air Bleed Hose Stud (2) - Remove

  29. GM5135103Courtesy of GENERAL MOTORS COMPANY

    Positive Crankcase Ventilation Hose Clamp (1) - Release [2x] - Hose Clamp Replacement Guidelines - Spring Type

  30. Positive Crankcase Ventilation Hose (2) - Remove
  31. Fig 1: Exploded View Of Compressor Air Intake Turbocharger Components
    GM5136702Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Oil Return Pipe Bolt (7) - Remove [2x]

  32. Lower Crankcase Extension Bolt (9) Remove
  33. Turbocharger Oil Return Pipe Bolt (8) - Remove [2x]
  34. Turbocharger Nut (2, 4) - Remove and DISCARD [3x]
  35. Turbocharger Assembly (1) - Remove
  36. Turbocharger Gasket (3) - Remove and DISCARD
  37. Turbocharger Oil Return Pipe Gasket (6) - Remove and DISCARD
  38. Turbocharger Oil Return Pipe Gasket (5) - Remove and DISCARD
  39. GM5222242Courtesy of GENERAL MOTORS COMPANY

    Camshaft Housing Cover Bolt (1) - Loosen [7x]

  40. Camshaft Housing Cover Bolt (2) - Loosen [3x]
  41. Camshaft Housing Cover Bolt (3) - Loosen [9x]
  42. Camshaft Housing Cover Bolt (4) - Loosen [7x]
  43. GM5138527Courtesy of GENERAL MOTORS COMPANY

    Camshaft Cover (1) - Remove

  44. Camshaft Housing Gasket (2) - Remove and DISCARD [2x]
  45. Camshaft Housing Cover Insulator (3) - Remove and DISCARD [26x]
  46. GM5138708Courtesy of GENERAL MOTORS COMPANY

    Timing Chain Cover Bolt (3) - Remove [4x]

  47. Timing Chain Cover Bolt (4) - Remove [2x]
  48. Timing Chain Upper Cover (1) @ Cylinder Head - Remove
  49. Engine Front Cover Locating Pin (2) @ Cylinder Head - Remove [2x]
  50. Transfer components as necessary.
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