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Home >> Cadillac >> 2018 >> Escalade Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 2 (Engine Mechanical - 6.0L (L96)) >> Repair Instructions - On Vehicle >> Engine Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. Place the hood in the service position. Refer to Hood Service Positioning
  2. Remove the front end upper tie bar support. Refer to Front End Upper Tie Bar Support Replacement
  3. Remove the air conditioning condenser. Refer to Air Conditioning Condenser Replacement (L96)
  4. Remove the intake manifold. Refer to Intake Manifold Replacement 
    5. Fig 1: Radiator Vent Inlet Hose, Clamp And Clip
    GM1699347Courtesy of GENERAL MOTORS COMPANY
  5. Remove the radiator vent inlet hose (2) from the radiator inlet hose clip (3).
  6. Reposition the radiator vent inlet hose clamp (1) at the air bleed pipe.
  7. Remove the radiator vent inlet hose (2) from the air bleed pipe and reposition.
    8. Fig 2: Radiator Inlet Hose, Clamp And Clips
    GM1696566Courtesy of GENERAL MOTORS COMPANY
  8. Reposition the radiator inlet hose clamp (3) at the water pump.
  9. Remove the radiator inlet hose from the water pump.
    10. Fig 3: Radiator Outlet Hose
    GM1699336Courtesy of GENERAL MOTORS COMPANY
  10. Reposition the radiator outlet hose clamp at the water pump.
  11. Remove the radiator outlet hose from the water pump.
  12. Remove the heater inlet hose. Refer to Heater Inlet Hose Replacement (L96)
  13. Remove the radiator surge tank outlet hose. Refer to Radiator Surge Tank Outlet Hose Replacement (L96)
    14. Fig 4: Engine Harness Electrical Connectors, Negative Battery Cable And Engine Harness Ground
    GM1697098Courtesy of GENERAL MOTORS COMPANY
  14. Disconnect the engine harness electrical connector (1) from the oil pressure sensor.
  15. Disconnect the engine harness electrical connector (2) from the lifter oil manifold.
  16. Remove the engine ground strap bolt from the cowl rear of the left cylinder head and reposition the ground strap.
  17. Remove the engine harness ground bolt from the right cylinder head and reposition the ground strap.
  18. Remove the negative battery cable terminal (2) and the engine harness ground (3) from the right cylinder head.
  19. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
    20. Fig 5: Engine Harness Clip
    GM3635867Courtesy of GENERAL MOTORS COMPANY
  20. Remove the engine harness clip (3) from the transmission oil cooler line bracket.
    21. Fig 6: Transmission Oil Cooler Line Clip And Bolt
    GM1698074Courtesy of GENERAL MOTORS COMPANY
  21. Remove the transmission oil cooler line clip bolt from the oil pan, if equipped.
    22. Fig 7: Engine Harness Electrical Connectors
    GM1699539Courtesy of GENERAL MOTORS COMPANY
  22. Disconnect the engine harness electrical connector (1) from the A/C refrigerant pressure sensor.
  23. Remove the starter motor. Refer to Starter Replacement (L96)
    24. Fig 8: Coolant Heater Cord
    GM1699547Courtesy of GENERAL MOTORS COMPANY
  24. Disconnect the coolant heater cord from the coolant heater, if equipped.
  25. Lower the vehicle.
  26. Remove the generator. Refer to Generator Replacement (L96)
    27. Fig 9: Generator/Power Steering Pump Bracket And Bolts
    GM310813Courtesy of GENERAL MOTORS COMPANY
  27. Remove the generator and power steering pump bracket bolts.
  28. Position the generator and power steering pump bracket (with power steering pump) aside.
  29. Remove the air conditioning compressor. Refer to Air Conditioning Compressor Replacement (L96)
    30. Fig 10: Transmission Oil Level Indicator Tube Nut
    GM1701027Courtesy of GENERAL MOTORS COMPANY
  30. Remove the transmission oil level indicator tube nut (1).
    31. Fig 11: Transmission Oil Level Indicator Tube And Seal
    GM396798Courtesy of GENERAL MOTORS COMPANY
  31. Remove the transmission oil level indicator tube.
  32. Remove the negative battery cable fastener at the right side of the transmission bell housing and reposition the cable.
  33. Raise the vehicle.
    34. Fig 12: Engine Shield And Bolts
    GM1696602Courtesy of GENERAL MOTORS COMPANY
  34. Remove the engine shield bolts and shield.
    35. Fig 13: Oil Pan Skid Plate And Bolts
    GM1698083Courtesy of GENERAL MOTORS COMPANY
  35. Remove the oil pan skid plate bolts and plate, if equipped.
  36. Drain the engine oil. Refer to Engine Oil and Oil Filter Replacement 
  37. Remove the catalytic converter. Refer to Three-Way Catalytic Converter Replacement
    38. Fig 14: Flywheel To Torque Converter Bolts
    GM1701022Courtesy of GENERAL MOTORS COMPANY
  38. Remove the flywheel to torque converter bolts.
  39. Disconnect the bank two oxygen wire harness from the frame rail and cowl.
  40. Lower the transmission. Refer to Transmission Support Crossmember Replacement (2WD)Transmission Support Crossmember Replacement (4WD)
  41. Remove the transmission heat shield. Refer to Transmission Heat Shield Replacement
  42. Disconnect the transmission electrical connector at the transmission and position harness to the left side of the engine.
  43. Lower the vehicle.
  44. Detach the transmission harness at the back of the engine, position the transmission and bank two wiring harnesses on the engine.
    45. Fig 15: Fuel/Evaporative Emission Pipe Bracket And Nut
    GM1701047Courtesy of GENERAL MOTORS COMPANY
  45. Remove the fuel/evaporative emission (EVAP) pipe bracket nut from the transmission stud (typical installation shown).
  46. Remove the fuel/EVAP pipe bracket from the stud. Reposition the bracket out of the way.
    47. Fig 16: Transfer Case Vent Hose Bracket
    GM1701049Courtesy of GENERAL MOTORS COMPANY
  47. Remove the transfer case vent hose bracket (2) nut from the stud, if equipped.
  48. Reposition the transfer case vent hose bracket and hose out of the way, if equipped.
    49. Fig 17: Automatic Transmission Bolts And Studs
    GM1701040Courtesy of GENERAL MOTORS COMPANY
  49. Remove the transmission bolts/studs.
    50. Fig 18: Clutch Housing Bolts/Studs
    GM775394Courtesy of GENERAL MOTORS COMPANY
  50. If equipped with a manual transmission, remove the transmission and the clutch housing.
  51. If equipped with automatic transmission, install the crossmember. Refer to Transmission Support Crossmember Replacement (2WD)Transmission Support Crossmember Replacement (4WD)
  52. If equipped with automatic transmission, remove the two lower transmission to engine bolts.
  53. Lower the vehicle.
  54. Remove the ignition coil, as required for the proper fit of the EN-41798  engine lifting brackets before lifting the engine. Ignition Coil Replacement
    55. Fig 19: Engine Mount To Engine Bolts - Left Side
    GM1701533Courtesy of GENERAL MOTORS COMPANY
  55. Remove the left side engine mount bracket bolts (1). Refer to Engine Mount Replacement - Left Side (Two Wheel Drive) Engine Mount Replacement - Left Side (Four Wheel Drive) 
  56. Remove the right side engine mount bracket bolts (1). Refer to Engine Mount Replacement - Right Side (Two Wheel Drive) Engine Mount Replacement - Right Side (Four Wheel Drive) 
    57. Fig 20: Engine Lifting Bracket
    GM4215542Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  57. Install the EN-41798  engine lifting brackets to the cylinder heads.

    Tighten 

    • Tighten the M8 engine lift bracket bolts to 25 N.m (18 lb ft).
    • Tighten the M10 engine lift bracket bolts to 50 N.m (37 lb ft).
  58. If equipped with CNG, disconnect the two engine harness connectors at the left frame rail by the CNG control module.
  59. Disconnect the ECM electrical connectors. Refer to Engine Control Module Replacement
  60. Remove the right side front fender rear upper brace. Refer to Front Fender Rear Upper Brace Replacement
  61. Disconnect the lever lock connector at the underhood electrical center.
  62. If equipped, detach the vent hose from the wiring harness at the underhood center.
    63. Fig 21: Underhood Fuse Block Battery Positive Cable, Cover And Fastener
    GM2964102Courtesy of GENERAL MOTORS COMPANY
  63. Remove the underhood fuse block battery positive cable cover (1).
  64. Remove the battery positive cable fastener (2) and remove the battery positive cable (3)
  65. Remove the underhood electrical center. Refer to Underhood Electrical Center or Junction Block Replacement
  66. Detach the engine wiring harness from the underhood electrical center and position harness on engine.
  67. Position and install an engine hoist to the J-41798  engine lifting brackets.
  68. Install a floor jack under the transmission for support.
  69. Remove the engine from the vehicle.
  70. Install the EN-21366  converter holding strap to the transmission in order to hold the torque converter.
  71. Position and install the engine onto an engine stand.
  72. Remove the engine hoist. from the J-41798  engine lifting brackets.
    73. Fig 22: Engine Lifting Bracket
    GM4215542Courtesy of GENERAL MOTORS COMPANY
  73. Remove the EN-41798  engine lifting brackets from the engine.
  74. Transfer parts as necessary.
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