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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 >> Installation Procedure

Installation 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.
    Fig 1: Engine Lifting Bracket
    GM4215542Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  1. Install the EN-41798  engine lifting brackets to the engine.

    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).
  2. Position and install the engine hoist to the J-41798  engine lifting brackets.
  3. Remove the engine from the engine stand.
  4. Remove the EN-21366  converter holding strap from the transmission.
  5. Install the engine to the vehicle.
  6. Align and install the engine to the transmission. Raise or lower the transmission as required using the floor jack.
  7. Once aligned and mated together completely lower and remove the engine hoist.
    8. Fig 2: Engine Mount To Engine Bolts - Left Side
    GM1701533Courtesy of GENERAL MOTORS COMPANY
  8. Install 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) 
    9. Fig 3: Engine Mount To Engine Bolts - Right Side
    GM1701534Courtesy of GENERAL MOTORS COMPANY
  9. Install 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) 
  10. Remove the floor jack from under the transmission.
  11. Position the engine wiring harness and attach it to the underhood electrical center.
  12. Install the underhood electrical center. Refer to Underhood Electrical Center or Junction Block Replacement
    13. Fig 4: Underhood Fuse Block Battery Positive Cable, Cover And Fastener
    GM2964102Courtesy of GENERAL MOTORS COMPANY
  13. Install the battery positive cable (3) and install the battery positive cable fastener (2). Tighten the fastener to 15 N.m (11 lb ft)
  14. Install the underhood fuse block battery positive cable cover (1).
  15. If equipped, attach the vent hose to the wiring harness at the underhood center.
  16. Connect the lever lock connector at the underhood electrical center.
  17. Install the right side front fender rear upper brace. Refer to Front Fender Rear Upper Brace Replacement
  18. Connect the ECM electrical connectors. Refer to Engine Control Module Replacement
  19. If equipped with CNG, connect the two engine harness connectors at the left frame rail by the CNG control module.
  20. Position and attach the oxygen sensors and transmission wiring harnesses to the engine
  21. Raise the vehicle.
    22. Fig 5: Clutch Housing Bolts/Studs
    GM775394Courtesy of GENERAL MOTORS COMPANY
  22. If equipped with a manual transmission, install the transmission and the clutch housing.

    Tighten 

    Tighten the bolts/studs to 50 N.m (37 lb ft).

    23. Fig 6: Automatic Transmission Bolts And Studs
    GM1701040Courtesy of GENERAL MOTORS COMPANY
  23. Install the transmission bolts/studs.

    Tighten 

    Tighten the bolts/studs to 50 N.m (37 lb ft).

    24. Fig 7: Transfer Case Vent Hose Bracket
    GM1701049Courtesy of GENERAL MOTORS COMPANY
  24. Position the transfer case vent hose bracket and hose and install the bracket to the stud, if equipped.

    Tighten 

    Tighten the nut to 20 N.m (15 lb ft).

    25. Fig 8: Fuel/Evaporative Emission Pipe Bracket And Nut
    GM1701047Courtesy of GENERAL MOTORS COMPANY
  25. Position the fuel/EVAP pipe bracket and install the bracket to the stud. (typical installation shown).
  26. Install the fuel/EVAP pipe bracket nut to the transmission stud

    Tighten 

    Tighten the nut to 20 N.m (15 lb ft).

  27. Connect the transmission electrical connector.
  28. Connect the oxygen sensors.
  29. Install the transmission heat shield. Refer to Transmission Heat Shield Replacement
    30. Fig 9: Flywheel To Torque Converter Bolts
    GM1701022Courtesy of GENERAL MOTORS COMPANY
  30. Align the torque converter bolt holes to the flywheel bolt holes.
  31. Install the flywheel to torque converter bolts and tighten to 63 N.m (46 lb ft)
  32. Install the catalytic converter. Refer to Three-Way Catalytic Converter Replacement
  33. Lower the vehicle.
    34. Fig 10: Engine Lifting Bracket
    GM4215542Courtesy of GENERAL MOTORS COMPANY
  34. Remove the J-41798  engine lifting brackets from the cylinder heads.
  35. Install the ignition coil(s) and spark plug wire(s), as required. Refer to Ignition Coil Replacement
  36. Install the negative battery cable and fastener at the right side of the transmission. Tighten fastener to 15 N.m (11 lb ft)
    37. Fig 11: Transmission Oil Level Indicator Tube And Seal
    GM396798Courtesy of GENERAL MOTORS COMPANY
  37. Install the transmission oil level indicator tube.
    38. Fig 12: Transmission Oil Level Indicator Tube Nut
    GM1701027Courtesy of GENERAL MOTORS COMPANY
  38. Install the transmission oil level indicator tube nut (1).

    Tighten 

    Tighten the nut to 25 N.m (18 lb ft).

  39. Install the air conditioning compressor. Refer to Air Conditioning Compressor Replacement (L96)
    40. Fig 13: Generator/Power Steering Pump Bracket And Bolts
    GM310813Courtesy of GENERAL MOTORS COMPANY
  40. Position the generator and power steering bracket (with power steering pump) to the engine.
  41. Install the (4) bracket bolts.

    Tighten 

    Tighten the bolts to 50 N.m (37 lb ft).

  42. Install the generator. Refer to Generator Replacement (L96)
  43. Raise the vehicle.
    44. Fig 14: Coolant Heater Cord
    GM1699547Courtesy of GENERAL MOTORS COMPANY
  44. Connect the coolant heater cord to the coolant heater, if equipped.
    45. Fig 15: CKP Sensor Connector, Knock Sensor Connector And Engine Harness Clip
    GM3635867Courtesy of GENERAL MOTORS COMPANY
  45. Connect the engine harness electrical connector (1) to the CKP sensor.
  46. Connect the engine harness electrical connector (2) to the knock sensor.
  47. Install the engine harness clip (3) to the transmission oil cooler line bracket.
  48. Install the starter motor. Refer to Starter Replacement (L96)
    49. Fig 16: Engine Harness Electrical Connectors
    GM1699539Courtesy of GENERAL MOTORS COMPANY
  49. Connect the engine harness electrical connector (1) to the A/C refrigerant pressure sensor.
    50. Fig 17: Transmission Oil Cooler Line Clip And Bolt
    GM1698074Courtesy of GENERAL MOTORS COMPANY
  50. Position the transmission oil cooler line clip to the oil pan and install the bolt, if equipped.

    Tighten 

    Tighten the bolt to 9 N.m (80 lb in).

  51. Lower the vehicle.
  52. Position the engine harness ground to the right cylinder head.
  53. Install the stud to the right cylinder head.

    Tighten 

    Tighten the stud to 25 N.m (18 lb ft).

  54. Position the engine ground strap to the cowl.
  55. Install the engine ground strap bolt cowl.

    Tighten 

    Tighten the bolt to 16 N.m (12 lb ft).

    56. Fig 18: Engine Harness Electrical Connectors And Retaining Clip
    GM1697098Courtesy of GENERAL MOTORS COMPANY
  56. Connect the engine harness electrical connector (1) to the oil pressure sensor.
  57. Connect the engine harness electrical connector (2) to the lifter oil manifold.
  58. install the radiator surge tank outlet hose. Refer to Radiator Surge Tank Outlet Hose Replacement (L96)
  59. Install the heater inlet hose. Refer to Heater Inlet Hose Replacement (L96)
    60. Fig 19: Radiator Outlet Hose
    GM1699336Courtesy of GENERAL MOTORS COMPANY
  60. Install the radiator outlet hose to the water pump.
  61. Position the radiator outlet hose clamp at the water pump.
    62. Fig 20: Radiator Inlet Hose, Clamp And Clips
    GM1696566Courtesy of GENERAL MOTORS COMPANY
  62. Install the radiator inlet hose to the water pump.
  63. Position the radiator inlet hose clamp (3) at the water pump.
    64. Fig 21: Radiator Vent Inlet Hose, Clamp And Clip
    GM1699347Courtesy of GENERAL MOTORS COMPANY
  64. Position and install the radiator vent inlet hose (2) to the air bleed pipe.
  65. Position the radiator vent inlet hose clamp (1) at the air bleed pipe.
  66. Install the radiator vent inlet hose (2) to the radiator inlet hose clip (3).
  67. Position the generator battery jumper to the engine.
  68. Install the intake manifold. Refer to Intake Manifold Replacement 
    69. Fig 22: Oil Pan Skid Plate And Bolts
    GM1698083Courtesy of GENERAL MOTORS COMPANY
  69. Install the oil pan skid plate and bolts, if equipped.

    Tighten 

    Tighten the bolts to 28 N.m (21 lb ft).

    70. Fig 23: Engine Shield And Bolts
    GM1696602Courtesy of GENERAL MOTORS COMPANY
  70. Install the engine shield and bolts.

    Tighten 

    Tighten the bolts to 20 N.m (15 lb ft).

  71. Lower the vehicle.
  72. Install the air conditioning condenser. Refer to Air Conditioning Condenser Replacement (L96) .
  73. Install the front end upper tie bar support. Refer to Front End Upper Tie Bar Support Replacement .
  74. Remove the hood from the service position. Refer to Hood Service Positioning .
  75. Prelube the engine. Refer to Engine Prelubing .
  76. Perform the CKP system variation learn procedure. Refer to Crankshaft Position Variation Learn .
    NOTE:

    After an overhaul the engine should be tested. Use the following procedure after the engine is installed in the vehicle.

    1. Disable the ignition system.
    2. Crank the engine several times. Listen for any unusual noises or evidence that parts are binding.
    3. Enable the ignition system.
    4. Start the engine and listen for unusual noises.
    5. Check the vehicle oil pressure gauge or light and confirm that the engine has acceptable oil pressure.
    6. Run the engine speed at about 1, 000 RPM until the engine has reached normal operating temperature.
    7. Listen for sticking lifters or other unusual noises.
    8. Inspect for fuel, oil and/or coolant leaks while the engine is running.
    9. Perform a final inspection for the proper oil and coolant levels.
  77. Close the hood.
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