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Home >> Cadillac >> 2004 >> CTS Base, 3.6 7 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Mechanical - 3.2L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Engine Replacement (M35) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Install the J 39456  to the engine lift brackets and attach to the engine lift devise. See Special Tools and Equipment .
    2. Fig 1: Removing & Installing Transmission Mounting Bolts
    GM801333Courtesy of GENERAL MOTORS CORP.
  2. With the aid of an assistant complete the following:
    1. Place the transmission into gear.
    2. Position the transmission to the engine.
    3. Rotate the output flange in order to align the transmission input shaft with the pressure plate.
    4. Align the engine dowels (1) with the transmission.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the transmission mounting bolts (2-4).

    Tighten: 

    • Tighten the M12 transmission mounting bolts (2,3) to 75 N.m (55 lb ft).
    • Tighten the M10 transmission mounting bolts (4) to 50 N.m (37 lb ft).

    4. Fig 2: Removing & Installing Transmission Mounting Bolts
    GM801334Courtesy of GENERAL MOTORS CORP.
  4. Install the remaining transmission mounting bolts (1,2 and 4).

    Tighten:  Tighten the M12 transmission mounting bolts to 75 N.m (55 lb ft).

    5. Fig 3: Identifying Engine Wiring Harness Retaining Clips
    GM785771Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Route the engine wiring harness as noted during removal.
  5. Position the engine wiring harness to the engine.
  6. Connect the engine wiring harness retaining clips (1) to the transmission mounting bolts.
  7. Connect the engine wiring harness retainers.
  8. Connect the engine wiring harness connectors to the electrical components.
    9. Fig 4: View Of Left Engine Mount Bracket Retaining Bolts
    GM785355Courtesy of GENERAL MOTORS CORP.
  9. Install the left engine mount bracket and retaining bolts.

    Tighten:  Tighten the engine mount bracket bolts to 60 N.m (44 lb ft).

    10. Fig 5: View Of Right Engine Mount Bracket Mounting Bolts
    GM816392Courtesy of GENERAL MOTORS CORP.
  10. Install the right engine mount bracket and retaining bolts.

    Tighten:  Tighten the engine mount bracket bolts to 60N.m (44 lb ft).

    11. Fig 6: Removing & Installing Bolt Securing Engine Wiring Harness Retainer To Oil Pan
    GM785772Courtesy of GENERAL MOTORS CORP.
  11. Install the bolt securing the engine wiring harness retainer to the oil pan.

    Tighten:  Tighten the engine wiring harness retainer to oil pan bolt to 50 N.m (37 lb ft).

    12. Fig 7: Identifying Bolts Securing Engine Wiring Harness Ground Leads To Left Cylinder Head
    GM785762Courtesy of GENERAL MOTORS CORP.
  12. Install the 2 bolts (2-4) securing the engine wiring harness ground leads (1-3) to the left cylinder head.

    Tighten: 

    • Tighten the engine ground lead to left cylinder head bolt (2) to 30 N.m (22 lb ft).
    • Tighten the coil ground to left cylinder head bolt (4) to 50 N.m (37 lb ft).

    13. IMPORTANT: The following are on-vehicle procedures, use only the portion of the procedure needed for installation of the component.
  13. Install the following components if previously removed:
    14. Fig 8: Identifying Engine Lift Devise
    GM861151Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Ensure clearance is maintained between the engine/transmission assembly and the following:
    • The A/C compressor
    • The A/C hoses
    • The brake pipes at the BPMV
    • The coolant bypass valve
    • The electric cooling fans
    • The engine wiring electrical harness
    • The fuel hoses
    • The power steering pump
    • The radiator
    • The remote power steering fluid reservoir
    • The vehicles tunnel
  14. Alternate between the following in order to install the engine/transmission assembly into the engine compartment:
    • Carefully lower the engine/transmission assembly using the engine lift devise.
    • Position a lift jack under the rear of the transmission in order to aid in aligning the engine mount brackets with the engine mounts.
  15. Remove the J 39456  from the engine lift brackets. See Special Tools and Equipment .
    16. Fig 9: Removing & Installing Transmission Support
    GM785386Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: This will support the transmission while the vehicle is raised.
  16. Install the transmission support to the vehicle.
    17. Fig 10: Removing & Installing Transmission Support Mounting Bolts
    GM785394Courtesy of GENERAL MOTORS CORP.
  17. Install the outer transmission support mounting bolts. Do not tighten.
  18. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  19. Position a screw jack under the rear of the transmission.
  20. Remove the outer transmission support mounting bolts.
  21. Lower the screw jack only enough to install the shift control pins.
    22. Fig 11: Identifying Shift Control Pins
    GM834520Courtesy of GENERAL MOTORS CORP.
  22. Connect the shift control rod (2) to the transmission and install the retaining pin (3).
  23. Connect the shift reaction arm (4) to the transmission and install the retaining pin (5).
  24. Install the shift control pin retaining clips (1).
  25. Raise the screw jack fully into position.
  26. Install the transmission support. Refer to Transmission Support Replacement in Frame and Underbody.
  27. Remove the screw jack from under the vehicle.
  28. Remove the mechanics wire securing the front propeller shaft to the shift reaction arm.
    29. Fig 12: Identifying Propeller Shaft Coupler
    GM803962Courtesy of GENERAL MOTORS CORP.
  29. Install the propeller shaft coupler (1) to the transmission flange. Refer to Propeller Shaft Replacement (Automatic Transmission) or Propeller Shaft Replacement (Manual Transmission) or Propeller Shaft Replacement (CTS-V) in Driveline/Axle.
    30. Fig 13: Identifying Clutch Retaining Hose Retaining Clip & Clutch Hydraulic Hose
    GM802767Courtesy of GENERAL MOTORS CORP.
  30. Install the clutch hydraulic hose retaining clip (1) to the clutch slave cylinder.
    31. IMPORTANT: Ensure the clutch hydraulic hose is routed in an upward direction above the clutch slave cylinder with no sharp bends, kinks, or downward loops, and does not come in contact with any sharp edges or potentially hot surfaces.
  31. Install the clutch hydraulic hose to the vehicle.
  32. Align the clutch hydraulic hose locating tab with the notch in the slave cylinder hose fitting.
  33. Push the clutch hydraulic hose (2) into the clutch slave cylinder until a "click" is heard.
  34. Tug gently on the clutch hydraulic hose (2) to ensure proper retention to the clutch slave cylinder.
    35. Fig 14: Locating Upper Engine Mount Retaining Nut
    GM785353Courtesy of GENERAL MOTORS CORP.
  35. Install the left engine mount upper retaining nut.

    Tighten:  Tighten the engine mount nut to 80 N.m (59 lb ft).

    36. Fig 15: View Of Right Engine Mount Upper Retaining Nut
    GM816388Courtesy of GENERAL MOTORS CORP.
  36. Install the right engine mount upper retaining nut.

    Tighten:  Tighten the engine mount nut to 80 N.m (59 lb ft).

  37. Install the oil filter adapter. Refer to Oil Filter Adapter Replacement .
    38. Fig 16: Identifying Variable Effort Steering Electrical Connector & ABS Wiring Harness Retainers
    GM818791Courtesy of GENERAL MOTORS CORP.
  38. Secure the ABS wiring harness retainers (2) to the engine frame.
  39. If equipped, connect the variable effort steering electrical connector (1) to the power steering gear pigtail.
    40. Fig 17: Identifying ABS Wiring Harness
    GM802031Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Route the ABS wiring harness as noted during removal.
  40. Secure the ABS wiring harness retainers to the following:
    • The lower control arms
    • The electric cooling fan
    41. Fig 18: Identifying ABS Wiring Harness Electrical Connector At Left & Right Wheel Speed Sensors
    GM750896Courtesy of GENERAL MOTORS CORP.
  41. Connect the ABS wiring harness electrical connectors to the left and right wheel speed sensors.
    42. Fig 19: Identifying EBCM Electrical Connector, EBCM Connector Tab, EBCM, EBCM Connector Position Assurance Retainer
    GM772830Courtesy of GENERAL MOTORS CORP.
  42. Connect the EBCM electrical connector (1) to the EBCM (3).
  43. Rotate the EBCM connector tab (2) down into the locked position.
  44. Install the EBCM connector position assurance retainer (4) to the EBCM electrical connector (1).
  45. If equipped, connect the electrical connector to the brake fluid pressure sensor.
  46. Install the catalytic converter hanger bracket. Refer to Catalytic Converter Hanger Bracket Replacement in Engine Exhaust.
  47. Install the left and right catalytic converters. Refer to Catalytic Converter Replacement - Left (LA3, LY9) and Catalytic Converter Replacement - Right (LA3, LY9) in Engine Exhaust.
  48. Install the exhaust system. Refer to Exhaust System Replacement (LA3, LY9) in Engine Exhaust.
  49. Lower the vehicle.
    50. Fig 20: Locating A/C Compressor Electrical Connector
    GM785773Courtesy of GENERAL MOTORS CORP.
  50. Position the A/C compressor to the accessory mounting bracket.
  51. Install the A/C compressor mounting bolts.

    Tighten:  Tighten the A/C compressor mounting bolts to 20 N.m (15 lb ft).

  52. Connect the electrical connector to the A/C compressor.
    53. Fig 21: Locating Remote Power Steering Fluid Reservoir Mounting Bolts
    GM785730Courtesy of GENERAL MOTORS CORP.
  53. Install the remote power steering fluid reservoir mounting bolts (1,3).

    Tighten: 

    • Tighten the remote power steering fluid reservoir to intake plenum mounting bolts (1) to 9 N.m (80 lb in).
    • Tighten the remote power steering fluid reservoir to cylinder head mounting bolt (3) to 25 N.m (18 lb ft).

    54. Fig 22: Identifying Engine Wiring Harness & Remote Power Steering Fluid Reservoir
    GM785764Courtesy of GENERAL MOTORS CORP.
  54. Connect the following to the remote power steering fluid reservoir (1):
    • The vacuum brake booster hose
    • The wiring harness (2)
  55. Connect the vacuum brake booster hose to the vacuum source.
    56. Fig 23: Locating Steering Pump Mounting Bolts
    GM785728Courtesy of GENERAL MOTORS CORP.
  56. Position the power steering pump to the accessory mounting bracket.
  57. Install the power steering pump mounting bolts.

    Tighten:  Tighten the power steering pump mounting bolts in sequence to 35 N.m (26 lb ft).

  58. Install the drive belt. Refer to Drive Belt Replacement .
    59. Fig 24: Identifying Power Steering Pressure Hose Nut & A/C Compressor Stud
    GM802720Courtesy of GENERAL MOTORS CORP.
  59. Install the power steering pressure hose retainer and nut to the A/C compressor stud.

    Tighten:  Tighten the power steering hose retaining nut to 8 N.m (71 lb in).

    60. Fig 25: View Of Engine Wiring Harness-To-A/C Pressure Hose Retainer
    GM785766Courtesy of GENERAL MOTORS CORP.
  60. Connect the retainer (1) securing the engine wiring harness to the A/C pressure hose.
    61. Fig 26: Identifying Power Steering Return Hose Nut & A/C Compressor Stud
    GM803176Courtesy of GENERAL MOTORS CORP.
  61. Install the power steering return hose retainer and nut to the A/C compressor stud.

    Tighten:  Tighten the power steering hose retaining nut to 8 N.m (71 lb in).

    62. Fig 27: Identifying A/C Refrigerant Pressure Sensor & Electrical Connector
    GM785777Courtesy of GENERAL MOTORS CORP.
  62. Connect the electrical connector (1) to the A/C refrigerant pressure switch (2).
  63. Connect the 2 engine wiring harness connectors to the left body rail connectors.
  64. Position the J 38185  to the clamp in order to connect the surge tank outlet hose to the surge tank. See Special Tools and Equipment .
    65. Fig 28: Identifying Inlet Heater Hose
    GM760782Courtesy of GENERAL MOTORS CORP.
  65. Position the J 38185  to the clamp (1) in order to connect the inlet heater hose to the heater core. See Special Tools and Equipment .
    66. Fig 29: Identifying Hose Clamp & Afterboil Coolant Pump
    GM789004Courtesy of GENERAL MOTORS CORP.
  66. Position the J 38185  to the clamp (1) in order to connect the outlet heater hose to the afterboil coolant pump (2). See Special Tools and Equipment .
    67. Fig 30: Locating Fuel Rail Quick Connect Fittings
    GM785815Courtesy of GENERAL MOTORS CORP.
  67. Insert the chassis hose/pipes into the retainer (4) located at the ECM bracket.
  68. Close the retainer (4).
  69. Connect the EVAP quick connect fitting (3). Refer to Quick Connect Fitting(s) Service (Plastic Collar) .
  70. Refer to Quick Connect Fitting(s) Service (Metal Collar) in order to connect the following quick connect fittings to the fuel rail:
    • The feed hose/pipe (2)
    • The return hose/pipe (1)
    71. Fig 31: Identifying Coolant Bypass Inlet Hose To Afterboil Coolant Pump Pipe Hose Clamp
    GM756131Courtesy of GENERAL MOTORS CORP.
  71. Position the J 38185  to the clamp (1) in order to connect the coolant bypass inlet hose to the afterboil coolant pump pipe. See Special Tools and Equipment .
    72. Fig 32: Identifying Coolant Bypass Outlet Hose To Coolant Inlet Pipe Hose Clamps
    GM789008Courtesy of GENERAL MOTORS CORP.
  72. Position the J 38185  to the clamp (2) in order to connect the coolant bypass outlet hose to the coolant inlet pipe. See Special Tools and Equipment .
    73. Fig 33: Identifying Surge Tank Inlet Hose
    GM785753Courtesy of GENERAL MOTORS CORP.
  73. Position the J 38185  to the clamps in order to connect the surge tank inlet hose to the following:
    • The radiator
    • The throttle body assembly
  74. Install the outlet radiator hose. Refer to Radiator Hose Replacement - Outlet (LA3, LY9) in Engine Cooling.
  75. Install the inlet radiator hose. Refer to Radiator Hose Replacement - Inlet (LA3, LY9) in Engine Cooling.
  76. Fill the cooling system. Refer to Draining and Filling Cooling System (LA3, LY9) in Engine Cooling.
    77. Fig 34: Identifying Engine Wiring Harness Connector
    GM756128Courtesy of GENERAL MOTORS CORP.
  77. Connect the engine wiring harness connector (1) to the coolant bypass solenoid.
    78. Fig 35: Identifying Engine Wiring Harness
    GM785776Courtesy of GENERAL MOTORS CORP.
  78. Install the bolt securing the engine wiring harness ground lead to the right body rail.

    Tighten:  Tighten the engine wiring harness ground lead bolt to 9 N.m (80 lb in).

  79. Connect the engine wiring harness connector at the right shock tower.
  80. Install the intake air resonator. Refer to Intake Air Resonator Replacement in Engine Controls-2.6L and 3.2L.
  81. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls-2.6L and 3.2L.
    82. Fig 36: Identifying Battery Positive Cable To Underhood Fuse Block
    GM772415Courtesy of GENERAL MOTORS CORP.
  82. Install the nut (1) securing the battery positive cable (2) to the underhood fuse block.

    Tighten:  Tighten the battery positive cable to underhood fuse block nut to 15 N.m (11 lb ft).

  83. Connect the battery positive cable to the battery.

    Tighten:  Tighten the battery cable to 17 N.m (13 lb ft).

  84. Connect the engine wiring harness electrical connector to the underhood fuse block.
    85. Fig 37: View Of Underhood Fuse Box
    GM785724Courtesy of GENERAL MOTORS CORP.
  85. Install the underhood fuse block cover to the underhood fuse block.
    86. Fig 38: View Of Battery Area Mounts And Connectors
    GM772418Courtesy of GENERAL MOTORS CORP.
  86. Install the bolt (1) securing the battery negative cable to the side rail.

    Tighten:  Tighten the battery negative cable to side rail bolt to 36 N.m (27 lb ft).

  87. Connect the body harness connector (3) to the battery negative cable.
  88. Connect the battery negative cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  89. Position the front air inlet panel to the battery tray and cowl.
  90. Install the fasteners securing the front air inlet panel to the battery tray and cowl.

    Tighten:  Tighten the front air inlet panel assembly fasteners to 6 N.m (53 lb in).

  91. Install the wiper motor module. Refer to Wiper Motor Module Replacement (LHD) or Wiper Motor Module Replacement (RHD) in Wipers/Washer Systems.
  92. Install the hood. Refer to Hood Replacement in Body Front End.
  93. Fill the engine oil. Refer to Engine Oil and Oil Filter Replacement .
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