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Home >> Cadillac >> 2007 >> Escalade ESV >> Repair and Diagnosis >> External Pages >> Different car >> Section 1152 (Automatic Transmission - 6L50/6L80/6L90 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Repair Instructions - On Vehicle >> Transmission Replacement (Rear Wheel Drive) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: Ensure clearance is maintained between the transmission and the following:
    • The wiring harness
    • The vent tube
    • The cooler pipes
  1. Using the transmission jack, carefully raise the transmission to the engine.
    2. Fig 1: Identifying Transmission Mounting Bolts
    GM1644591Courtesy of GENERAL MOTORS CORP.
  2. Align the transmission with the engine dowels.
  3. Install the transmission mounting bolts.
    NOTE: Refer to Fastener Notice .

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

    4. Fig 2: Engine Wiring Harness
    GM1979766Courtesy of GENERAL MOTORS CORP.
  4. Position the engine wiring harness (1) to the original location.
  5. Install the wiring harness retainers (2) to the transmission.
    6. Fig 3: Identifying Transmission Vent Hose
    GM1983368Courtesy of GENERAL MOTORS CORP.
  6. Connect the transmission vent hose (4) to the transmission vent pipe (1).
  7. Raise the transmission to the installed position.
  8. Install the transmission support. Refer to Transmission Support Replacement (Manual Transmission) or Transmission Support Replacement (Automatic Transmission) .
  9. Remove the jack from under the transmission.
  10. Align the torque converter to flexplate/flywheel orientation marks made during the removal procedure.
    11. Fig 4: Identifying Torque Converter Bolts
    GM1979764Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Torque converter bolts are self locking and must be replaced with NEW torque converter bolts every time the bolts are removed.
  11. Complete the following steps for all torque converter bolts (1):
    1. Rotate the harmonic balancer center bolt clockwise ONLY, in order to align the torque converter bolt holes in the flexplate/flywheel with the access hole in the engine block.
    2. To aid in alignment of the torque converter to the flexplate/flywheel. Install all NEW torque converter bolts before fully tightening.

      Tighten:  Tighten the bolts to 63 N.m (46 lb ft).

  12. Remove the starter motor. Refer to Starter Motor Replacement (LY7) .
    13. Fig 5: Transmission Close Out Plug
    GM1983699Courtesy of GENERAL MOTORS CORP.
  13. Install the transmission close out plug (1).
    14. Fig 6: View of Transmission Fluid Cooler Pipes
    GM1979765Courtesy of GENERAL MOTORS CORP.
  14. Place NEW O-rings over the transmission fluid cooler pipes.
  15. Install the transmission fluid cooler pipes (1) to the transmission. Refer to Transmission Fluid Cooler Pipe Replacement - Rear .
    16. Fig 7: View Of Oxygen Sensor Wiring Harness Connector, Retainers
    GM1979767Courtesy of GENERAL MOTORS CORP.
  16. Install the oxygen sensor wiring harness connector (2) from the transmission.
  17. Install the wiring harness retainers (1) to the transmission.
  18. Connect the transmission wiring harness connector (5) to the transmission by rotating the locking latch clockwise.
    19. Fig 8: View Of Oxygen Sensor Wiring Harness Connector, Retainers
    GM1983368Courtesy of GENERAL MOTORS CORP.
  19. Install the transmission vent hose to the retaining clips (6) on the transmission support.
    20. Fig 9: View Of Manual Shift Shaft Nut
    GM1841192Courtesy of GENERAL MOTORS CORP.
  20. Install the shift linkage to the transmission.
  21. Install the transmission manual shift shaft nut.

    Tighten:  Tighten the nut to 15 N.m (11 lb ft).

  22. Install the propeller shaft. Refer to Rear Propeller Shaft Replacement (RWD) or Rear Propeller Shaft Replacement (AWD) .
  23. Install the catalytic converters. Refer to Catalytic Converter Replacement - Left Side and Catalytic Converter Replacement - Right Side .
  24. Install the exhaust system. Refer to Exhaust System Replacement (With LY7 and LLT) or Exhaust System Replacement (With LP1) .
  25. Lower the vehicle.
  26. Check the transmission fluid level and fill if necessary. Refer to Transmission Fluid Check .
  27. Adjust the shift control linkage. Refer to Shift Control Linkage Adjustment (All Wheel Drive)  or Shift Control Linkage Adjustment (Rear Wheel Drive) .
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