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Home >> Cadillac >> 2005 >> STS 3.6 7 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Automatic Transmission - 5L40-E/5L50-E - Introduction & Repair Instructions) >> Repair Instructions >> Transmission Replacement (w/RPO LH2) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    IMPORTANT: Ensure clearance is maintained between the transmission and the following:
    • The starter drive nose cone
    • The catalytic converters
    • The oxygen sensors
    • The wiring harnesses
    • The cooler pipes
  1. Using the transmission jack, carefully raise the transmission to meet the engine.
    2. Fig 1: Locating Engine Dowels
    GM830362Courtesy of GENERAL MOTORS CORP.
  2. Align the transmission with the engine dowels (1).
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the lower 8 transmission mounting bolts.

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

  4. Remove the support stand from under the engine oil pan.
    5. Fig 2: View Of Upper Transmission Mounting Bolts
    GM830361Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Be careful to NOT allow the front differential drive pinion flange, if equipped, to come in contract with power steering rack while lowering the transmission.
  5. Using the transmission jack. Lower the engine and transmission assembly only enough to gain access to the upper transmission bolt locations.
  6. Install the upper transmission mounting bolts.

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

  7. Position the engine wiring harness to the original location.
  8. Install the transfer case if equipped. Refer to Transfer Case Assembly Replacement in Transfer Case - BW 4476.
  9. Align the torque converter to flexplate/flywheel orientation marks made during the removal procedure.
    10. Fig 3: View Of Torque Converter Bolt
    GM830374Courtesy 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.
  10. Complete the following steps for all 3 torque converter bolts:
    1. Rotate the harmonic balancer center bolt or the fan adapter, depending on the application, 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 3 NEW torque converter bolts before fully tightening.

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

    11. Fig 4: View Of Torque Converter Bolt Close Out Cover
    GM830376Courtesy of GENERAL MOTORS CORP.
  11. Install the torque converter bolt close out cover to the engine block.
  12. Push the torque converter bolt close out cover upper retaining pin upward locking it into the engine block.
    13. Fig 5: View Of Transmission Close Out Plug
    GM830367Courtesy of GENERAL MOTORS CORP.
  13. Install the transmission close out plug.
    14. Fig 6: View Of Transmission Fluid Cooler Pipes
    GM785867Courtesy of GENERAL MOTORS CORP.
  14. Place NEW O-rings over the transmission fluid cooler pipes.
  15. Install the transmission fluid cooler pipes to the transmission. Refer to Transmission Fluid Cooler Pipe Replacement - Rear (w/RWD)  or Transmission Fluid Cooler Pipe Replacement - Rear (w/AWD) .
  16. Clip the transmission fluid cooler lines into the plastic cooler line retainer bracket.
    17. Fig 7: View Of Front Differential Heat Shield & Bracket
    GM830373Courtesy of GENERAL MOTORS CORP.
  17. Install the front differential heat shield and bracket. Refer to Shield Replacement in Front Drive Axle.
  18. Install the front air deflector. Refer to Air Deflector Replacement - Front in Body Front End.
    19. Fig 8: View Of Transmission Wiring Harness Connector
    GM830395Courtesy of GENERAL MOTORS CORP.
  19. Connect the wiring harness retainers to the transmission.
  20. Connect the transmission wiring harness connector (1) to the transmission by rotating the locking latch clockwise.
    21. Fig 9: View Of Shift Control Linkage
    GM830371Courtesy of GENERAL MOTORS CORP.
  21. Connect the shift linkage to the transmission. Refer to Shift Control Linkage Replacement (RWD)  or Shift Control Linkage Replacement (AWD) .
  22. Install the rear propeller shaft. Refer to Propeller Shaft Replacement - Rear (AWD) or Propeller Shaft Replacement - Rear (RWD) in Propeller Shaft.
  23. Install the exhaust system. Refer to Exhaust System Replacement in Engine Exhaust.
  24. Check the transmission fluid level and fill if necessary. Refer to Transmission Fluid Checking Procedure .
  25. Adjust the shift control linkage. Refer to Shift Control Linkage Adjustment .
  26. Lower the vehicle.
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