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Home >> Pontiac >> 2009 >> G8 Base >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 5L40-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Transmission Replacement >> Removal Procedure

Removal Procedure

    NOTE: NEW torque converter retaining bolts will be required each time the torque converter bolts are removed.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove engine air intake ducting.
  3. Remove radiator retaining clips.
  4. Disconnect the EVAP purge pipe.
  5. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle .
  6. Remove the propeller shaft. Refer to Propeller Shaft Replacement .
  7. Remove the air deflector front (1). Refer to Front Air Deflector Replacement .
  8. Remove the splash shield.
    9. Fig 1: Identifying Shift Selector Linkage Rod To Shift Selector Shaft Retaining Nut
    GM1958702Courtesy of GENERAL MOTORS CORP.
  9. Remove the transmission manual shift shaft retaining nut (3).
  10. Disconnect the shift linkage (1) from the transmission.
    11. Fig 2: View Of Transmission Wiring Harness Connector & Locking Latch
    GM785868Courtesy of GENERAL MOTORS CORP.
  11. Disconnect the transmission wiring harness connector (1) from the transmission by rotating the locking latch (2) counterclockwise.
    12. Fig 3: View Of Wiring Harness Clips At Transmission
    GM785869Courtesy of GENERAL MOTORS CORP.
  12. Disconnect the wiring harness clips from the transmission, and position the wiring harness aside.
    13. Fig 4: Identifying Starter Motor To Cylinder Block Retaining Bolts
    GM1958089Courtesy of GENERAL MOTORS CORP.
  13. Remove the starter motor to gain access to the torque converter bolts. Refer to Starter Replacement (3.6L) or Starter Replacement (6.0L) .
  14. Mark the torque converter to flexplate/flywheel orientation to make sure proper realignment.
  15. Repeat the following steps for all 3 torque converter bolts:
    1. Rotate the harmonic balancer centre bolt clockwise ONLY, in order to align the torque converter bolt with the starter motor opening in the engine block.
    2. Remove and discard the torque converter bolt. The bolt is self locking and is NOT reusable.
  16. Using inspection hole push torque converter back towards transmission pump.
  17. Place an oil drain pan under the transmission fluid cooler pipes.
    18. Fig 5: Transmission Fluid Cooler Pipes Brace
    GM1955714Courtesy of GENERAL MOTORS CORP.
  18. Remove the bolt securing the transmission fluid cooler pipes brace to the engine.
    19. Fig 6: View Of Transmission Fluid Cooler Pipes
    GM785867Courtesy of GENERAL MOTORS CORP.
  19. Disconnect the fluid cooler pipes from the transmission.
  20. Plug the open outlet ports to prevent fluid loss and contamination.
    21. Fig 7: Identifying Engine Wiring Harness Retaining Clips
    GM785771Courtesy of GENERAL MOTORS CORP.
  21. Disconnect the engine wiring harness retaining clips (1) to the transmission mounting bolts.
  22. Disconnect the steering shaft from the steering rack.
    23. Fig 8: Engine Close Out Cover
    GM1960862Courtesy of GENERAL MOTORS CORP.
  23. Remove the engine close out cover.
    24. NOTE: The engine mounts must NOT bend or deflect from the vertical position. Damage to the mount will occur.
  24. Support the power train with a suitable jack or table.
    25. Fig 9: Identifying Bolt Till Stepped Shank
    GM1954231Courtesy of GENERAL MOTORS CORP.
  25. Remove the front sub-frame rear retaining bolts and fit bolts from special tool kit EN-48536.
  26. Install bolt till stepped shank (1) is 2 mm below sub-frame (2).
    27. Fig 10: Identifying Bolt Till Stepped Shank & Chassis Rail Flange
    GM1954233Courtesy of GENERAL MOTORS CORP.
  27. Remove the front sub-frame front retaining bolts and fit bolts from special tool kit EN-48536.
  28. Install bolt till stepped shank (1) is 2 mm below chassi rail flange (2).
    29. Fig 11: Identifying Bolt Till
    GM1954234Courtesy of GENERAL MOTORS CORP.
  29. Remove all 4 transmission mount to body retaining bolts and install 2 bolts from special tool kit in diagonal holes e.g left hand front and right hand rear.
  30. Install the bolts until 65 mm is measured between the bolt heads (1) and transmission mount (2).
  31. Remove the front sub-frame middle bolts.
  32. Lower the power train slowly until the sub-frame and transmission mount are resting on bolts.
    33. Fig 12: Identifying Spacer Blocks, Subframe & Chassis Rails
    GM1955613Courtesy of GENERAL MOTORS CORP.
  33. Insert the 65 mm spacer blocks (1) between the sub-frame (2) and chassis rails (3).
    34. CAUTION: Refer to Fastener Caution .
  34. Tension the front sub-frame front and rear bolts. Tighten the bolts to 95 N.m (70 lb ft)
  35. Install and tension the middle sub-frame bolts and tighten to 95 N.m (70 lb ft).
  36. Remove the supporting jack or table
    37. Fig 13: Identifying Tension Plate Securing Bolts
    GM1955614Courtesy of GENERAL MOTORS CORP.
  37. Install engine support plate (1) to the front sub-frame.
  38. install the engine support plate retaining bolts (2) and tighten to 10 N.m (89 lb in).
    39. Fig 14: Identifying Transmission Bolts
    GM1562780Courtesy of GENERAL MOTORS CORP.
  39. Remove the transmission retaining bolts.
  40. Pull the transmission free from the engine dowels.
    41. NOTE: Ensure clearance is maintained between the transmission and the following:
    • The catalytic converters
    • The wiring harnesses
    • The cooler pipes
    • The propeller shaft
  41. Carefully lower the transmission from the vehicle.
  42. Flush the transmission oil cooler.
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