GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 42640 Steering Column Anti-Rotation Pin

Removal Procedure


    Object Number: 333146  Size: SH

    Notice: The wheels of the vehicle must be straight ahead and the steering column in the LOCK position before disconnecting the steering column or intermediate shaft from the steering gear. Failure to do so will cause the SIR coil assembly to become uncentered, which may cause damage to the coil assembly.

  1. Lock the steering column by installing J 42640 into the underside of the steering column.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  3. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 3.5L.

  4. Object Number: 772540  Size: SH
  5. Use a large flat-bladed tool in order to remove the range selector cable from the range selector lever.
  6. Remove the range selector cable with bracket from the transmission case and set aside.

  7. Object Number: 650766  Size: SH
  8. Remove nut (5) and bolt (2) from the AIR pipe.

  9. Object Number: 678816  Size: SH
  10. Remove bolt (3) from the AIR pipe (2).
  11. Remove the ground cable bolt (1) from the transaxle.

  12. Object Number: 678825  Size: SH
  13. Disconnect the transaxle electrical connector C100 (2).
  14. Remove the wiring harness (3) from the wiring harness retainer (1) on the transaxle.
  15. Install the engine support fixture. Refer to Engine Support Fixture in Engine Mechanical - 3.5L.

  16. Object Number: 160965  Size: SH
  17. Remove the upper engine to transaxle case bolts (2-5).
  18. Raise and Support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  19. Remove the front tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.

  20. Object Number: 638416  Size: SH
  21. Remove both of the inner wheelhouse extensions. Refer to Wheelhouse Extension Replacement in Body Front End.
  22. Remove the front air deflector. Refer to Front Air Deflector Replacement in Body Front End.

  23. Object Number: 105357  Size: SH

    Caution: Failure to disconnect the intermediate shaft from the rack and pinion steering gear stub shaft can result in damage to the steering gear or to the intermediate shaft. This damage may cause loss of steering control, which could result in an accident and possible personal injury.

  24. Remove the intermediate shaft lower pinch bolt.
  25. Disconnect the intermediate shaft from the power steering gear.
  26. Remove the power steering gear heat shield. Refer to Steering Gear Heat Shield Replacement in Power Steering System.

  27. Object Number: 337379  Size: SH
  28. Remove the power steering gear mounting bolts.
  29. Remove the power steering line retainers from the frame.
  30. Secure the power steering gear to the exhaust manifold.

  31. Object Number: 458866  Size: SH
  32. Loosen the two mounting nuts (2) in order to allow removal of the brake pressure modulator valve (1) from the bracket (3).
  33. Remove the brake line retainers from the frame.

  34. Object Number: 154972  Size: SH
  35. Remove the left transaxle mount. Refer to Transmission Mount Replacement - Left Side .
  36. Remove the frame. Refer to Frame Replacement in Frame and Underbody.
  37. Remove the right and left drive axles from the transaxle. Refer to Wheel Drive Shaft Replacement in Wheel Drive Shafts.
  38. Disconnect the transmission oil cooler hoses from the transaxle. Refer to Transmission Fluid Cooler Hose/Pipe Replacement .
  39. Remove the transaxle fluid filler tube. Refer to .
  40. Remove the torque converter cover. Refer to Torque Converter Cover Replacement .

  41. Object Number: 166594  Size: SH
  42. Mark the flywheel to converter relationship to ensure proper reassembly. Remove the flywheel to torque converter bolts.

  43. Object Number: 767120  Size: SH
  44. Support transaxle using an appropriate transaxle jack.
  45. Disconnect vehicle speed sensor electrical connector.

  46. Object Number: 289514  Size: SH
  47. Remove the transaxle brace to transaxle bolts.
  48. Remove the transaxle brace to engine bolts.
  49. Remove the transaxle brace.

  50. Object Number: 160965  Size: SH
  51. Remove the engine to transaxle case bolt (6) which is accessible through right wheel opening.
  52. Remove the remaining transaxle to engine bolt (1).
  53. Remove the transaxle from vehicle using an appropriate transaxle jack.

  54. Object Number: 667200  Size: SH
  55. Remove the rear transaxle bracket (1) from the transaxle.

  56. Object Number: 667205  Size: SH
  57. Remove the left transaxle bracket (1) from the transaxle.
  58. Flush the transmission cooler and lines. Refer to Transmission Fluid Cooler Flushing and Flow Test .

Installation Procedure


    Object Number: 667205  Size: SH
  1. Install the left transaxle bracket (1) to the transaxle.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the left transaxle bracket bolts.
  4. Tighten
    Tighten the left transaxle bracket bolts to 110 N·m (81 lb ft).


    Object Number: 667200  Size: SH
  5. Install the rear transaxle bracket (1) to the transaxle.
  6. Install the rear transaxle bracket bolts.
  7. Tighten
    Tighten the rear transaxle bracket bolts to 63 N·m (46 lb ft).


    Object Number: 160965  Size: SH
  8. Install the transaxle into the vehicle and align the engine alignment dowels (1 and 5).
  9. Install the transaxle case to engine bolts (1 and 6).
  10. Tighten
    Tighten the lower transaxle bolts to 75 N·m (55 lb ft).


    Object Number: 289514  Size: SH
  11. Install the transaxle brace.
  12. Install the transaxle brace to engine bolts.
  13. Tighten
    Tighten the transaxle brace to engine bolts to 65 N·m (48 lb ft).

  14. Install the transaxle brace to transaxle bolts.
  15. Tighten
    Tighten the transaxle brace to transaxle bolts to 36 N·m (26 lb ft).

  16. Connect vehicle speed sensor electrical connector.
  17. Remove the transaxle jack.

  18. Object Number: 166594  Size: SH

    Important: 

       • Align the mark made on the torque converter with the mark made on the flywheel made in the disassembly unless installing a new converter.
       • Tighten all the torque converter to flywheel bolts twice.

  19. Install the flywheel to torque converter bolts.
  20. Tighten
    Tighten the flywheel to torque converter bolts to 63 N·m (47 lb ft).

  21. Install the torque converter cover. Refer to Torque Converter Cover Replacement .
  22. Install the transaxle fluid filler tube. Refer to .
  23. Connect the transmission oil cooler hoses to the transaxle. Refer to Transmission Fluid Cooler Hose/Pipe Replacement .
  24. Important: Use care when installing the right side drive axle into the transaxle case. The splined shaft of the drive axle can easily cut or distort the seal.

  25. Install the left and the right drive axle into the transaxle. Refer to Wheel Drive Shaft Replacement in Wheel Drive Shafts.
  26. Install the frame. Refer to Frame Replacement in Frame and Underbody.

  27. Object Number: 154972  Size: SH
  28. Install the left transaxle mount. Refer to Transmission Mount Replacement - Left Side .

  29. Object Number: 458866  Size: SH
  30. Position the brake pressure modulator valve (1) into the bracket (3).
  31. Tighten
    Tighten the two nuts (2) to 10 N·m (89 lb in).

  32. Install the brake line retainers onto the frame.

  33. Object Number: 337379  Size: SH
  34. Install the power steering gear mounting bolts.
  35. Tighten
    Tighten the bolts to 70 N·m (95 lb ft).

  36. Install the power steering line retainers onto the frame.
  37. Install the power steering gear heat shield. Refer to Steering Gear Heat Shield Replacement in Power Steering System.

  38. Object Number: 105357  Size: SH

    Caution: When installing the intermediate shaft make sure that the shaft is seated prior to pinch bolt installation. If the pinch bolt is inserted into the coupling before shaft installation, the two mating shafts may disengage. Disengagement of the two mating shafts will cause loss of steering control which could result in personal injury.

  39. Connect the intermediate shaft to the power steering gear.
  40. Install the intermediate shaft lower pinch bolt.
  41. Tighten
    Tighten the bolt to 45 N·m (33 lb ft).


    Object Number: 638416  Size: SH
  42. Install both of the inner wheelhouse extensions. Refer to Wheelhouse Extension Replacement in Body Front End.
  43. Install the front air deflector. Refer to Front Air Deflector Replacement in Body Front End.
  44. Install the front tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  45. Lower the vehicle.

  46. Object Number: 160965  Size: SH
  47. Install the upper transaxle case to engine bolts (2-5).
  48. Tighten
    Tighten the transaxle bolts to 75 N·m (55 lb ft).

  49. Remove the engine support fixture.

  50. Object Number: 772540  Size: SH
  51. Install the range selector cable bracket and cable.
  52. Tighten
    Tighten the range selector cable bracket nuts to 25 N·m (18 lb ft).

  53. Install the range selector cable onto the range selector lever.
  54. Check adjustment of the range selector cable. Re-adjust as needed. Refer to Range Selector Lever Cable Adjustment .

  55. Object Number: 678825  Size: SH
  56. Connect the transaxle electrical connector C100 (2).
  57. Install the wiring harness (3) into the wiring harness retainer (1) on the transaxle.

  58. Object Number: 678816  Size: SH
  59. Install ground cable and bolt (1) to transaxle.
  60. Tighten
    Tighten the ground cable bolt to 17 N·m (13 lb ft).

  61. Install bolt (3) to AIR pipe (2).
  62. Tighten
    Tighten bolt (3) to 23 N·m (17 lb ft).


    Object Number: 650766  Size: SH
  63. Install nut (5) and bolt (2) to AIR pipe.
  64. Tighten
    Tighten nut (5) and bolt (2) to 23 N·m (17 lb ft).

  65. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement in Engine Controls - 3.5L.
  66. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.

  67. Object Number: 333146  Size: SH
  68. Remove the J 42640 from the steering column.
  69. Fill the transaxle to the proper level. Refer to Fluid Capacity Specifications .
  70. Inspect the transaxle fluid level. Refer to Transmission Fluid Check .
  71. Inspect for fluid leaks.
  72. Important: It is recommended that transmission adaptive pressure (TAP) information be reset.

    Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.

  73. Reset the TAP values. Refer to Adapt Function .
  74. Check the front end alignment.
  75. Road test the vehicle and check for transaxle leaks.