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Installation Procedure

  1. GM5838643Courtesy of GENERAL MOTORS COMPANY

    Power Steering Assist Motor Seal (1) @ Power Steering Assist Motor - Install NEW

  2. Power Steering Assist Motor (2) - Install
  3. GM5838637Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Fastener Caution .

    Steering Gear Bolt (1) - Install NEW and tighten [4x] - Fastener Specifications 

  4. GM5838642Courtesy of GENERAL MOTORS COMPANY

    Connect the electrical connectors. (1)

  5. Using a digital scale, weigh the NEW electric belt drive rack and pinion steering gear belt. Record the weight and use the chart to determine the tension of the electric belt drive rack and pinion steering gear belt. Refer to the Belt Tension Table  for proper belt tension specification. Belt Tension Specification 
  6. GM5838641Courtesy of GENERAL MOTORS COMPANY

    Electric Belt Drive Rack and Pinion Steering Gear Belt (1) - Install NEW

  7. GM5868077Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    With the steering linkage inner tie rods removed, there is no stop on the end of the steering rack travel.

    Install an appropriate tool (1) on the input shaft (2) and rotate the input shaft as close to end to end travel as possible 3 times to manually break in the electric belt drive rack and pinion steering gear belt.

  8. Ensure the electric belt drive rack and pinion steering gear rotates freely.
  9. GM5872004Courtesy of GENERAL MOTORS COMPANY

    Move the steering rack to centered position. The center position can be found by taking a measurement of the distance (a) from the end of the steering gear housing to the end of the steering gear rack (1). This measurement should be 61.1 mm (2.4 in).

  10. GM5868103Courtesy of GENERAL MOTORS COMPANY

    To adjust the belt tension, loosen the steering gear idler pulley (4) and use the tool installed to adjust the belt tension as necessary. Tighten the steering gear idler pulley (4) when taking measurements.

  11. Install the CH-53104  Steering Gear Idler Pulley Holder (2).
  12. Install and tighten the 2 steering gear bolts (3) that were saved from the removal steps.
    13. NOTE:

    Install a rubber pad to the tightening surface to prevent damage to the idler pulley.

  13. Install an appropriate sized C-clamp (1) with a rubber pad on the tightening surface to tighten the steering gear idler pulley to the correct specification.
    14. NOTE:

    NEVER hold the tester by hand while taking measurements or the readings will be inaccurate.

  14. Place the body of the GE-50576-A  Acoustic Belt Tension Tester on a flat surface.
  15. GM5871794Courtesy of GENERAL MOTORS COMPANY

    Position the microphone of the GE-50576-A  Acoustic Belt Tension Tester (1) at the outboard location of the electric belt drive rack and pinion steering gear belt (2).

    16. CAUTION:

    Never use a sharp object to strum the belt as belt damage may occur. If the belt is damaged, the electric belt drive rack and pinion steering gear will need to be replaced.

    NOTE:

    Strum the electric belt drive rack and pinion steering gear belt as close as possible to the center position between the two electric belt drive rack and pinion steering gear pulleys to achieve the most accurate readings.

  16. Use an allen wrench or finger to strum the steering gear belt at the center location between the two pulleys three times to get an average belt tension reading.
    17. NOTE:

    When testing frequency, there should be a difference of 10 - 40 Hz between the inboard and outboard measurements. If you are not seeing a difference in the measurements, rotate the electric belt drive rack and pinion steering gear 90 degrees and try again.

  17. Record the average reading from the outboard frequency test.
  18. GM5871796Courtesy of GENERAL MOTORS COMPANY

    Position the microphone of the GE-50576-A  Acoustic Belt Tension Tester (1) at the inboard location of the electric belt drive rack and pinion steering gear belt (2).

  19. Use an allen wrench or finger to strum the steering gear belt at the center location between the two pulleys three times to get an average belt tension reading.
  20. Record the average reading from the inboard frequency test.
    21. NOTE:

    Increasing the belt tension increases the frequency. Reducing the belt tension reduces the frequency.

  21. Find the average of the inboard and outboard measurements and compare to the chart. If the frequency is within specification, continue. If not, repeat steps 14 - 20 until accurate frequency specification is achieved.
  22. Apply the final torque for the steering gear idler pulley before removing the tools. Fastener Specifications 
  23. Remove the C-clamp used to tighten the idler pulley.
  24. Confirm the inboard and outboard measurements are still within specification. If not, repeat steps 15 - 21 until accurate frequency specification is achieved.
  25. Remove the GE-50576-A  Acoustic Belt Tension Tester.
  26. Remove and DISCARD the 2 steering gear bolts used during the belt tension procedure.
  27. Remove the CH-53104  Steering Gear Idler Pulley Holder.
  28. GM5838634Courtesy of GENERAL MOTORS COMPANY

    Power Steering Assist Motor Seal (3) @ Steering Gear Housing Cover - Install NEW

  29. Steering Gear Housing Cover (2) - Install
  30. Steering Gear Bolt (1) - Install NEW and tighten [6x] - Fastener Specifications 
  31. GM5909910Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Steering Linkage Inner Tie Rod- Left Side and Right Side (1) - Install [2x]

  32. GM5909909Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Holding the steering gear rack bar with anything other than a non-serrated adjustable wrench will cause damage to the steering gear

    NOTE:

    Left side shown, right side similar.

    Cover the electric belt drive rack and pinion steering gear bar (2) with a clean shop towel.

  33. Hold the electric belt drive rack and pinion steering gear bar (2) with a non-serrated adjustable wrench.
    34. CAUTION:

    Refer to Component Fastener Tightening Caution .

  34. Using a universal inner tie rod wrench, tighten the left and right side steering linkage inner tie rods (1). Fastener Specifications 
  35. GM5840653Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Position a NEW left and right side steering gear boot clamp-inner (1) on the left and right side steering gear boots (2).

  36. GM5909907Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Steering Gear Boot- Left Side and Right Side (1) - Install [2x]

  37. GM5909982Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Steering Gear Boot Clamp- Inner- Left Side and Right Side (1) - Tighten [2x]- use CH-22610  Keystone Clamp Pliers (2)

  38. GM5909902Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Steering Gear Boot Clamp- Outer- Left Side and Right Side (1) - Install [2x]

  39. GM5909899Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Install the left and right side steering linkage inner tie rod nuts (2) until aligned with the previously placed matched mark on the steering linkage inner tie rod.

  40. Steering Linkage Outer Tie Rod- Left Side and Right Side (1) - Install [2x]
  41. GM5909741Courtesy of GENERAL MOTORS COMPANY

    Intermediate Steering Shaft (2) - Install

  42. Intermediate Steering Shaft Lower Bolt (1) - Install and tighten - Fastener Specifications
  43. GM5902730Courtesy of GENERAL MOTORS COMPANY

    Electric Belt Drive Rack and Pinion Steering Gear (3) - Install

  44. Steering Gear Bolt- Upper (1) - Install and tighten [2x] - Fastener Specifications 
  45. Steering Gear Bolt - Lower (2) - Install [2x]
  46. Steering Gear Nut (4) - Install [2x]
  47. Steering Gear Bolt - Lower (2) - Tighten [2x] - Fastener Specifications 
  48. GM5902729Courtesy of GENERAL MOTORS COMPANY

    Steering Linkage Outer Tie Rod Nut (1) - Install and tighten [2x] - Fastener Specifications 

  49. GM5909750Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) - Connect [4x]

  50. Retainer (2) - Engage [2x]
  51. GM5902697Courtesy of GENERAL MOTORS COMPANY

    Install the front electric drive transmission module assembly to the front cradle (1).

  52. GM5903760Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Drive Motor Mount Bolt (2) - Install NEW [2x]

  53. Drive Motor Mount Nut (1) - Install [2x]
    54. CAUTION:

    This vehicle is equipped with torque-to-yield or single use fasteners. Install a NEW torque-to-yield or single use fastener when installing this component. Failure to replace the torque-to-yield or single use fastener could cause damage to the vehicle or component.

  54. Drive Motor Mount Bolt (2) - Tighten [2x] - Fastener Specifications
  55. GM5902700Courtesy of GENERAL MOTORS COMPANY

    Drive Motor Rear Mount Bracket Bolt (1) - Install NEW and tighten [6x] - Fastener Specifications

  56. GM5903393Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Output Shaft Seal- Left Side and Right Side (2) - Install NEW [2x]

  57. Output Shaft Retaining Ring- Left Side and Right Side (1) - Install NEW [2x]
  58. GM5903392Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Front Wheel Drive Half Shaft- Left Side and Right Side (1) - Install [2x]

  59. GM5903315Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Front Wheel Drive Shaft Nut- Left Side and Right Side (1) - Install NEW and tighten [2x] - Fastener Specifications

  60. GM5893651Courtesy of GENERAL MOTORS COMPANY

    Remove the 2 engine hoist hooks (1) from the 2 transmission brackets (2).

  61. GM5902668Courtesy of GENERAL MOTORS COMPANY

    Install the battery positive and negative cable (2) to the wiring harness bracket.

  62. Battery Positive Cable Channel Nut (1) - Install and tighten [2x] - Fastener Specifications
  63. GM5902663Courtesy of GENERAL MOTORS COMPANY

    Generator Control Module Coolant Pump Bracket Bolt- Right Side (1) - Install and tighten [2x] - Fastener Specifications

  64. GM5902657Courtesy of GENERAL MOTORS COMPANY

    Generator Control Module Coolant Pump Bracket Bolt- Left Side (1) - Install and tighten [2x] - Fastener Specifications

  65. GM5902654Courtesy of GENERAL MOTORS COMPANY

    Engine Wiring Harness Bolt (3) - Install and tighten - Fastener Specifications

  66. Engine Wiring Harness Ground Bolt (2) - Install and tighten [2x] - Fastener Specifications
  67. Engine Wiring Harness Retainer (1) @ Front Cradle - Install [3x]
  68. GM5865279Courtesy of GENERAL MOTORS COMPANY

    Front Cradle (2) - Install - Front Cradle Removal and Installation

  69. Install the front tire and wheel assemblies. Tire and Wheel Removal and Installation
  70. Measure and adjust the front toe. Wheel Alignment - Steering Wheel Angle and/or Front Toe Adjustment
  71. Calibrate the power steering control module. Power Steering Control Module Calibration 
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