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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.
  6. GM6145451Courtesy 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

    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.

    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

    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

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

  37. GM5909982Courtesy of GENERAL MOTORS COMPANY

    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

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

  39. GM5909899Courtesy of GENERAL MOTORS COMPANY

    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. GM6303335Courtesy of GENERAL MOTORS COMPANY

    Intermediate Steering Shaft (2) - Install

  42. If a NEW threaded component is being installed, loosen the adhesive using a metal pick or similar tool before proceeding. If threaded component is reused, prepare the threaded component using the following steps:
    1. Remove any loose cured adhesive from the external threads of the component using a lint free cloth.
    2. Thread the cleaned component into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Remove loose debris from internal and external threads using compressed air.
    4. Apply liquid thread locking adhesive in a strip along half of the length of the external threads, starting at the tip, just prior to installation. Adhesives, Fluids, Lubricants, and Sealers
  43. Intermediate Steering Shaft Lower Bolt (1) - Install and tighten - Fastener Specifications
  44. GM6303339Courtesy of GENERAL MOTORS COMPANY

    With aid of an assistant install the electric belt drive rack and pinion steering gear (3).

  45. GM6303336Courtesy of GENERAL MOTORS COMPANY

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

  46. GM6421477Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Rear Electric Drive Transmission Module Extension Coolant Hose Bracket (2) - Install

  47. Rear Electric Drive Transmission Module Extension Coolant Hose Bracket Bolt (1) - Install and tighten - Fastener Specifications
  48. GM5867684Courtesy of GENERAL MOTORS COMPANY

    Battery Positive and Negative Cable (3) - Install

  49. Battery Cable Clip Bracket Bolt (2) - Install and tighten [4x] - Fastener Specifications
  50. GM6333998Courtesy of GENERAL MOTORS COMPANY

    Engine Wiring Harness (1) - Install

  51. Connect the electrical connectors and install the wiring harness retainers as necessary.
  52. Engine Wiring Harness Bolt (3) - Install and tighten - Fastener Specifications
  53. Engine Wiring Harness Ground Bolt (2) - Install and tighten [2x] - Fastener Specifications
  54. GM6339922Courtesy of GENERAL MOTORS COMPANY

    High Voltage Battery Coolant Pump Inlet Hose (2) - Install

  55. GM6301999Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) - Connect

  56. GM5904555Courtesy of GENERAL MOTORS COMPANY

    Front Electric Drive Transmission Module Hose (2) @ Generator Control Module Coolant Pump - Install

  57. Front Electric Drive Transmission Module Hose Retainer (1) - Engage
  58. GM6303339Courtesy of GENERAL MOTORS COMPANY

    Steering Gear Bolt - Upper (1) - Install and tighten [2x] - Fastener Specifications 

  59. Steering Gear Bolt - Lower (2) - Install [2x]
  60. Steering Gear Nut (4) - Install [2x]
  61. Steering Gear Bolt - Lower (2) - Install and tighten [2x] - Fastener Specifications 
  62. Install the front cradle assembly. Front Cradle Removal and Installation (FE2) , or Front Cradle Removal and Installation (F47)
  63. Run all necessary programming and setup procedures. Control Module References
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