Steering Rack (RWD) (Remove and Replace)

FRT No: 32010102

Warning: If the vehicle has air suspension, activate "Jack" mode on the touchscreen before raising and supporting the vehicle.

Removal

  1. Ensure that the front road wheels are in a straight ahead position.
  2. Lock the steering wheel in position.
  3. Remove the underhood storage unit (refer to procedure).
  4. Remove the bolt that secures the lower intermediate shaft to the steering rack (torque 49 Nm).
  5. Release the lower intermediate shaft from the steering rack.
  6. Raise and support the vehicle (refer to procedure).
  7. Remove the front road wheels (refer to procedure).
  8. Remove the front aero shield panel (refer to procedure).
  9. If the vehicle is equipped with the 2nd generation air conditioning compressor:
    1. Remove the front skid plate (refer to procedure).
    2. Working beneath the vehicle, remove the nuts (x4) that secure the compressor and bracket assembly to the front subframe (torque 10 Nm).
  10. If the vehicle is equipped with air suspension, release the blue air line from the clip at the LH side of the subframe.
  11. Mark the position of the LH tie rod end.
    Tip: An alternative to marking the position of the tie rod end is to record the number of turns required to remove it in step 16.
  12. Loosen the LH tie rod end jam nut (torque 70 Nm).
    Caution: To prevent tie rod damage, always restrain the tie rod with a wrench when loosening or tightening the jam nut.
  13. Remove the bolts (x2) that secure the LH sway bar bracket to the subframe (torque 23 Nm).
  14. Remove the LH middle subframe bolt (torque 76 Nm).
  15. Restrain the LH tie rod ball joint pin with a wrench and remove the nut that secures the tie rod end to the knuckle (torque 103 Nm).
    Caution: To prevent ball joint damage, always hold the ball joint pin with a wrench while loosening or tightening the lock nut.
  16. Release the tie rod end from the knuckle.
  17. Recording the number of turns required, unscrew the LH tie rod end from the tie rod.
    Note: Either mark the position of the tie rod end before removal, or record the number of turns required to remove it.
  18. Remove the jam nut from the tie rod.
  19. Working from the RH side, pull the tie rod all the way out, as if the steering wheel was turned completely to the right.
  20. Repeat steps 10-17 on the RH side.
  21. Disconnect the front electrical connectors (x2) from the steering rack.
  22. Release the fir tree clips from the LH and RH subframe braces.
  23. Remove the upper bolts (x2) that secure the LH and RH subframe braces to the subframe (torque 26 Nm).
  24. Remove the LH and RH subframe braces.
  25. If equipped, disconnect the electrical connector from the TXV valve.
  26. If equipped, disconnect the electrical connector from the 3 way coolant valve.
  27. Disconnect the edge clips (x2) and fir tree clip that secure the harness to the LH side of the steering rack and subframe, then move the harness out of the way.
  28. If the vehicle is equipped with the 2nd generation air conditioning compressor, move the compressor and bracket assembly toward the rear of the vehicle.
    Note: Do not disconnect the refrigerant lines from the compressor.
  29. Remove the nut that secures the A/C discharge line bushing hanger to the side member, then release the bushing hanger from the stud.
  30. Disconnect the electrical connector from coolant pump 2.
    Note: Coolant pump 2 is on the LH side of the vehicle.
  31. Release coolant pump 2 from its rubber mount.
    Note: Do not disconnect the coolant hoses from the pump.
  32. Remove the bolts (x2) that secure the steering rack assembly to the subframe (torque 175 Nm).
    Note: Record the positions of any shims.

Note: The following steps require 1 technician working in the RH wheelwell area, and 1 technician working in the underhood area.

  1. Rotate the rack toward the rear of the vehicle, then slide the rack toward the RH of the vehicle.
  2. Rotate the LH tie rod toward the front of the vehicle.
  3. Maneuver the LH tie rod around the hoses and pipes on the LH of the vehicle.
  4. Remove the steering rack through the underhood area.
    Tip: If the RH coolant hose interferes with removal of the steering rack, release the bolts (x2) that secure the 3 way coolant valve bracket to the subframe.

Installation

  1. Installation procedure is the reverse of removal, except for the following:
    Caution: Replace all nylon-insert locknuts.
    Caution: Replace all Patchbolt(s).
    Note: The LH and RH subframe braces are not interchangeable.
  2. Remove the protective caps from the tie rods of the new steering rack to ensure that there is no damage to the threads, then reinstall the protective caps.
  3. Turn the input shaft of the new steering rack completely clockwise.
  4. If the tie rod end positions were paint-marked earlier, transfer the paint marks to the new steering rack.
  5. Reinstall the steering rack.
  6. Install the subframe braces from the underhood area, but do not install the mounting bolts yet.
  7. Raise the vehicle.
  8. Confirm the proper position of the subframe braces. The rear portion of the brace is positioned between the subframe and side rail, and the front portion is positioned between the bolt head and the sway bar bracket.
  9. Loosely install the sway bar bolts and rear subframe bolts.
  10. Install the upper bolts (x2) that secure the LH and RH subframe braces to the subframe (torque 26 Nm).
  11. Fully tighten the sway bar bolts and rear subframe bolts.
  12. Install the tie rod ends using the same number of turns that were recorded during removal.
  13. Ensure that the front road wheels are in a straight ahead position before reconnecting the lower intermediate shaft.
  14. Transfer the vehicle to a 4 post lift (refer to procedure).
  15. Perform a wheel alignment check (refer to procedure).
  16. Perform a full firmware update.
  17. Run the "Power Steering (EPAS) Control" procedure in Toolbox.
    Note: After recalibrating the power steering, drive the vehicle for a minimum of 5 minutes before returning the vehicle to the customer.