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Home >> Cadillac >> 2021 >> CT4 V, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 194 (Automatic Transmission - 10L60 (MQA) Or 10L80 (MHU) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Control Valve Assembly and Transmission Wiring Harness Installation >> Single Use Fasteners and Components

Single Use Fasteners and Components

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
  1. GM5428709Courtesy of GENERAL MOTORS COMPANY

    Wiring Harness Connector Seal - O-Ring (1) - Install NEW [2x]

  2. GM5913161Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Ensure the bulkhead connector is fully snapped into the case and seated flush.

    Automatic Transmission Wiring Harness (1) - Install

  3. Connect the electrical connectors.
  4. Position the speed sensor wire under the wire harness retainer tab, install and hand tighten the 2 automatic transmission control wiring harness clip bracket bolts (3).
    5. CAUTION:

    Refer to Fastener Caution

  6. Automatic Transmission Control Wiring Harness Clip Bracket Bolt (4) - Install and tighten [2x] - Fastener Specifications
  7. Tighten bolts after speed sensor installation. One of the speed sensor wires needs to be routed under a retainer tab on this harness.
  8. Automatic Transmission Control Wiring Harness Retainer-Push Pin (2) - Install NEW [2x]
  9. GM5539364Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Turbine Speed Sensor (1), and Automatic Transmission Speed Sensor Bolt (2) - Install

    NOTE:

    The bolt is retained in the sensor.

  10. Automatic Transmission Speed Sensor Bolt (2) - Tighten - Fastener Specifications
  11. Connect the electrical connector as shown.
  12. GM5539365Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Intermediate Speed Sensor-A (1), and Automatic Transmission Speed Sensor Bolt (2) - Install

    NOTE:

    The bolt is retained in the sensor.

  13. Automatic Transmission Speed Sensor Bolt (2) - Tighten - Fastener Specifications
  14. Connect the electrical connector as shown.
  15. GM5539390Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Intermediate Speed Sensor-B (1), and Automatic Transmission Speed Sensor Bolt (2) - Install

    NOTE:

    The bolt is retained in the sensor.

  16. Automatic Transmission Speed Sensor Bolt (2) - Tighten - Fastener Specifications
  17. Connect the electrical connector as shown.
  18. GM5539392Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Output Speed Sensor (1), and Automatic Transmission Speed Sensor Bolt (2) - Install

    NOTE:

    The bolt is retained in the sensor.

  19. Automatic Transmission Speed Sensor Bolt (2) - Tighten - Fastener Specifications
  20. Connect the electrical connector as shown.
  21. Fig 1: Identifying Control Valve Assembly Installation Components
    GM5111987Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Ensure the automatic transmission fluid pump seal is in the control valve body.

    CAUTION:

    The Park Pawl Actuator Lever must be in the park position, fully forward position, and aligned with the slot in the piston servo prior to lowering the Control Valve Assembly into place. Contact between the switch housing or magnet carrier and the end of the Park Pawl Actuator Lever during installation can damage these components and lead to failure. This damage may not be immediately apparent and may occur during subsequent vehicle operation.

    Place park pawl actuator lever (1) in the park position, fully forward position. The piston servo (2) opening must be positioned with the slot in the vertical position as shown. Use appropriate tool to reposition if necessary. Carefully place the control valve body (3) into the transmission while avoiding contact between the switch housing (4), magnet carrier (5), and the end of the park pawl actuator lever (1).Ensure the park pawl actuator lever (1) is aligned inside the piston servo (2) opening.

  22. Control Valve (3) - Install
    23. NOTE:

    Ensure the wiring harness is not pinched anywhere after valve body installation.

  23. Connect the main control wiring harness connector as shown.
  24. Park Inhibitor Solenoid (6) - Install
  25. Connect the Park Inhibitor Solenoid (6) connector as shown.
  26. GM5111981Courtesy of GENERAL MOTORS COMPANY

    Clean the bolt holes and ensure they are free from any old sealant. Allow to dry before installing NEW bolts.

    27. NOTE:

    The bolts are marked by arrows in the valve body casting.

  27. Control Valve Body Bolt (1) - Install and tighten in sequence [2x] - Fastener Specifications
  28. Control Valve Solenoid Body Bolt (2) Install NEW and tighten in sequence [3x] - Fastener Specifications
  29. Control Valve Solenoid Body Bolt (3) Install and tighten in sequence [2x] - Fastener Specifications
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