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Home >> Chevrolet >> 2018 >> Spark LT, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Automatic Transmission - JATCO CVT) >> Repair Instructions - On Vehicle >> Control Valve Body Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Drain the transmission fluid. Refer to Transmission Fluid Drain and Fill (Maintenance) Transmission Fluid Drain and Fill (Repair) .
  3. GM3351713Courtesy of GENERAL MOTORS COMPANY

    Rotate bayonet ring (3) counterclockwise to pull out the transmission wiring harness electrical connector upward and disconnect it.

  4. Remove the control valve body cover. Refer to Control Valve Body Cover Replacement .
  5. GM4112657Courtesy of GENERAL MOTORS COMPANY

    Remove the 3 fluid strainer mounting bolts (1).

  6. Remove the fluid strainer (2) from the control valve body.
  7. GM4112659Courtesy of GENERAL MOTORS COMPANY

    Remove and DISCARD the O-ring (1) from the fluid strainer.

  8. GM4112661Courtesy of GENERAL MOTORS COMPANY

    If equipped with start/stop system, Remove the sub strainer bolt (1) and the sub strainer (3) from the control valve body.

  9. Remove and DISCARD the O-ring (2) from the sub strainer (3).
  10. GM4112664Courtesy of GENERAL MOTORS COMPANY
    NOTE:
    • To prevent excessive torque application to the manual shaft, remove nut by fixing the manual plate with a flat-blade screwdriver or an equivalent.
    • To prevent deformation to manual valve, never allow the tool (e.g. screwdriver) to directly touch the manual valve.

    Remove the manual plate mounting nut (1).

  11. Remove the manual plate (3) and the spring washer (2) from the manual shaft.
  12. Fig 1: Identifying Control Valve Body Mounting Bolts
    GM4112671Courtesy of GENERAL MOTORS COMPANY

    Remove the 11 control valve body mounting bolts (1).

  13. Remove the control valve body from the transmission.
  14. GM4112673Courtesy of GENERAL MOTORS COMPANY

    Remove the terminal assembly (1) from the control valve body and disconnect the terminal assembly connector.

  15. GM4112675Courtesy of GENERAL MOTORS COMPANY

    Remove and DISCARD the O-ring (1) from the terminal assembly.