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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 56 (Automatic Transmission - JATCO CVT) >> Repair Instructions - On Vehicle >> Control Valve Body Replacement >> Removal Procedure

Removal Procedure

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  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. Rotate bayonet ring (3) counterclockwise to pull out the transmission wiring harness electrical connector upward and disconnect it.
    Fig 1: Bayonet Ring
    GM3351713Courtesy of GENERAL MOTORS COMPANY
  4. Remove the control valve body cover. Refer to Control Valve Body Cover Replacement .
  5. Remove the 3 fluid strainer mounting bolts (1).
    Fig 2: Fluid Strainer And Mounting Bolts
    GM4112657Courtesy of GENERAL MOTORS COMPANY
  6. Remove the fluid strainer (2) from the control valve body.
  7. Remove and DISCARD the O-ring (1) from the fluid strainer.
    Fig 3: O-Ring And Fluid Strainer
    GM4112659Courtesy of GENERAL MOTORS COMPANY
  8. If equipped with start/stop system, Remove the sub strainer bolt (1) and the sub strainer (3) from the control valve body.
    Fig 4: Sub Strainer And Sub Strainer Bolt
    GM4112661Courtesy of GENERAL MOTORS COMPANY
  9. Remove and DISCARD the O-ring (2) from the sub strainer (3).
  10. Remove the manual plate mounting nut (1).
    Fig 5: Manual Plate And Mounting Nut
    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.
  11. Remove the manual plate (3) and the spring washer (2) from the manual shaft.
  12. Remove the 11 control valve body mounting bolts (1).
    Fig 6: Control Valve Body Mounting Bolts
    GM4112671Courtesy of GENERAL MOTORS COMPANY
  13. Remove the control valve body from the transmission.
  14. Remove the terminal assembly (1) from the control valve body and disconnect the terminal assembly connector.
    Fig 7: Terminal Assembly
    GM4112673Courtesy of GENERAL MOTORS COMPANY
  15. Remove and DISCARD the O-ring (1) from the terminal assembly.
    Fig 8: O-Ring
    GM4112675Courtesy of GENERAL MOTORS COMPANY
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