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Home >> Chevrolet >> 2017 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 26 (Automatic Transmission - 6T45 (MH7) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Control Valve Body Cover Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the battery tray. Refer to Battery Tray Replacement .
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  3. Remove the underbody brace - front. Refer to Underbody Brace Replacement - Front .
  4. Drain the transmission fluid. Refer to Transmission Fluid Drain and Fill .
  5. Remove the radiator inlet hose. Refer to Radiator Inlet Hose Replacement .
  6. Remove the charge air cooler outlet air hose. Refer to Charge Air Cooler Outlet Air Hose Replacement .
  7. Remove the transmission fluid cooler inlet pipe. Refer to Transmission Fluid Cooler Inlet Pipe Replacement .
  8. Remove the transmission fluid cooler outlet pipe. Refer to Transmission Fluid Cooler Outlet Pipe Replacement .
  9. Plug and/or cap the pipes and the transmission to prevent contamination.
  10. GM1999448

    Disconnect the electrical connector (1) from the transmission control module (TCM), then unclip the connector from the transmission.

  11. Remove the wiring harness starter from the transmission. Remove the bolt from the retainer on the valve body cover. Unclip the wiring harness from the retainer on the valve body cover and the range selector cable bracket.
  12. GM1999445

    Remove the 13 control valve body cover bolts (1).

  13. Remove the control valve body cover (2).
  14. Remove and DISCARD the control valve body cover gasket (3).
    15. CAUTION:

    Support the control solenoid valve assembly around the connector when removing the seal. Excessive pulling force can damage the internal electrical connections.

  15. Remove and DISCARD the control valve body cover wiring connector hole seal (4).
  16. Remove all traces of the old gasket material. Clean the transmission case and control valve body cover gasket surfaces.
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