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Home >> Buick >> 2015 >> Regal GS, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 6T70 - Repair Instructions - On Vehicle >> Repair Instructions - On Vehicle >> Control Valve Body Cover Replacement >> Removal Procedure

Removal Procedure

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (Without Start/Stop) .
  2. Fig 1: Identifying Oil Cooler Inlet And Outlet Hoses
    GM1832466Courtesy of GENERAL MOTORS COMPANY
  3. Remove the oil cooler inlet hose. Refer to Fluid Cooler Inlet Hose Replacement (MHH) .
  4. Remove the oil cooler outlet hose. Refer to Fluid Cooler Outlet Hose Replacement .
  5. Disconnect and reposition the battery positive and negative cable from in front of the valve body cover. Refer to Battery Negative Cable Replacement (without KL9) , and Battery Positive Cable Replacement .
  6. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  7. Drain the transmission. Refer to Transmission Fluid Drain and Fill .
  8. Fig 2: Identifying Wire Harness Retainer & TCM Electrical Connector
    GM1831034Courtesy of GENERAL MOTORS COMPANY
  9. Remove the wire harness retainer (2) from the control valve body cover stud, if equipped .
  10. Disconnect the control valve body transmission control module (TCM) electrical connector (1).
  11. Fig 3: Identifying Control Valve Body Cover Studs & Bolts
    GM1803480Courtesy of GENERAL MOTORS COMPANY
  12. Remove the 2 control valve body cover studs M6 x 30.
  13. Remove the 12 control valve body cover bolts M6 x 30.
  14. Remove the front transmission mount. Refer to Transmission Front Mount Replacement .
  15. Remove the control valve body cover.
  16. Remove the control valve body cover gasket.
  17. CAUTION:

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

  18. Remove the control valve body cover wiring connector hole seal.
  19. Remove all traces of the old gasket material. Clean the transmission case and control valve body cover gasket surfaces.