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Home >> GMC >> 2008 >> Acadia SLE, AWD >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 6T70/6T75 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> 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 .
  2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .
    3. Fig 1: Identifying Oil Cooler Hoses & Retainer Nuts
    GM1831036Courtesy of GENERAL MOTORS CORP.
  3. Remove the oil cooler inlet hose (1) from the retainer on the control valve body cover.
  4. Remove the oil cooler outlet hose retainer nut (5) from the control valve body cover.
  5. Remove the oil cooler outlet hose (4) from the retainer on the control valve body cover.
  6. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  7. Remove the left engine splash shield. Refer to Engine Splash Shield Replacement .
  8. Drain the transmission. Refer to Transmission Fluid Replacement .
    9. Fig 2: Identifying Wire Harness Retainer & TCM Electrical Connector
    GM1831034Courtesy of GENERAL MOTORS CORP.
  9. Remove the wire harness retainer (2) from the control valve body cover stud.
  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 CORP.
  11. Remove the 2 control valve body cover studs M6 x 30.
  12. Remove the 12 control valve body cover bolts M6 x 30.
  13. Support the transmission with a transmission jack.
  14. Using the transmission jack raise the transmission to gain clearance for removal of the control valve body cover.
  15. Remove the control valve body cover.
  16. Remove the control valve body cover gasket.
    17. NOTE: Support the control solenoid valve assembly around the connector when removing the seal. Excessive pulling force can damage the internal electrical connections.
  17. Remove all traces of the old gasket material. Clean the transmission case and control valve body cover gasket surfaces.
  18. Remove the control valve body cover wiring connector hole seal from the TCM.
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