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Home >> GMC >> 2013 >> Yukon Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1101 (Automatic Transmission - 6L50/6L80/6L90 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Repair Instructions - On Vehicle >> Control Solenoid Valve and Transmission Control Module Assembly Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: The valve body must be removed from the transmission to replace the control solenoid valve and transmission control module assembly.
    Fig 1: View Of Transmission Oil Pan And Filter
    GM1649733Courtesy of GENERAL MOTORS CORP.
  1. Remove the transmission oil pan and filter. Refer to Automatic Transmission Fluid, Fluid Pan and/or Filter Replacement .
  2. Remove the electrical connector passage sleeve. Refer to Automatic Transmission Electrical Connector Passage Sleeve Replacement .
    3. Fig 2: View Of Valve Body Bolts
    GM1685807Courtesy of GENERAL MOTORS CORP.
  3. Remove the valve body bolts (1).
    4. Fig 3: Valve Body Assembly
    GM1685819Courtesy of GENERAL MOTORS CORP.
  4. Remove the upper and lower control valve body assembly.
    5. Fig 4: View Of Speed Sensor Electrical Connector
    GM1758085Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the speed sensor electrical connector (2) from the control solenoid valve assembly.
  6. Turn the control valve body assembly over.
    7. Fig 5: Manual Shift Shaft Position Switch Connector
    GM1758088Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Release the connector lock before disconnecting.
  7. Disconnect the manual shift shaft position switch connector (4) from the control solenoid valve assembly.
  8. Remove the bolt (3) and remove the manual shift shaft position switch assembly.
    9. Fig 6: View Of Control Valve Body Assembly
    GM1758093Courtesy of GENERAL MOTORS CORP.
  9. Remove the 2 bolts (1) from the "heat sink" side of the control solenoid valve assembly.
    10. Fig 7: View Of Bolts
    GM1758109Courtesy of GENERAL MOTORS CORP.
  10. Remove the 5 bolts (2) and the 4 bolts (1) securing the control solenoid valve assembly to the control valve body assembly.
    11. Fig 8: View Of Control Valve Body Assembly
    GM1758093Courtesy of GENERAL MOTORS CORP.
  11. Remove the control valve body assembly.
    12. NOTE: Use care when removing or installing the filter plate assembly. A broken or missing retaining tab may not adequately secure the filter plate to the control solenoid valve assembly, resulting in possible damage or contamination.
  12. Carefully remove and discard the filter plate assembly (5).
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