LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 198 (Manual Transmission - TREMEC 6-Speed (M3L Mg9)) >> Repair Instructions - On Vehicle >> Transmission Replacement (MG9) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Catalytic Converter Brace Bracket (LF4)
    GM4020166Courtesy of GENERAL MOTORS COMPANY
  1. Remove the catalytic converter brace bracket. Refer to Catalytic Converter Brace Bracket Replacement (LF4)
  2. Disconnect the shift control assembly from the transmission. Refer to Shift Control Assembly Replacement (MG9) 
  3. Fig 2: Lower Transmission Clutch Housing Fasteners
    GM4045964Courtesy of GENERAL MOTORS COMPANY
  4. Remove the eight lower transmission clutch housing to engine fasteners (1 through 8).
  5. Disconnect the following electrical connectors:
  6. Fig 3: Transmission Fluid Cooler Pipe And Fitting Retainer At Transmission
    GM4050818Courtesy of GENERAL MOTORS COMPANY
  7. Transmission Fluid Cooler Pipe Fitting Retainer (1) @ Transmission. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection
  8. NOTE:

    Cover or plug all open transmission fluid cooler pipe connection points to help avoid any accidental contamination.

  9. Remove Transmission Fluid Cooler Pipe (Front Jumper Left) (2) @ Transmission
  10. Fig 4: Transmission Fluid Cooler Inlet And Outlet Pipe And Retaining Clip At Transmission
    GM4062437Courtesy of GENERAL MOTORS COMPANY
  11. Remove Transmission Fluid Cooler Inlet and Outlet Pipe Clip (1) @ Transmission. Refer to Transmission Fluid Cooler Hose/Pipe Quick-Connect Fitting Disconnection and Connection
  12. NOTE:

    Cover or plug all open transmission fluid cooler pipe connection points to help avoid any accidental contamination.

  13. Remove Transmission Fluid Cooler Inlet and Outlet Pipe (2) @ Transmission
  14. Fig 5: Hydraulic Clutch Hose/Pipe And Retaining Clip At Clutch Slave Cylinder
    GM4163092Courtesy of GENERAL MOTORS COMPANY
  15. Remove the hydraulic clutch hose/pipe (1) retaining clip from the clutch slave cylinder.
  16. Disconnect the hydraulic clutch hose/pipe (2) from the clutch slave cylinder. Plug the lower hose end.
  17. Reposition the thermostat housing. Refer to Engine Coolant Thermostat Housing Replacement (LF4)
  18. Remove the engine and transmission as an assembly. Refer to Engine Replacement (LF4 (Manual Transmission))
  19. Fig 6: Upper Transmission Clutch Housing Fasteners
    GM4050895Courtesy of GENERAL MOTORS COMPANY
  20. Remove the eight upper transmission clutch housing to engine fasteners (1 through 4).
  21. Separate the transmission from the engine.
  22. Flush and flow test the transmission oil cooler and lines. Refer to Transmission Fluid Cooler Flow Test and Flushing (Tremec 6-Speed)