2021 Subaru Ascent BaseFACTORY OEM SERVICE PROCEDURE

Transmission Case: Removal

  1. Remove the transmission body. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transmission Assembly>REMOVAL .
  2. Remove the air breather hose. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Air Breather Hose>REMOVAL .
  3. Remove the transmission harness. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transmission Harness>REMOVAL .
  4. Remove the secondary speed sensor. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Secondary Speed Sensor>REMOVAL .
  5. Remove the inhibitor switch. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Inhibitor Switch>REMOVAL .
  6. Remove the extension case. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Extension Case>REMOVAL .
  7. Remove the rear drive shaft. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Rear Drive Shaft>REMOVAL .
  8. Remove the transfer clutch. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transfer Clutch>REMOVAL .
  9. Remove the transfer reduction driven gear. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transfer Reduction Driven Gear>REMOVAL .
  10. Remove the intermediate case. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Intermediate Case>REMOVAL .
  11. Remove the forward clutch. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Forward Clutch>REMOVAL .
  12. Remove the reduction driven gear. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Reduction Driven Gear>REMOVAL .
  13. Remove the oil pan and control valve body. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Control Valve Body>REMOVAL .
  14. Remove the CVTF pipe using a flat tip screwdriver, etc.
    NOTE: Remove it by applying a flat tip screwdriver to the stepped portion of CVTF pipe.
    G13864044Courtesy of SUBARU OF AMERICA, INC.
  15. Remove the transmission case.
    G13200229Courtesy of SUBARU OF AMERICA, INC.
  16. Remove the O-rings from the application pressure pipe, lubrication pipe, and release pressure pipe.
    G13200230Courtesy of SUBARU OF AMERICA, INC.
  17. Remove the control device system. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transmission Control Device>REMOVAL .
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.