2021 Subaru Ascent BaseFACTORY OEM SERVICE PROCEDURE

Drive Pinion: 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 oil pan and control valve body. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Control Valve Body>REMOVAL .
  4. Remove the transmission harness. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transmission Harness>REMOVAL .
  5. Remove the extension case. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Extension Case>REMOVAL .
  6. Remove the rear drive shaft. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Rear Drive Shaft>REMOVAL .
  7. Remove the transfer clutch. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transfer Clutch>REMOVAL .
  8. Remove the transfer reduction driven gear. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transfer Reduction Driven Gear>REMOVAL .
  9. Remove the intermediate case. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Intermediate Case>REMOVAL .
  10. Remove the forward clutch. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Forward Clutch>REMOVAL .
  11. Remove the transmission case. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Transmission Case>REMOVAL .
  12. Remove the primary pulley, secondary pulley and variator chain. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>Primary Pulley and Secondary Pulley>REMOVAL .
  13. Using the ST (SOCKET (E20)), remove the drive pinion retainer and the release pressure pipe.
    G13200273Courtesy of SUBARU OF AMERICA, INC.
  14. Remove the O-ring from the release pressure pipe.
  15. Remove the O-rings.
    G13200274Courtesy of SUBARU OF AMERICA, INC.
  16. Remove the oil pump and the gasket.
    G13200275Courtesy of SUBARU OF AMERICA, INC.
  17. Remove the O-rings.
    G13200276Courtesy of SUBARU OF AMERICA, INC.
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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.