2004 Subaru Forester XT, AutomaticFACTORY OEM SERVICE PROCEDURE

Control Valve Body: Assembly

  1. Install a new seal ring to the accumulator piston.
    Fig 1: Identifying New Seal Ring
    G00936191Courtesy of SUBARU OF AMERICA, INC.
  2. Apply ATF to the seal ring.
  3. Insert the piston fully into upper control valve body.
    Fig 2: Inserting Piston Fully Into Upper Control Valve Body
    G00936192Courtesy of SUBARU OF AMERICA, INC.
  4. Install the accumulator spring and four steel balls to specified positions of upper control valve body.
    Fig 3: Identifying Accumulator Spring And Four Steel Balls
    G00936193Courtesy of SUBARU OF AMERICA, INC.
  5. Align the hole in side plate with the hole in upper separator plate, and then install side plate and upper separator plate to middle control valve body.
    1. Tightening torque: 8 N.m (0.8 kgf-m, 5.8 ft-lb) 
    Fig 4: Identifying Side Plate And Upper Separator Plate
    G00936194Courtesy of SUBARU OF AMERICA, INC.
  6. Insert six steel balls in their proper positions to middle control valve body.
    Fig 5: Inserting Six Steel Balls In Their Proper Positions To Middle Control Valve Body
    G00936195Courtesy of SUBARU OF AMERICA, INC.
  7. Install three oil filters to lower valve body.
    NOTE: Pay attention to the location of oil filters.
Factory Service Tools

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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.