WARNING: This page is about a different car, the 2003 Subaru Outback, 2003 Subaru Legacy, and 2003 Subaru Baja. However, it is still accessible from the selected car via links, so may be relevant.

Install a new seal ring to piston.

Fig 1: Installing New Seal Ring To Piston
Courtesy of SUBARU OF AMERICA, INC.
Apply ATF to the seal ring.
Insert the piston fully into upper valve body.

Fig 2: Inserting Piston Fully Into Upper Valve Body
Courtesy of SUBARU OF AMERICA, INC.
Install the spring and four steel balls to specified positions of upper valve body.

Fig 3: Installing Spring & Four Steel Balls To Specified Positions Of Upper Valve Body
Courtesy of SUBARU OF AMERICA, INC.
Align the hole in side plate with the hole in separator plate, and then install support plate and upper separator plate to middle valve body.
1. Tightening torque: 8 N.m (0.8 kgf-m, 5.8 ft-lb)
Fig 4: Installing Support Plate & Upper Separator Plate To Middle Valve Body
Courtesy of SUBARU OF AMERICA, INC.
Insert six steel balls in their proper positions to middle valve body.

Fig 5: Inserting Six Steel Balls To Proper Positions To Middle Valve Body
Courtesy of SUBARU OF AMERICA, INC.
Install three filters to lower valve body.
NOTE: Pay attention to the location of filters.

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.

Safety Warning

Control Valve Body: Assembly

Use the Manual With the Right Hardware

When to See a Mechanic

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