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Home >> Subaru >> 2022 >> WRX Base, Standard Trans >> Repair and Diagnosis >> Engine Mechanical >> Auxiliary Emission Control Systems >> Emission Control Systems (Aux. Emission Control Devices) >> Check Valve >> Removal

Check Valve: Removal

  1. Disconnect the ground terminal from battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY
  2. Remove the intake duct No. 2. Ref. to INTAKE (INDUCTION) (H4DOTC)>INTAKE DUCT>REMOVAL>INTAKE DUCT NO. 2
  3. Remove the clip from the vacuum hose stay.
  4. Disconnect the vacuum hose (A), and remove the check valve No. 1 (B).
    G13619873Courtesy of SUBARU OF AMERICA, INC.
  5. Remove the generator. Ref. to STARTING/CHARGING SYSTEMS (H4DOTC)>GENERATOR>REMOVAL
  6. Disconnect the vacuum hose (A) from the intake manifold assembly.
  7. Disconnect the vacuum hose (B) from the intake manifold assembly, and remove the check valve No. 2 from the vacuum hose (B).
    G13198485Courtesy of SUBARU OF AMERICA, INC.
  8. Break the clamp, and remove the vacuum hose from the check valve No. 2.
    G13198486Courtesy of SUBARU OF AMERICA, INC.
  9. Disconnect the vacuum hose (A) from the purge control solenoid valve, and remove the vacuum pipe and vacuum hose.
    G13198487Courtesy of SUBARU OF AMERICA, INC.
  10. Remove the vacuum hose from the vacuum pipe.
    G13198488Courtesy of SUBARU OF AMERICA, INC.
  11. Lift up the vehicle.
  12. Remove the under cover front. Ref. to EXTERIOR/INTERIOR TRIM>FRONT UNDER COVER>REMOVAL
  13. Disconnect the vacuum hose from the intake duct No. 1.
    G14610338Courtesy of SUBARU OF AMERICA, INC.
  14. Remove the vacuum hose stay.
    NOTE:

    Perform this procedure only when required. 

    G13619879Courtesy of SUBARU OF AMERICA, INC.
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