Section 13 (Emission Control Systems (Aux. Emission Control Devices) (WRX-STI)): Canister: Removal

WARNING: This page is about a different variant/trim than selected.

WARNING: Place "NO OPEN FLAMES" signs near the working area.

CAUTION: Be careful not to spill fuel.

Release the fuel pressure. < Ref. to RELEASING OF FUEL PRESSURE , PROCEDURE, Fuel. >
Drain fuel. < Ref. to DRAINING FUEL (WITH SUBARU SELECT MONITOR) , PROCEDURE, Fuel. >
Disconnect the ground cable from battery.
Lift up the vehicle.
Remove the rear exhaust pipe. < Ref. to REMOVAL , Rear Exhaust Pipe. >
Remove the propeller shaft. < Ref. to REMOVAL , Propeller Shaft. >
Support the rear differential with the transmission jack.
Disconnect the connector from oil temperature sensor.

Fig 1: Locating Oil Temperature Sensor Connector
Courtesy of SUBARU OF AMERICA, INC.
Remove the self-locking nuts which hold the rear differential to the rear sub frame assembly.

Fig 2: Locating Rear Differential Self-Locking Nuts
Courtesy of SUBARU OF AMERICA, INC.
Remove the rear differential member from the rear sub frame assembly and the rear differential.

Fig 3: Locating Rear Differential Member Self-Locking Nut
Courtesy of SUBARU OF AMERICA, INC.
Lower the transmission jack gradually until the rear differential is at the position shown in the figure.
NOTE:
- When pulling out the stud bolt from the bushing portion of the rear sub frame assembly, adjust the angle and location of transmission jack and jack stand.
  
  Fig 4: Pulling Stud Bolt From Rear Sub Frame Assembly Bushing Portion
  Courtesy of SUBARU OF AMERICA, INC.
- Do not lower the rear differential excessively. Doing so may add extra load to the drive shaft or cause the falling-off of the drive shaft.
  
  Fig 5: Identifying Rear Differential
  Courtesy of SUBARU OF AMERICA, INC.
Disconnect the vent tube from vent hose.

Fig 6: Locating Vent Tube And Vent Hose Clamp
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the drain tube (A) and purge tube (B) from the canister.
NOTE: Disconnect the quick connector as shown in the figure.

Fig 7: Disconnecting Drain Tube And Purge Tube From Canister
Courtesy of SUBARU OF AMERICA, INC.

Fig 8: Identifying Drain Tube And Purge Tube
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the fuel filler hose from the fuel filler pipe assembly.

Fig 9: Locating Fuel Filler Hose Clamp
Courtesy of SUBARU OF AMERICA, INC.
Remove the tube clamp from the canister bracket A, and remove the drain tube from the tube clamp.

Fig 10: Removing Drain Tube From Tube Clamp
Courtesy of SUBARU OF AMERICA, INC.
Remove the bolts and clip (A) securing the canister to the vehicle, and remove the canister.

Fig 11: Locating Bolts And Clip
Courtesy of SUBARU OF AMERICA, INC.
Disconnect the vent tube (B) from the canister and remove the canister bracket A (A).
NOTE:
- Disconnect the quick connector as shown in the figure.
  
  Fig 12: Disconnecting Vent Tube From Canister
  Courtesy of SUBARU OF AMERICA, INC.
- The canister bracket cannot be separated from the canister. Therefore, be sure to replace both of them with new ones when replacing the canister or canister bracket.
  
  Fig 13: Identifying Canister And Canister Bracket
  Courtesy of SUBARU OF AMERICA, INC.