GM Service Manual Online
For 1990-2009 cars only

Evaporative Emission Canister Vent Solenoid Valve Replacement Rear of Tank

Removal Procedure

Note: Clean the evaporative emission (EVAP) connections and surrounding areas prior to disconnecting the fittings in order to avoid possible system contamination.


    Object Number: 2161074  Size: SH
  1. Lift and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Cut the canister vent solenoid hose (1) approximately 76 mm (3 in) from the evaporative emission canister vent solenoid (2).

  3. Object Number: 2161083  Size: SH
  4. Disconnect the vent solenoid hose retainers (1).
  5. Remove the vent solenoid hose and filter (2).
  6. Replace the vent hose with bulk 5/8 in heater hose.

Installation Procedure


    Object Number: 2161155  Size: SH
  1. Use a hose clamp (1) at the end of the vent hose.
  2. Ensure the filter (3) points down.
  3. Secure the vent hose with a tie strap (2) to the vent hose tee connector (4).
  4. Secure the remaining portion of the vent hose along the frame with tie straps as needed.

  5. Object Number: 2161179  Size: SH
  6. Position and install the evaporative canister vent solenoid (1) to the vehicle.
  7. Secure both ends with hose clamps (2).

Evaporative Emission Canister Vent Solenoid Valve Replacement Front of Tank

Removal Procedure

Note: Clean the evaporative emission (EVAP) connections and surrounding areas prior to disconnecting the fittings in order to avoid possible system contamination.


    Object Number: 2163747  Size: SH
  1. Lift and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Cut the canister vent solenoid hose (1) approximately 76 mm (3 in) from the evaporative emission canister vent solenoid (2).

  3. Object Number: 2163780  Size: SH
  4. Pull back on the retaining tab (1) and release the vent solenoid valve (2).

  5. Object Number: 2163861  Size: SH
  6. Disconnect the vent solenoid hose from the plastic retainers (1).
  7. Remove the vent solenoid hose.
  8. Replace the vent hose with bulk 5/8 in heater hose.

Installation Procedure


    Object Number: 2161155  Size: SH
  1. Use a hose clamp (1) at the end of the vent hose.
  2. Ensure the filter (3) points down.
  3. Secure the vent hose with a tie strap (2) to the vent hose tee connector (4).
  4. Use 5/8 in heater hose and secure it along the frame with tie straps as needed.

  5. Object Number: 2163878  Size: SH
  6. Position and install the evaporative canister vent solenoid (1) to the vehicle.
  7. Use 5/8 in heater hose (2) to secure both ends with hose clamps (3).