GM Service Manual Online
For 1990-2009 cars
Makes 🢒 Chevrolet 🢒 2004 🢒 Tahoe - 2WD 🢒 Engine 🢒 Engine Controls - 4.8L, 5.3L, and 6.0L 🢒 Evaporative Emission Canister Vent Solenoid Valve Replacement

Evaporative Emission Canister Vent Solenoid Valve Replacement 1500 Series

Removal Procedure

Important: Clean all evaporative emission (EVAP) line connections and surrounding areas prior to disconnecting, in order to avoid possible EVAP system contamination.


    Object Number: 1346846 Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Disconnect the canister vent solenoid (CVS) electrical connector (1).

    3. Object Number: 1346845 Size: SH
  3. Disconnect the CVS quick connect fitting (1). Refer to Plastic Collar Quick Connect Fitting Service .
  4. Remove the harness clip from the CVS line.
  5. Push in the CVS retainer (2).
  6. Slide the CVS from the bracket.

Installation Procedure

    Object Number: 1346845 Size: SH
  1. Pry out the retainer on the CVS bracket (2) in order to engage the CVS.
  2. Slide the CVS onto the bracket. Ensure the CVS engages.
  3. Install the harness clip to the CVS line.
  4. Connect the CVS quick connect fitting (1). Refer to Plastic Collar Quick Connect Fitting Service .

    5. Object Number: 1346846 Size: SH
  5. Disconnect the canister vent solenoid (CVS) electrical connector (1).
  6. Lower the vehicle.

Evaporative Emission Canister Vent Solenoid Valve Replacement 2500 Series

Removal Procedure

Important: Clean all evaporative emission (EVAP) line connections and surrounding areas prior to disconnecting, in order to avoid possible EVAP system contamination.


    Object Number: 1224403 Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Disconnect the EVAP canister vent solenoid (CVS) electrical connector (1).
  3. Disconnect the CVS quick connect fittings at the canister. Refer to Plastic Collar Quick Connect Fitting Service .
  4. Disengage the retaining tab on the CVS bracket (2).
  5. Remove the CVS and line.
  6. If necessary, disconnect and remove the CVS line. Refer to Plastic Collar Quick Connect Fitting Service .

Installation Procedure

    Object Number: 1224403 Size: SH
  1. If necessary, install and connect the CVS line. Refer to Plastic Collar Quick Connect Fitting Service .
  2. Install the CVS and line.
  3. Engage the retaining tab on the CVS bracket (2).
  4. Connect the CVS quick connect fittings at the canister. Refer to Plastic Collar Quick Connect Fitting Service .
  5. Connect the EVAP canister vent solenoid (CVS) electrical connector (1).
  6. Lower the vehicle.