GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 698627  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the left inner rear fender liner. Refer to Rear Wheelhouse Panel Liner Replacement in Body Rear End.
  3. Remove the evaporative emission (EVAP) canister vent valve attaching screw (2) and lower the assembly.
  4. Disconnect the EVAP vent valve electrical connector (1).
  5. Remove the vent hose (3) from the EVAP vent valve.
  6. Remove the EVAP vent valve from the bracket.

Installation Procedure


    Object Number: 698627  Size: SH
  1. Install the EVAP vent valve on to the bracket.
  2. Install the vent hose (3) to the EVAP vent valve.
  3. Connect the EVAP vent valve electrical connector (1).
  4. Install the EVAP canister vent valve assembly.
  5. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  6. Install the EVAP canister vent valve bracket screw.
  7. Tighten
    Tighten the screw to 6 N·m (53 lb in).

  8. Install the left inner rear fender liner. Refer to Rear Wheelhouse Panel Liner Replacement in Body Rear End.
  9. Lower the vehicle.