GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2008 🢒 Cobalt 🢒 Body Hardware and Trim 🢒 Interior Trim and Paneling 🢒 Pressure Relief Valve Replacement

Removal Procedure

    Object Number: 318859 Size: SH
  1. Open the rear compartment.
  2. Remove the rear bumper fascia. Refer to Rear Bumper Fascia Replacement .
  3. Pull back the rear compartment trim panel.
  4. Apply pressure at 2 upper locations and 2 lower locations, using a small, flat-bladed tool in order to release the retainers on the pressure relief valve.
  5. Remove the pressure relief valve from the lower quarter panel.

Installation Procedure

    Object Number: 318859 Size: SH
  1. Install the pressure relief valve to the lower quarter panel.
  2. Press the pressure relief valve into the quarter lower panel until the retainers lock into place at the upper and lower locations.
  3. Pull back the rear compartment trim panel.
  4. Install the rear bumper fascia. Refer to Rear Bumper Fascia Replacement .
  5. Close the rear compartment.