GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 739474  Size: SH
  1. Remove the pickup box. Refer to Pickup Box Replacement in Body Rear End.
  2. Disconnect the rear evaporative emission (EVAP) pipe from the chassis EVAP pipe near the fuel filter.
  3. Disconnect the EVAP pipe (2) from the EVAP canister (1).
  4. Remove the EVAP pipe from the retainers.
  5. Cap the EVAP pipes in order to prevent possible EVAP system contamination.

Installation Procedure


    Object Number: 739474  Size: SH
  1. Remove the caps from the EVAP pipes.
  2. Connect the rear EVAP pipe to the chassis EVAP pipe near the fuel filter.
  3. Connect the EVAP pipe (2) to the EVAP canister (1).
  4. Install the EVAP pipe into the retainers.
  5. Install the pickup box. Refer to Pickup Box Replacement in Body Rear End.