GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Important: Clean all the fuel and evaporative emission (EVAP) pipe connections and surrounding areas before disconnecting the pipes in order to avoid possible fuel/EVAP system contamination.


    Object Number: 815641  Size: SH
  1. Remove the fuel tank. Refer to Fuel Tank Replacement .
  2. Disconnect and remove the EVAP pipe (1) from the roll over valve, sending unit and retaining clip.
  3. Cap the fuel and EVAP pipes in order to prevent possible fuel/EVAP system contamination.

Installation Procedure


    Object Number: 815641  Size: SH
  1. Remove the caps from fuel and EVAP pipes.
  2. Install and connect the EVAP pipe (1) to the roll over valve, sending unit, and retaining clip.
  3. Install the fuel tank. Refer to Fuel Tank Replacement .