GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Important: When replacing the evaporative emission (EVAP) pipe, always replace the pipe with original equipment or parts that meet the GM specifications for this part. The replacement pipe must have the same type of fittings as the original pipe in order to ensure the integrity of the connection.


    Object Number: 300138  Size: SH
  1. Remove the fuel tank. Refer to Fuel Tank Replacement .

  2. Object Number: 396067  Size: SH
  3. Disconnect the rear EVAP vapor pipe (1) from the fuel sender (2), the fuel tank roll over valve (3), and the fuel tank clips (6).
  4. Remove the EVAP vapor pipe from the fuel tank.
  5. Cap the fuel sender EVAP pipe and the fuel tank roll over valve.

Installation Procedure


    Object Number: 396067  Size: SH
  1. Remove the caps from the fuel sender EVAP pipe and the fuel tank roll over valve.
  2. Position the EVAP vapor pipe on the fuel tank.
  3. Connect the EVAP vapor pipe (1) to the fuel sender (2), the fuel tank roll over valve (3), and the fuel tank clips (6).

  4. Object Number: 300138  Size: SH
  5. Install the fuel tank. Refer to Fuel Tank Replacement .