Rear EVAP Fuel Tank Pipe Removal Procedure

IMPORTANT: When replacing the 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.

CAUTION: Refer to the Battery Disconnect Caution in Service Precautions




1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure.
3. Drain the fuel tank. Refer to Fuel Tank Draining Procedure (Pickup) or Fuel Tank Draining Procedure (Utility Single Tank) or Fuel Tank Draining Procedure (Utility Dual Tank Front) or Fuel Tank Draining Procedure (Utility Dual Tank Rear).
4. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
5. Clean all fuel and EVAP pipe and hose connections and the surrounding areas before disconnection in order to avoid possible contamination of the fuel system.




6. Remove the fuel tank.
7. Remove the rear EVAP pipe (1) from the fuel sender (2), the fuel tank roll over valve (3) and the fuel tank clips (6).
8. Cap the fuel sender EVAP pipe and the fuel tank roll over valve.