GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2000 🢒 Century 🢒 Engine 🢒 Engine Controls - 3.1L (LG8) 🢒 Fuel Tank Draining
  1. Relieve the fuel system fuel pressure. Refer to Fuel Pressure Relief .
  2. Loosen the fuel tank filler pipe cap.
  3. Remove the fuel sender assembly. Refer to Fuel Sender Assembly Replacement

    4. Caution: Do not drain the fuel into an open container. Never store the fuel in an open container due to the possibility of a fire or an explosion.

    Notice: Do not drain fuel through the fuel tank filler pipe in order to prevent damage to the fuel tank filler pipe check-ball.

  4. Use a hand operated fuel pump device in order to drain the fuel through the fuel sender access panel.
  5. Install the fuel sender assembly. Refer to Fuel Sender Assembly Replacement
  6. Add fuel and tighten the fuel tank filler pipe cap.
  7. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  8. Inspect the fuel system for leaks by performing the following steps:
    9. 8.1. Turn the ignition switch ON for 2 seconds.
    8.2. Turn the ignition switch to the OFF for 10 seconds.
    8.3. Turn the ignition switch ON.
    8.4. Inspect for fuel leaks.