GM Service Manual Online
For 1990-2009 cars only

Caution: Fuel Vapors can collect while servicing fuel system parts in enclosed areas such as a trunk. To reduce the risk of fire and increased exposure to vapors:

   • Use forced air ventilation such as a fan set outside of the trunk.
   • Plug or cap any fuel system openings in order to reduce fuel vapor formation.
   • Clean up any spilled fuel immediately.
   • Avoid sparks and any source of ignition.
   • Use signs to alert others in the work area that fuel system work is in process.

Caution: Gasoline or gasoline vapors are highly flammable. A fire could occur if an ignition source is present. Never drain or store gasoline or diesel fuel in an open container, due to the possibility of fire or explosion. Have a dry chemical (Class B) fire extinguisher nearby.

Caution: Always wear safety goggles when working with fuel in order to protect the eyes from fuel splash.

Notice: Do not force a hose or the siphon of a hand operated pump into the fuel tank. Forcing the hose or siphon into the fuel tank can damage the check valve located in the fuel filler pipe.

  1. Check the level of the fuel in the fuel tank. If the fuel level is less than 3/4 full, go to Step 7.
  2. Remove the fuel filler cap.
  3. Insert a flexible siphon hose that is attached to a hand operated pump device into the fuel filler pipe.

  4. Object Number: 309778  Size: SH
  5. Gently feed the siphon hose down into the fuel filler pipe (1) until the hose reaches the check valve (3). The check valve is located in the neck of the fuel tank and can be reached with approximately 91 cm (36 in) of the hose.
  6. Drain any fuel (2) that is present at the check valve (3) with the hand operated pump device.
  7. Remove the siphon hose from the fuel filler pipe.
  8. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  9. Object Number: 239877  Size: SH
  10. Disconnect the fuel filler hose (2) from the fuel tank (3).
  11. Remove the check valve (1) from the neck of the fuel tank. Use a shop towel in order to catch any leaking fuel.

  12. Object Number: 309782  Size: SH
  13. Attach a siphon hose (2) to a hand operated pump device, and insert the hose into the fuel tank through the filler neck (1) opening.
  14. Drain the remaining fuel with the hand operated pump device until only a small amount of fuel (3) remains.

  15. Object Number: 239877  Size: SH
  16. Install the check valve (1) in the neck of the fuel tank.