GM Service Manual Online
For 1990-2009 cars only
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  2. Object Number: 374848  Size: SH
  3. Disconnect the fuel pump connector.
  4. Lower the vehicle.
  5. Start and run the engine until the fuel supply remaining in the fuel pipes is consumed. Engage the starter for 3 seconds in order to assure relief of any remaining pressure.
  6. Raise the vehicle.
  7. Reconnect the fuel pump connector.
  8. Lower the vehicle.
  9. Disconnect the negative battery cable in order to avoid possible fuel discharge if an accidental attempt to start the engine is made. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.