On the Hoist
Courtesy of GENERAL MOTORS CORP.
- Connect a scan tool to the vehicle diagnostic connector and turn the ignition ON.
- Relieve the fuel pressure. Refer to Fuel Pressure Relief Procedure .
- Raise the vehicle on a hoist to a comfortable working height, keeping the scan tool outside of the vehicle and accessible from under the car.
Courtesy of GENERAL MOTORS CORP.
- Disconnect the fuel feed line at the outlet to filter 3/8 in line.
- Install a 3/8 in x 1/4 in quick connect 1 adapter to the fuel feed line.
- Connect a suitable drain hose to the other end of the adapter, and connect the drain hose to a certified fuel handling cart.
- Energize the fuel pump using the scan tool. Refer to Fuel Pressure Relief Procedure .
- Pump out the fuel until no more than 1/4 tank remains.