On The Hoist

Remove air cleaner inlet tubing from throttle body.
Connect 7000081-SAT3 Tech-2 to vehicle diagnostic connector and turn ignition On.
CAUTION: FUEL SUPPLY LINES WILL REMAIN PRESSURIZED FOR LONG PERIODS OF TIME AFTER THE ENGINE IS SHUT DOWN. THIS PRESSURE MUST BE RELIEVED BEFORE SERVICING THE FUEL SYSTEM.
Relieve pressure in fuel system at fuel pressure test port. Refer to RELIEVING FUEL PRESSURE .

Fig 1: Relieving Fuel Pressure
Courtesy of GENERAL MOTORS CORP.
Raise vehicle on hoist to comfortable working height, keeping Scan tool outside of vehicle and accessible from under car.
CAUTION: WHENEVER FUEL LINE FITTINGS ARE LOOSENED OR REMOVED, WRAP A SHOP CLOTH AROUND THE FITTING AND HAVE AN APPROVED CONTAINER AVAILABLE TO COLLECT ANY FUEL.
Disconnect fuel feed line at inlet to filter/regulator (5/16 in. line).

Fig 2: Fuel Feed Line
Courtesy of GENERAL MOTORS CORP.
Install 5/16" x 1/4" quick connect (1) adapter from Fuel Flow/Pressure Adapter SA9127E-7 into fuel feed line, connect suitable drain hose to other end of adapter, and connect drain hose to certified fuel handling cart.

Fig 3: Installing Quick Connect Adapter
Courtesy of GENERAL MOTORS CORP.
Energize the fuel pump using the Scan tool. Refer to ENERGIZING THE FUEL PUMP .
Pump out all fuel (or until no more than 1/4 tank remains).