Fuel Fill Pipe: Removal

Ensure that the fuel level in the tank is not greater than half. If necessary, drain the fuel tank to at least this level. Refer to FUEL TANK DRAINING .
Position on hoist.
Disconnect negative battery cable
Remove fuel filler cap and rubber closeout grommet around fuel filler pipe neck (inside fuel filler door).
Remove attachment screw (T-30) at upper end of filler pipe.

Fig 1: Fuel Filler Cap And Attachment Screw
Courtesy of GENERAL MOTORS CORP.
Raise vehicle to a comfortable working position.
Remove wheel house inner liner.
Disconnect wiring harness connector at EVAP canister vent solenoid.
Remove fuel filler pipe lower bracket attachment screw (10 mm hex) at underbody left-hand side rail.
Disconnect EVAP canister vent hose at quick connect to canister vent hose.

Fig 2: Disconnecting EVAP Canister Vent Hose
Courtesy of GENERAL MOTORS CORP.
Loosen fuel filler pipe hose clamp (7 mm hex) closest to fuel tank.
CAUTION: SEVERAL OUNCES OF GASOLINE MAY REMAIN IN THE FUEL FILLER PIPE DUE TO THE DESIGN OF THE INLET CHECK VALVE. BE AWARE OF THIS WHEN HANDLING THE FILLER PIPE DURING REMOVAL FROM THE FUEL TANK. SURROUND THE CHECK VALVE BODY WITH A SHOP CLOTH HELD IN PLACE WITH YOUR HAND. HAVE A SUITABLE CONTAINER AVAILABLE AND DRAIN ANY FUEL BY UNSEATING THE CHECK VALVE.

NOTE: To provide space to remove filler pipe, guide top of filler pipe into quarter panel opening while removing fuel filler pipe.
Disengage the filler pipe hose from fuel tank and remove fuel filler pipe.
NOTE: Keep fuel filler pipe as straight and level as possible when removing it from the tank. Fuel fill check valve clamp may drag on the inlet neck of the tank and care should be used in removing it. If valve is dislodged from filler pipe it may remain in the tank.
Perform the "Service Bay Diagnostic Test" for the evaporative emission system using the Tech-2 7000081-SAT3. This test will verify the integrity of the vapor handling areas of the fuel system.