Avalanche 2500 2WD V8-8.1L VIN G (2002)
7.
Loosen the fuel fill hose clamp (10) at the fuel fill pipe.
8.
Disconnect the fuel fill hose and the hose clamps (10) from the fuel fill pipe.
9.
Loosen the fuel vapor hose clamp (9) at the fill pipe.
10.
Disconnect the fuel vapor hose and hose clamp (9) from the fuel fill pipe.
11.
Disconnect the rear axle vent hose retainer from the fuel fill pipe bracket.
12.
Remove the fuel filler neck to body ground strap bolt from the frame.
13.
Lower the vehicle enough to gain access to the fuel filler door area.
14.
Remove the fuel filler cap from the fuel fill tube.
15.
Remove the three 7 mm (0.28 in) screws that retain the fuel filler neck to the retaining pocket in the body panel.
16.
Remove the filler neck from the vehicle.
17.
Replace the fuel tank filler pipe assembly with P/N 15181810.
18.
Reinstall the fuel filler neck to the vehicle and secure with the 7 mm (028 in) screws.
Tighten
Tighten the screws to 2.3 N.m (20 lb in).
19.
Reinstall the fuel cap to the filler neck.
20.
Reinstall the fuel filler neck ground strap to the frame bolt.
Tighten
Tighten the bolt to 9 N.m (80 lb in).
21.
Reinstall the rear axle vent tube retainer into its original location.
22.
Reinstall the fuel and vapor hoses to the fuel filler neck.
Tighten
Tighten the hose clamps to 2.5 N.m (22 lb in).
23.
Reconnect the negative battery cable.
