C 1500 Yukon 2WD V8-5.3L VIN T (2002)
1. Lubricate a NEW fuel return pipe O-ring (6) with clean engine oil.
2. Install the fuel return pipe O-ring (6) onto the fuel return pipe (1).
3. Install the fuel return pipe (1).
NOTE: Refer to the Fastener Notice in Service Precautions.
4. Install the fuel return pipe retainer (2) and the fuel return pipe attaching screw (3).
5. Install the crossover fuel pipe retainer clip (5).
IMPORTANT: When installing the retaining clip attaching screw for the crossover pipe, always start the screw by hand. This will prevent
consequent stripping of the threads in the rail.
6. Install the retaining clip attaching screw (4).
Tighten
6.1.
Tighten the crossover fuel pipe retainer clip attaching screw (4) to 3.8 N.m (34 lb in).
6.2.
Tighten the fuel return pipe attaching screw (3) to 5 N.m (44 lb in).
7. Connect the fuel return (2) and the fuel feed (1) pipes to the fuel rail.
8. Tighten the fuel filler cap.
9. Connect the negative battery cable.
10. Use the following procedure in order to inspect for leaks:
10.1. Turn ON the ignition, with the engine OFF, for 2 seconds.
10.2. Turn OFF the ignition for 10 seconds.
10.3. Turn ON the ignition, with the engine OFF.
10.4. Inspect for fuel leaks.
11. Install the engine sight shield.
