K 1500 Suburban 4WD V8-4.8L VIN V (2003)
INSTALLATION PROCEDURE
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).
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).
NOTE: Refer to the Fastener Notice in Service Precautions See: Service Precautions/Vehicle Damage Warnings/Fastener Notice.
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
-
Tighten the crossover fuel pipe retainer clip attaching screw (4) to ...........................3.8 N.m (34 lb in).
-
Tighten the fuel return pipe attaching screw (3) to ..............................5 N.m (44 lb in).
1. Connect the fuel feed pipe and return pipes (1) from the fuel rail.
2. Install the fuel fill cap.
3. Connect the negative battery cable.
4. Use the following procedure in order to inspect for leaks:
4.1.
Turn the ignition ON, with the engine OFF, for 2 seconds.
4.2.
Turn the ignition OFF for 10 seconds.
4.3.
Turn the ignition ON, with the engine OFF.
4.4.
Inspect for fuel leaks.
