Installation Procedure

Fig 1: Identifying Positive Crankcase Ventilation (PCV) Crossover Pipe

Courtesy of GENERAL MOTORS CORP.

Lubricate the NEW fuel rail crossover pipe O-rings (4) with clean engine oil.
Install the NEW fuel rail crossover pipe O-rings (4) onto the crossover pipe (3).
Install the fuel rail crossover pipe (3) to the left and right hand fuel rails.
Install the fuel rail crossover pipe retainer clips (2).

NOTE: Refer to Fastener Notice in Cautions and Notices.

IMPORTANT: When installing the retaining clip screws for the fuel rail crossover pipe, always start the screws by hand. This will prevent stripping of the threads on the rail.

install the fuel rail retainer clip screws (1).
Tighten: Tighten the screws to 3.8 N.m (34 lb in).
Install the fuel fill cap.
Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
Use the following procedure in order to inspect for leaks:
1. Turn the ignition ON, with the engine OFF, for 2 seconds.
2. Turn OFF the ignition OFF for 10 seconds.
3. Turn ON the ignition ON, with the engine OFF.
4. Inspect for fuel leaks.