Envoy 2WD V8-5.3L VIN M (2005)
Fuel Rail: Service and Repair
Fuel Rail Crossover Pipe Replacement
FUEL RAIL CROSSOVER PIPE REPLACEMENT
REMOVAL PROCEDURE
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedure.
2. Remove the fuel rail crossover pipe retaining clip screws (1) and retainer clips (2).
3. Remove the crossover pipe (3) from the left and right hand fuel rails.
4. Remove and discard the crossover fuel pipe O-rings (4).
INSTALLATION PROCEDURE
1. Lubricate the NEW fuel rail crossover pipe O-rings (4) with clean engine oil.
2. Install the NEW fuel rail crossover pipe O-rings (4) onto the crossover pipe (3).
3. Install the fuel rail crossover pipe (3) to the left and right hand fuel rails.
4. Install the fuel rail crossover pipe retainer clips (2).
5. install the fuel rail retainer clip screws (1).
NOTE: Refer to Fastener Notice in Service Precautions.
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.
Tighten the screws to 3.8 N.m (34 lb in).
6. Install the fuel fill cap.
