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"O" rings with clean engine oil. Position fuel rail into intake
manifold housing. Push down on rail to seat injectors in manifold
housing. Tighten fuel rail assembly and bracket bolts to
specification. See TORQUE SPECIFICATIONS. To complete installation,
reverse removal procedure.
Removal (5.7L)
1) Relieve fuel pressure. See
FUEL SYSTEM PRESSURE RELEASE (GASOLINE). Disconnect negative battery
cable. Remove resonator and resonator bracket. Disconnect quick-
connect fitting at fuel rail inlet and return lines.
2) Disconnect accelerator cable from throttle body and
accelerator cable bracket. Move accelerator cable aside. Disconnect
vacuum hose at pressure regulator. Remove vacuum lines (mark for
installation reference) as necessary to gain access to fuel rail and
fuel lines. Remove electrical harness from routing clips on fuel rail.
3) Remove fuel line retaining bolt. Disconnect harness
connectors from injectors. Remove fuel rail retaining bolts. Remove
fuel rail from intake manifold using equal force on both sides of fuel
rail. See Fig. 25. Remove injector-to-fuel rail retaining clip. Remove
injector from fuel rail. Remove injector "O" rings and discard.
Installation
To install, reverse removal procedure. Lubricate NEW injector
"O" rings with clean engine oil. Install injector-to-fuel rail
retaining clip on right side of injector harness connection. Position
fuel rail onto intake manifold. Push down on rail to seat injectors in
manifold. Tighten fuel rail retaining bolts. See TORQUE SPECIFICATIONS
. To complete installation, reverse removal procedure.
Fig. 14:
Locating Fuel Rail Assembly Components (1.8L)
Courtesy of General Motors Corp.
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