Envoy 2WD V8-5.3L (2007)
Caution: The fuel rail stop bracket must be installed onto the engine assembly. The stop bracket serves as a protective shield for the fuel rail in
the event of a vehicle frontal crash. If the fuel rail stop bracket is not installed and the vehicle is involved in a frontal crash, fuel could be
sprayed possibly causing a fire and personal injury from burns.
1. Lubricate the NEW lower injector O-ring seals with clean engine oil.
2. Install the NEW O-ring seals onto each injector.
3. Install the fuel rail (1).
Notice: Refer to Fastener Notice.
4. Apply a 5 mm (0.2 in) band of threadlock GM P/N 12345382 (Canadian P/N 10953489) or equivalent, to the threads of the fuel rail bolts (2 and
3).
5. Install the fuel rail bolts (2 and 3).
