Sierra 1500 4WD V8-6.0L (2007)
5. Ensure the fuel injector lower O-ring seals are adequately lubricated, if not lubricate the fuel injector lower O-ring seals with clean engine oil.
6. Position the fuel rail onto the intake manifold.
7. Firmly push down on both the centers of the left and right fuel rails, until the rails are fully seated against the intake manifold.
Notice: Refer to Fastener Notice.
Important: Push down firmly on both sides of the rail until all injectors have been seated into their bores.
8. Install the fuel rail bolts.
Tighten the bolts to 10 N.m (89 lb in).
9. Install the EVAP tube and purge solenoid.
10. Install the EVAP canister purge solenoid to the fuel rail bracket and engage the retainer.
11. Connect the chassis EVAP tube quick connect fitting at the EVAP canister purge solenoid.
12. Connect the EVAP tube quick connect fitting at the intake manifold.
