Sierra Classic 3500 4WD V8-6.0L (2007)
16. Remove the positive crankcase ventilation (PCV) hose.
17. Disconnect the fuel feed pipe (1) from the fuel rail.
18. Remove the fuel rail bolts.
NOTE:
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Remove the fuel rail assembly carefully in order to prevent damage to the injector electrical connector terminals and the injector spray tips.
Support the fuel rail after the fuel rail is removed in order to avoid damaging the fuel rail components.
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Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering open pipes and
