STS RWD V8-4.6L (2007)
Fuel Rail: Service and Repair
Fuel Injector and Fuel Rail Replacement
Removal Procedure
Notice:
* 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.
* 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
passages.
1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief.
2. Remove the cross vehicle brace.
3. Clean the fuel rail assembly with a spray type engine cleaner, GM X-30A or equivalent, if necessary. Follow the package instructions. Do not soak
the fuel rail in liquid cleaning solvent.
4. Disconnect the fuel feed hose/pipe (1) from the fuel rail.
5. Remove the positive crankcase ventilation (PCV) dirty air hose.
