Envoy 4WD V8-5.3L VIN M (2005)
15. Disconnect the fuel feed pipe (1) from the fuel rail.
16. Remove the EVAP canister purge solenoid from the fuel rail.
17. Remove the fuel rail bolts (2 and 3).
18. Loosen but do not remove the fuel rail crossover pipe retainer clip screws.
19. Remove the fuel rail assembly (1).
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
passages.
IMPORTANT: Before removal, clean the fuel rail 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.
20. Remove the fuel injector lower O-ring seal (4) from each injector, if necessary.
21. Discard the O-ring seals.
22. If the fuel rail is not being replaced, go to the Installation Procedure.
DISASSEMBLY PROCEDURE
