i-290 2WD L4-2.9L (2008)
5. Disconnect the engine wiring harness electrical connector from the fuel injector harness electrical connector (1).
6. Before removal, clean the fuel rail assembly and the cylinder head 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.
7. Remove the fuel rail bolts.
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.
8. Remove the fuel rail from the cylinder head.