Q: How do you remove fuel injectors and Fuel Rail for Buick Enclave,Chevrolet Traverse and GMC Acadia?
A: To remove the fuel injectors, relieve the fuel system pressure, disconnect the negative battery terminal, remove the upper intake manifold, and disconnect the fuel supply line and electrical connectors for the main fuel injector harness and each injector. Remove the fuel rails and injectors as an assembly, and release the fuel injector retaining clips to remove each injector. To install the fuel injectors, install the new upper and lower O-rings on the injectors, coat them with clean engine oil, insert them into the fuel rail and install the injectors and fuel rail assembly onto the intake manifold, tighten the mounting bolts, and reconnect the negative battery terminal.