Q: How to remove fuel injectors and Fuel Rail on Chevrolet Equinox and GMC Terrain?
A: To remove the fuel injectors, start by relieving the fuel system pressure and disconnecting the cable from the negative battery terminal. Then, remove the upper intake manifold and disconnect the fuel supply line at the fuel rail. Disconnect the electrical connector for the main fuel injector harness, as well as the electrical connectors for the coolant temperature and camshaft position sensors. Release the fuel injector retaining clips and withdraw each injector from its bore in the fuel rail, discarding the upper and lower O-rings. For installation, coat the new upper O-rings with clean engine oil and slide them into place on each injector.