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(15) Remove fuel rail (with injectors attached) from engine. (16) If fuel injectors are to be removed, refer to Fuel Injector Removal/Installation. INSTALLATION (1) If fuel injectors are to be installed, refer to Fuel Injector Removal/Installation. (2) Apply a small amount of engine oil to each fuel injector o-ring. This will help in fuel rail installation. (3) Position fuel rail/fuel injector assembly to machined injector openings in cylinder head. (4) Guide each injector into cylinder head. Be care- ful not to tear injector o-rings. (5) Push right side of fuel rail down until fuel injectors have bottomed on cylinder head shoulder. (6) Install 4 fuel rail mounting bolts and tighten to 27 N·m (20 ft. lbs.). (7) Install ignition coils. Refer to Ignition Coil Removal/Installation. (8) Connect electrical connectors to throttle body. sensors. (10) Connect electrical connectors at all fuel injec- tors. To install connector, refer to (Fig. 35). Push con- colored slider (2). Verify connector is locked to injec- (11) Connect vacuum lines to throttle body. fuel rail. Refer to Quick-Connect Fittings. (13) Connect wiring to rear of generator. FUEL INJECTOR(S) WARNING: THE FUEL SYSTEM IS UNDER A CON- BEFORE SERVICING FUEL INJECTOR(S), FUEL SYSTEM PRESSURE MUST BE RELEASED. To release fuel pressure, refer to Fuel System Pres- sure Release Procedure. To remove one or more fuel injectors, fuel rail assembly must be removed from engine. REMOVAL (1) Remove air cleaner assembly. Fuel Injector Rail Removal/Installation in this group. (3) Remove clip(s) retaining the injector(s) to fuel rail (Fig. 32) or (Fig. 33). (4) Remove injector(s) from fuel rail. INSTALLATION (1) Apply a small amount of clean engine oil to each fuel injector o-ring. This will help in fuel rail (2) Install injector(s) and injector clip(s) to fuel rail. (3) Install fuel rail assembly. Refer to Fuel Injector Rail Removal/Installation. (4) Install air cleaner. FUEL TANK WARNING: THE FUEL SYSTEM IS UNDER A CON- Two different procedures may be used to drain fuel tank (removing fuel vent hose at fuel tank or using The quickest draining procedure involves removing fuel vent hose at fuel tank. As an alternative procedure, the electric fuel pump may be activated allowing tank to be drained at fuel Fig. 35 Remove/Install Injector Connector—4.7L V-8 Engine 14 - 20 FUEL SYSTEM DN REMOVAL AND INSTALLATION (Continued) |