Removal (3.5L)
- Relieve fuel pressure. See FUEL PRESSURE RELIEF . Disconnect negative battery cable. Remove injector sight shield. Remove fuel feed pipe quick connect fitting by squeezing tabs and pulling lines apart. Remove return pipe quick connecting fitting from fuel rail. Remove vacuum line from fuel pressure regulator.
- Remove crankcase ventilation valve hose. Remove throttle body vacuum port hose. Remove snap bracket on throttle body coolant tube. Remove engine electrical harness bolts from camshaft covers. Disconnect fuel injector harness connectors. Release 4 snap locking tabs on fuel rail assembly by pushing toward camshaft covers and lifting. Remove fuel rail assembly. See Figure. Remove injector-to-fuel rail retaining clip. Remove injector from fuel rail. Remove injector "O" rings and discard.