Mopar 5184085AC Injector-Fuel

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To relieve the fuel system pressure, disconnect the negative battery cable. If working on a V6 engine, remove the upper intake manifold or the air intake tube/resonator for a 2015 and later 2.4L engine. Disconnect the fuel delivery line quick-connect fitting and the fuel delivery line from the fuel rail. Disconnect the fuel injector electrical connectors and detach the injector wiring harness mounting clips from the fuel rail. Remove the fuel rail mounting bolts and carefully pull up on the fuel rail to remove it along with the injectors. Remove the O-rings from each injector and replace them with new ones coated in clean engine oil. Ensure the injector is properly seated in the mounting pipe. Reinstall the fuel rail and injectors, tightening the retaining bolts to the specified torque. Start the engine and check for leaks at the quick-connect fitting and the upper end of each injector.

Coat the new O-rings with clean engine oil and install them on the injectors. Install the injectors into the fuel rail and secure with the injector clips. Guide the injectors/fuel rail assembly into the injector bores on the intake manifold and tighten the fuel rail mounting bolts. After installation, turn the ignition switch to On to activate the fuel pump and check for fuel leakage.

Detach the cable from the negative battery terminal.

No, it is not recommended to attempt this job at home. It is generally more cost-effective to have this job done by a dealer service department or a diesel specialist.

To replace the fuel injectors, start by relieving the fuel system pressure and disconnecting the negative battery terminal. For 3.6L V6 engines, remove the upper intake manifold. For 3.7L V6 and 4.7L V8 engines, remove the air intake duct and disconnect the fuel supply line. Label and disconnect any vacuum hoses and electrical connectors that may interfere with fuel rail removal. Remove the ignition coils and clean any debris around the injectors. Remove the fuel rail mounting bolts and gently rock the fuel rail to loosen the injectors. Remove the fuel rail and injectors as an assembly. For 5.7L and 6.4L HEMI engines, remove the engine cover and the air inlet tube. Disconnect the fuel supply line and the electrical connectors from the fuel injectors. Detach the PCV hose and the air make-up hose. Remove the fuel rail mounting bolts and carefully pull and wiggle the injectors to remove them. Remove the fuel rail and injectors as a single assembly. To remove an injector from the fuel rail, remove the injector retainer clip and pull the injector out. Replace the O-rings and lubricate them before installing the injector back into the fuel rail. Finally, reinstall the fuel rail and injectors, and check for fuel leakage.