Jeep 5184085AD Injector-Fuel

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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.

Place new O-rings on the injector and a new O-ring on the injector cap. Coat the O-rings with a light film of engine oil. Insert the injector into the throttle body and place the injector cap onto it, aligning them properly. Rotate the cap and injector to line up the attachment hole, then tighten the screws securely. Reconnect the negative battery cable, start the engine, and check for leaks. Finally, turn off the engine and reinstall the air cleaner assembly.

Remove the fuel rail assembly and place the fuel rail assembly on a clean work surface so the fuel injectors are accessible. Remove the injector lock ring from the fuel rail and injector by prying it off with a small screwdriver. Pull the injector straight out of the receiver cup. Inspect the injector O-rings for damage. Replace them with new ones if necessary (Push the new O-ring over the tip of the injector and into the groove Insert a small screwdriver under the 0-ring and pry it off - be careful not to damage the injector tip). Prior to installation, lubricate the O-rings with a light film of clean engine oil. Push the top of the injector straight into the fuel rail receiver cup, taking care not to damage the O-ring. Slide the open end of the injector clip into the top slot of the injector, onto the receiver cup ridge and into the side slots of the clip. Install the fuel rail.

Remove the throttle body upper and lower bonnets. Detach the injector connector by compressing the lock tabs and lifting up. Remove the retainer and gently pry the center collar of the injector to remove it. Discard the centering ring and upper and lower O-rings. Lubricate and install the replacement O-rings and centering ring. Align the injector with the housing and install it, followed by the retainer. Attach the injector connector and reinstall the bonnets.

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.

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.

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.