Chrysler 5016846AB Regulator-Fuel Pressure

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To replace the fuel pump/fuel pressure regulator/Fuel Level Sensor, start by relieving the system fuel pressure and disconnecting the negative battery terminal. Then, remove the fuel tank and disconnect the fuel delivery line quick-connect fitting and electrical connector from the assembly. Before removing the assembly, make alignment marks on the mounting flange and fuel tank for correct realignment during installation. Loosen the locknut securing the assembly using a brass punch and hammer, and carefully lift it from the fuel tank, being mindful of the float arm and fuel pump inlet strainer. Inspect the inlet strainer and clean or replace if necessary. Finally, reinstall the assembly and tighten the locknut securely.

Inspect the inlet strainer and clean or replace if necessary.

Using two flare nut or open end wrenches, loosen the return tube nut and install the fuel pressure dampener. Ensure that the fuel return tube nut is securely tightened.

Verify with a dealership parts department that the regulator is removable.

If replacing the regulator, use new O-rings during installation. If reusing the old regulator, replace the upper and lower O-rings with new ones. Do not install a new or used regulator with old O-rings. Coat the new O-rings with clean gasoline during installation.

After installing the new parts, the negative battery cable should be reconnected, and a thorough check for fuel leaks should be conducted. Finally, the air cleaner assembly can be installed.

Disconnect the cable from the negative battery terminal.