Mopar 5016846AC Regulator-Fuel Pressure

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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.

The following procedure is only applicable to earlier style fuel pump/pressure regulator/sending unit assemblies with a removable fuel pressure regulator. Before attempting to remove the regulator, verify with a dealership parts department that the regulator is removable. If it is, follow the procedure below to replace the regulator. If it is not removable, the fuel pump and fuel pressure regulator must be replaced as a single assembly. The fuel pump/regulator assembly can be purchased without a new fuel level sending unit, allowing for the swapping of the old sending unit to the new assembly. Alternatively, the whole assembly, including a sending unit, can be purchased. To replace the regulator, first relieve the system fuel pressure and disconnect the negative battery terminal cable. Remove the fuel tank and then the fuel pump/regulator/sending unit assembly. Carefully pry the pressure regulator out of the assembly by spreading the retaining tabs apart. 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. The installation process is the reverse of removal.