Kia 353202G740 High Pressure Pump

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Disconnect the fuel pump and fuel gauge sending unit from the assembly. Loosen the clamps and remove the hose connecting the pump outlet pipe. Remove the inlet filter and the small bracket at the bottom of the pump. Remove the rubber mount and the large rubber band securing the pump. Discard the old pump assembly sealing ring and replace it. Remove the fuel gauge sending unit and disengage the ground wire receptacle. Disconnect the fuel pump electrical connector and outlet hose. Detach the wiring harness clip and pull apart the fuel pump assembly. Remove the cover, pump, rubber insulators, inlet filter, and fuel pressure regulator. Install new 0-rings on the regulator. Remove the old fuel filter, regulator or sending unit, and install the new ones. Remove the rear seat cushion, carpeting, access cover, and disconnect the electrical connector. Remove the sub fuel sender from the fuel tank.

Apply engine oil to the high-pressure pump 0-ring and set the pump on the cylinder head.

Inspect the fuel pump inlet strainer for contamination. If it's dirty, try cleaning the strainer with some clean solvent and an old toothbrush. If the strainer is too dirty to be cleaned while it's installed, remove it from the fuel pump/fuel level sending unit and try cleaning it again. If you still can't clean it adequately, replace it.

Drain any residual gasoline from the fuel pump/fuel level sending unit, then place it on a clean workbench in a well-ventilated areCheck the strainer for clogging and replace it if necessary.

When turning the ignition switch to ON, a brief whirring noise should emanate for about two seconds as the pump activates and pressurizes the system.

Remove the access cover screws and remove the cover, then disconnect the fuel supply line and suction line quick-connect fittings from the pump, remove the bolts from the fuel pump mounting flange and remove the pump assembly from the fuel tank.