Lexus 23220-31180 Fuel Pump

You can Select Your Vehicle to check if 23220-31180 fits your vehicle.

To prepare for the installation of the new fuel pump, clean engine oil should be poured into the fuel pump hole and the fuel pump lifter should be coated with oil.

To begin, remove the sending unit assembly from the fuel tank and drain any remaining gasoline from the pump/sending unit. Place the pump/sending unit on a clean workbench in a well-ventilated area. For 2007 and earlier models (except the 2007 RX 350), carefully pry off the end cap from the lower end of the fuel pump/sending unit assembly and remove the rubber insulator from the lower end of the fuel pump. Then, remove the fuel pump inlet strainer by disengaging the locking tabs with a pair of screwdrivers. Disconnect the fuel pressure regulator from the fuel return jet tube hose and fuel filter, and remove the fuel return jet tube assembly by pulling it out of the retainer clip. Disconnect the fuel pump electrical connector and remove the fuel pump from the fuel filter assembly. Separate the fuel filter housing from the upper part of the fuel pump assembly by disengaging the four locking tabs. Detach the fuel level sending unit from the upper part of the fuel pump assembly by disengaging the locking tangs from the lugs on the upper part of the pump.

Remove the engine cover and unscrew the banjo bolt securing the crossover line to the front fuel rail. Screw the adapter into the rail and connect the fuel pressure test hose.

Depress the release tab and pull up.

Disconnect the fuel supply line from the fuel rail and connect the gauge between the line and the rail using the T-fitting.

For 2007 RX 350 and all 2008 and later models, the components of the fuel pump assembly are modular and attached to the main housing. To remove the fuel level sending unit, disconnect the electrical connector and pry it from the clips. To remove the fuel pump, disconnect the electrical connector from the mounting flange, remove the spring E-clip, release the claw connectors from the sub-tank, separate the fuel suction support base, release the claw connectors and separate the fuel pump assembly, disconnect and remove the fuel pump electrical harness, and pull the fuel pump up and out from the filter assembly. Remove the O-ring and spacer from the fuel pump, and inspect the strainer for contamination.

Before installing the new fuel pump, a new O-ring should be placed onto the pump and the crankshaft should be rotated to the correct position.

Depress the release tab and pull up.