Toyota 23221-46010 Fuel Pump Assembly

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To remove the fuel pump first the fuel system pressure must be released. This is done by connecting the cable on one side to the positive terminal of the battery then touching the other end on the negative terminal of the car's battery Ignition should be off and head unit should be disconnected from its antitheft system if it has one, before connecting the cable to the negative terminal of the battery. Next, one should take off the fuel tank of the vehicle and, further, disconnect the electrical connector in addition. Move on to take off the fuel pump connectors, then pry out the fuel pump/sending unit by unscrewing the necessary bolts on the fuel tank. Slowly and gently pull up the assembly away from the fuel tank in such a manner that does not harm the inlet screen or the float arm. Loosen the upper end of the fuel pump by prying at the lower end of the fuel pump so that it is not tightly wedged to the bracket, then take off the gasket located at the cover of the fuel pump assembly and put in a new gasket so that there is no leakage. Pull the rubber cushion and clip that hold the inlet screen to the pump, and take out the screen checking whether it is contaminated and putting in a new one in its place if needed. During reassembly, if only the inlet screen is being replaced, set the new screen in place, together with the clip and rubber cushion, then move the low end of the pump back into the bracket and fasten the component back into the fuel tank along with the pump/sending unit assembly. If changing the fuel pump, unbolt the nut at the top of the fuel pump inlet hose and detach it from the hose and then unscrew the wires from the fuel pump terminals, and then remove the fuel pump. To reinstall, proceed in the reverse of the removal procedure where in case of reversal banjo fittings, new sealing washers must be fitted on the either side of the banjo fitting, and then tighten the fitting bolt to the recommended torque.

To replace the fuel pump in a car, first relieve the fuel system pressure and disconnect the cable from the negative terminal of the battery. For mechanical pump (carbureted models), relieve the fuel tank pressure by removing the fuel filler cap. Locate the fuel pump mounted on the left rear corner of the cylinder head and disconnect the hoses from the pump, plugging them immediately to prevent fuel leakage. Unscrew the fasteners that retain the pump to the cylinder head, inspect the fuel pump arm for wear, and coat it with clean engine oil before installing it. Use a gasket scraper or putty knife to remove old gasket material from the mating surfaces on the cylinder head and fuel pump. For electric pump (fuel-injected models), remove the fuel tank cap and disconnect the cable from the negative terminal of the battery. On 1990 models, remove the fuel tank and place it on a workbench. Remove the fuel pump assembly retaining bolts from the top of the fuel tank and carefully withdraw the fuel pump assembly. Pull the lower end of the fuel pump loose from the bracket and remove the rubber cushion. Remove the clip securing the filter to the pump and inspect the filter for contamination. Replace the filter if necessary. If only replacing the fuel pump filter, install the new filter, clip, and rubber cushion, and push the lower end of the pump back into the bracket. If replacing the fuel pump, loosen the hose clamp at the upper end of the pump, disconnect the pump from the hose, disconnect the wires from the pump terminals, and remove the pump. Installation is the reverse of removal.

Disconnect the wires from the pump terminals and remove the pump.

Remove the fuel tank cap to relieve any pressure that has built up in the tank.

On OBD I models (1994 2.4L, 2.7L, and 1993-1994 3.0L V6 engines), bridge terminals +B and FP of the test connector with a jumper wire. On OBD II models, use the ignition key to activate the fuel pump.

Use a fuel pressure gauge with a banjo fitting. - Attach the gauge and measure the fuel pressure, comparing it to the specifications. - If the pressure is not as specified, check for restricted fuel return lines or replace the pressure regulator.

it is just the pump, nothing else I will email diagrams of the other parts the gasket is 77169-60010