Toyota 23221-20040
Fuel Pump

The procedure for servicing and repairing the fuel pressure regulator starts with removing the rear seat cushion assembly and rear floor service hole cover with the butyl tape removal step as the initial requirement. Discharge the fuel system pressure through engine start-up followed by switching off the ignition when the engine stops. After that, separate the fuel pump connector. Check if the engine remains off by performing a second engine crank. After ensuring engine non-start you can take off the fuel tank cap to clear all pressure. Remove the wire from the wire connector followed by the cable removal from the negative battery terminal. Begin removal of the fuel vacuum suction assembly and gauge tube by disconnecting the fuel tank main tube but maintain the O-ring and clean all particles from the fuel tube joint. Extract the fuel suction with pump and gauge tube from the fuel tank after removing all bolts from the fuel tank protector plate and the fuel tank vent tube set plate while preserving the fuel pump filter from damage and avoiding the fuel sender gauge arm from bending. Pull the suction tube gasket out from the fuel suction and pump assembly through its tube. To install the components start by putting on a new gasket to the fuel suction with pump and gauge tube then return it to the tank space but maintain straight positions of both the fuel pump filter and gauge arm. The installation requires full insertion of the fuel tank vent tube set plate with six bolts tightened to 6.0 N.m (60 kgf.cm, 53 in.lbf) while the fuel tank protector plate requires two bolts at the same torque for secure installation. After the connection of fuel tank main tube verify that it is free from scratches and foreign materials and that the tube joint clip remains properly secured. The rear floor service hole cover requires new butyl tape for reinstallation while the wire-to-wire connector and fuel pump connector should be connected to the floor panel convexes. The negative battery terminal gets cable connection followed by initialization steps for disconnected systems and leak detection before returning the rear seat cushion.

Start fuel pressure regulator service by removing the fuel sender gauge assembly through the removal of its two claw fittings followed by sliding it out from the fuel filter. background chaos The fuel suction plate sub-assembly requires extraction through disconnection of connectors while utilizing a taped screwdriver to separate four claw fittings from all components yet keep the fuel suction plate protected. Start by moring away the fuel pump harness by unplugging the 2 terminals of the pump and removing the connector. Separating the 5 claws fittings with a taped-wrapped screwdriver will allow removal of the No. 2 fuel suction support but the technician must take care to protect the fuel suction support and fuel tank fuel filter from damage. Extract first the fuel pump cushion rubber from the fuel pump and then use fingertips to remove the entire fuel pump from the fuel filter. Usage of a small screwdriver enables users to detach the fuel pump filter from its clip before the pump filter reaches removal. The removal process for the fuel pressure regulator assembly requires pulling it out from the fuel tank fuel filter after extracting the O-ring. Staff should lubricate a new O-ring with spindle oil or gasoline before installing it into the fuel pressure regulator then pressing the regulator into position within the fuel tank fuel filter while checking for O-ring damage. After installing the fuel pump filter onto the pump, users should place a new clip on it to secure it. A thin layer of gasoline or spindle oil should be applied to the O-ring before inserting the fuel pump into the fuel tank fuel filter while checking that the O-ring is not broken or stuck. During installation position the claw points correctly on the cushion rubber before fixing the rubber onto the fuel pump and adding the No. 2 fuel suction support to the fuel filter. The installation of 2 pump harness terminals should be followed by connecting the pump harness connector. Apply gasoline or spindle oil with a thin layer to the O-ring in the fuel suction plate before placing it onto the fuel filter while checking that the O-ring remains undamaged inside its claws then attach the fuel test harness. The last step involves fitting the fuel sender gauge into its claw positions.