Toyota 23270-50010 Damper Assy, Fuel Pressure Pulsation

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To remove the fuel pump pulsator, start by relieving the fuel system pressure. Disconnect the negative battery terminal cable and remove the engine cover. Remove the retaining clip of the pulsator and pull it out of the fuel rail. Replace the old O-ring with a new one. For installation, follow the reverse order of removal. To reinstall the pulsator, unscrew it from the fuel rail and discard the sealing washers. Always replace these washers before installing the pulsator. Finally, install the pulsator following the reverse steps and ensure proper torque specifications.

To remove and replace the Fuel Pump Pulsator, first remove the engine cover and relieve the fuel system pressure. For 1GR-FE models, remove the clip from the Fuel Pump Pulsator and pull it out of the fuel rail. Remove the old O-ring and discard it. Installation is the reverse, using a new O-ring and applying a light coat of oil. For 2UZ-FE models, unscrew the Fuel Pump Pulsator, remove the fuel supply line banjo fitting, and discard the old sealing washers. Installation is the reverse of removal.

The first step is to relieve the fuel system pressure and disconnect the negative battery cable.

Disconnect the vacuum hose from the fuel pressure regulator and loosen the fuel return hose clamp to disconnect the fuel return hose.

After removing the pulsation damper in 2UZ-FE models, you should discard the old sealing washers.

Disconnect the negative battery cable.