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.