Q: How to service and repaire the fuel pressure regulator and reassembling the fuel pump components on Scion tC?
A: Removal of fuel sender gauge assembly and disconnection of fuel pump harness are required to service the fuel pressure regulator. Taking care, remove the fuel suction plate and pump, without damaging it. Change O-ring of the regulator and reassemble and make sure the components are well secured and lubricated before it is finally installed.