Q: What are the procedures to service and repair the fuel pressure regulator and reinstall the fuel pump assembly on Toyota RAV4?
A: In order to service the fuel pressure regulator, disassemble the fuel tank assembly and main tube including the cleanliness of the O-rings. De-fuel the air suction apparatus, and disconnect the fuel hose, the fuel suction apparatus and the sub-tank. Rebuilding parts, ensuring that new O-rings are covered with gasoline, and sticking all the parts together, without causing any damages.