Removal (Tacoma & Tundra 3.4L)
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2003 Toyota Tundra, 2003 Toyota Tacoma, 2003 Toyota Sienna, 2003 Toyota Sequoia, and 2003 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
- Air intake chamber and intake air connector must be removed for access to fuel pressure regulator. See Figure.
- Release fuel pressure. See FUEL SYSTEM PRESSURE RELEASE .
- Drain cooling system.
- Remove air cleaner hose.
- Remove bolts and air intake chamber support brace from air intake chamber.
- Disconnect necessary electrical connectors, control cables, vacuum hoses and coolant hoses for removal of air intake chamber with throttle body. See Figure.
- Remove bolts/nuts, air intake chamber and gasket.
- Disconnect necessary electrical connectors, ground straps, vacuum hoses and wiring brackets for removal of intake air connector. See Figure.
- Remove bolts/nuts, intake air connector and gasket.
- Remove protector from engine wiring harness and lift engine wiring harness upward for access to fuel pressure regulator. Fuel pressure regulator is located at firewall end of driver's side fuel rail. See Fig 1.
- Place shop towel below fuel pressure regulator to absorb any gasoline.
- Disconnect hose and fuel return hose from fuel pressure regulator.
- Remove bolts and fuel pressure regulator with "O" ring from fuel rail. Remove "O" ring from fuel pressure regulator.