LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2003 >> GX 470 >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls Removal & Installation >> Fuel System >> Fuel Injector Assembly >> Removal
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fuel Injector Assembly: Removal

  1. Perform fuel system pressure release. See FUEL SYSTEM PRESSURE RELEASE .
  2. Remove 2 cap nuts and engine cover. See Fig 1.
  3. Disconnect vacuum hoses and ventilation hose. Remove air cleaner hose assembly.
  4. Remove 2 union bolts and 4 gaskets. Remove bolts and fuel pipe sub-assembly.
  5. Remove 3 bolts and disconnect fuel return pipe sub-assembly from fuel pressure regulator. See Fig 2. Move to side.
  6. Remove pulsation damper and 2 gaskets. Disconnect fuel hose No. 1. See Fig 3.
  7. Remove bolts and separate vacuum switching valve assembly from intake manifold.
  8. Disconnect 8 fuel injector connectors. Remove 3 bolts and disconnect engine wire.
  9. Remove 2 nuts and pull fuel delivery pipe straight upward holding both ends.
  10. Remove 2 nuts and pull fuel delivery pipe No. 2 straight upward holding both ends.
  11. Remove injector from delivery pipe. DO NOT put any force on injector in horizontal position as "O"ring may be stuck. Remove "O" ring, grommet and insulator from injector.
Fig 1: Locating Fuel Injector Assembly Components
G00251313Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Separating Fuel Pipe Sub-Assembly
G00251314Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: Disconnecting Fuel Hose
G00251315Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
scientia non olet · About LEMON Manuals