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Home >> Toyota >> 2007 >> Sequoia Limited, RWD >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Engine Fuel System >> Fuel Injector >> Removal

Fuel Injector: Removal

  1. DISCHARGE FUEL SYSTEM PRESSURE 

    (See FUEL SYSTEM  )

  2. REMOVE THROTTLE BODY COVER 
  3. REMOVE INTAKE AIR CONNECTOR ASSEMBLY 
  4. REMOVE FUEL PRESSURE PULSATION DAMPER 
    1. Remove the pulsation damper, upper gasket, fuel main hose and lower gasket.
      NOTE:
      • Put a shop rag under the delivery pipe. 
      • Slowly loosen the pulsation damper. 
      • Fig 1: Removing Fuel Pressure Pulsation Damper
        G04507436Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. DISCONNECT PCV HOSE FROM PCV VALVE 
  6. DISCONNECT VSV FOR EVAP 
    1. Disconnect the VSV connector for EVAP.
    2. Disconnect the EVAP hose.
    3. Remove the VSV for EVAP from the intake manifold.
      Fig 2: Removing VSV For EVAP From Intake Manifold
      G04507437Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE THROTTLE BODY COVER BRACKET 
    1. Remove the bolt and throttle body cover bracket.
  8. DISCONNECT ENGINE WIRE 
    1. Disconnect the engine wire clamps from the No.1 engine hanger and engine wire bracket.
    2. Disconnect the 2 wire clamps on the engine wire from the brackets on the RH delivery pipe.
    3. Fig 3: Disconnect Wire Clamps On Engine Wire From Brackets On RH Delivery Pipe
      G04507438Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE DELIVERY PIPE AND INJECTOR 
    NOTE:
    • Be careful not to drop the injectors when removing the delivery pipes. 
    • Do not apply any load to the injector in horizontal direction. 
    1. Remove the bolt holding the clamp on the fuel return pipe to the LH delivery pipe.
    2. Fig 4: Removing Bolt Holding Clamp On Fuel Return Pipe To LH Delivery Pipe
      G04507439Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the bolt, 2 union bolts, 4 gaskets and front fuel pipe.
    4. Disconnect the 8 injector connectors.
    5. Remove the 4 nuts holding the delivery pipes to the lower intake manifold.
    6. Remove the 2 delivery pipes, 8 injectors, and 8 insulators.
    7. Remove the O-ring and grommet from each injector.