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Home >> Lexus >> 2006 >> GS 300 RWD >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel (3GR-FSE) >> High Pressure Side Fuel Pump >> Removal

High Pressure Side Fuel Pump: Removal

CAUTION: Do not allow fuel to spray when removing the pipe between the high pressure side fuel pump and the fuel injector. The fuel in the pipe is highly pressurized.
  1. DISCHARGE FUEL SYSTEM PRESSURE (see   1  ) 
  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
  3. REMOVE COOL AIR INTAKE DUCT SEAL (See  ON-VEHICLE INSPECTION  ) 
  4. REMOVE ENGINE UNDER COVER (See  ON-VEHICLE INSPECTION  ) 
  5. DRAIN ENGINE COOLANT (See  ON-VEHICLE INSPECTION  ) 
  6. REMOVE ENGINE ROOM SIDE COVER RH (See  ON-VEHICLE INSPECTION  ) 
  7. REMOVE V-BANK COVER (See  ON-VEHICLE INSPECTION  ) 
  8. DISCONNECT NO. 2 VENTILATION HOSE (See  ON-VEHICLE INSPECTION  ) 
  9. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE (See  ON-VEHICLE INSPECTION  ) 
  10. DISCONNECT COLD START INJECTOR (see  REMOVAL   ) 
  11. DISCONNECT WATER BYPASS HOSE (See  ON-VEHICLE INSPECTION  ) 
  12. DISCONNECT HEATER WATER INLET HOSE (see   12  ) 
  13. DISCONNECT HEATER WATER OUTLET HOSE (see   13  ) 
  14. REMOVE ENGINE REAR COVER (see   14  ) 
  15. DISCONNECT FUEL MAIN TUBE (see   17  ) 
  16. DISCONNECT UNION TO CHECK VALVE HOSE (see   15  ) 
  17. DISCONNECT VENTILATION HOSE (see   16  ) 
  18. REMOVE INTAKE AIR SURGE TANK (see   18  ) 
  19. REMOVE INTAKE MANIFOLD (see   19  ) 
  20. DISCONNECT NO. 1 FUEL PIPE (see   20  ) 
  21. REMOVE FUEL PRESSURE PULSATION DAMPER (see   5  ) 
  22. DISCONNECT NO. 2 FUEL PIPE 
    1. Disconnect the fuel high pressure side fuel pump connector.
    2. Fix the union bolt on the fuel pump side in place with a 21 mm wrench. Using a 19 mm union nut wrench, loosen the union and remove the fuel pipe.
      NOTE:
      • There must be absolutely no free play in the union on the fuel pump side.
      • If the union on the fuel pump side has free play, replace the fuel pump.
      Fig 1: Fixing Union Bolt On Fuel Pump Side
      G04018690Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the 2 bolts on the delivery pipe side.
      NOTE:
      • Do not remove the fuel pipe from the delivery pipe. Only remove the 2 bolts.
      • If the No. 2 fuel pipe is accidentally removed, replace its O-ring, No. 1 backup ring and No. 2 backup ring.
      Fig 2: Identifying Bolts On Delivery Pipe Side
      G04018691Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  23. REMOVE HIGH PRESSURE SIDE FUEL PUMP 
    1. Disconnect the fuel hose.
    2. Remove the 2 nuts, fuel pump and fuel pump insulator.
      Fig 3: Identifying Nuts, Fuel Pump And Fuel Pump Insulator
      G04018692Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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