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Home >> Lexus >> 2014 >> IS 350 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 53 (Fuel System (8AR-FTS) - Service Information) >> FUEL PUMP (for High Pressure) >> Removal [08/2015 - ] >> Procedure

Removal [08/2015 - ]: Procedure

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  1. PRECAUTION 
    NOTE:

    After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.

    Refer to PRECAUTION [08/2015 - 10/2016] , or refer to PRECAUTION [10/2016 - 10/2017] , or refer to PRECAUTION [10/2017 - 09/2020] , or refer to PRECAUTION [09/2020 - ]

  2. DISCHARGE FUEL SYSTEM PRESSURE 

    Refer to PRECAUTION [08/2015 - 09/2020] , or refer to PRECAUTION [09/2020 - ]

  3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    NOTE:

    When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

    Refer to INITIALIZATION [08/2015 - 10/2016] , or refer to INITIALIZATION [10/2016 - 10/2017] , or refer to INITIALIZATION [10/2017 - 09/2020] , or refer to INITIALIZATION [09/2020 - 11/2021] , or refer to INITIALIZATION [11/2021 - 09/2022] , or refer to INITIALIZATION [09/2022 - 10/2023] , or refer to INITIALIZATION [10/2023 - ]

  4. REMOVE INTAKE MANIFOLD 

    Refer to REMOVAL [08/2015 - ]

  5. DISCONNECT FUEL TUBE SUB-ASSEMBLY 
    NOTE:

    Remove any foreign matter on the fuel tube connector and fuel pipe before performing this work.

    1. Disconnect the fuel tube sub-assembly from the fuel pump assembly.
      1. Pull out the retainer to disengage the lock claws and pull off the fuel tube connector.
        GTY685659Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        *a Retainer
        *b Fuel Tube Connector
        *c Nylon Tube
        *d O-ring
        *e Fuel Pipe
        Pull out
        Pull off
        NOTE:

        Be sure to disconnect the fuel tube connector by hand.

      2. If the fuel tube connector and fuel pipe are stuck, push and pull the fuel tube connector to release it. Pull the fuel tube connector off of the fuel pipe carefully.
        NOTE:
        • Be sure to disconnect the fuel tube connector by hand.
        • Do not scratch or allow any foreign matter to get on the parts when disconnecting them as the fuel tube connector has O-rings that seal the pipe (fuel pipe).
        • Do not bend, twist, pinch or kink the nylon tube.
      3. Check that there is no foreign matter on the sealing surfaces of the disconnected fuel lines. Clean them if necessary.
      4. Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.
  6. REMOVE NO. 1 FUEL PIPE SUB-ASSEMBLY 
    NOTE:

    There are 2 types of No. 1 fuel pipe sub-assemblies.

    1. Using a 17 mm union nut wrench, loosen the 2 union nuts of the No. 1 fuel pipe sub-assembly.
      GTY638994Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Loosen the 2 bolts.
      GTY639001Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the No. 1 fuel pipe sub-assembly from the fuel delivery pipe sub-assembly and fuel pump assembly.
  7. REMOVE FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY 
    1. Disconnect the fuel pump assembly connector.
      GTY638906Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 bolts and fuel pump assembly from the cylinder head cover sub-assembly.
      GTY638905Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the fuel pump lifter guide and fuel pump lifter assembly from the fuel pump assembly.
      GTY628919Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Fuel Pump Assembly
      *2 Fuel Pump Lifter Assembly
      *3 Fuel Pump Lifter Guide
    4. Remove the O-ring from the fuel pump assembly.
      GTY635886Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Remove the fuel pump spacer gasket from the cylinder head cover sub-assembly.
      GTY618189Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Fuel Pump Spacer Gasket
      *2 O-ring
    6. Remove the 2 O-rings from the No. 4 camshaft bearing cap.