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Home >> Lexus >> 2014 >> IS 350 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 83 (Fuel System (4GR-FSE) - Service Information) >> FUEL PUMP (for High Pressure) >> Removal [04/2013 - 08/2015] >> Procedure

Removal [04/2013 - 08/2015]: Procedure

WARNING: This page is about a different car, the 2015 Lexus IS 250 and 2014 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
  1. DISCHARGE FUEL SYSTEM PRESSURE 

    Refer to PRECAUTION [04/2013 - 08/2015]

  2. PRECAUTION 
    NOTE:

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

    Refer to PRECAUTION [04/2013 - 08/2015]

  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 [04/2013 - 06/2014] , or refer to INITIALIZATION [06/2014 - 08/2015]

  4. REMOVE INTAKE MANIFOLD 

    Refer to REMOVAL [04/2013 - 08/2015]

  5. REMOVE NO. 3 WATER BY-PASS PIPE 
    1. Slide the 2 clips and disconnect the inlet heater water hose A and outlet heater water hose A from the No. 3 water by-pass pipe.
      GTY395809Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the wire harness clamp from the No. 3 water by-pass pipe.
    3. Remove the bolt.
    4. Slide the 2 clips and disconnect the No. 8 water by-pass hose, No. 9 water by-pass hose and remove the No. 3 water by-pass pipe.
  6. REMOVE FUEL PRESSURE PULSATION DAMPER ASSEMBLY 

    See step  7

  7. REMOVE NO. 1 FUEL PIPE SUB-ASSEMBLY 
    1. Slide the clip and disconnect the No. 3 fuel hose from the No. 1 fuel pipe sub-assembly.
      GTY470643Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Slide the clip and disconnect the No. 1 fuel hose from the fuel relief valve assembly.
      GTY462965Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Slide the clip and disconnect the No. 2 fuel hose from the fuel pump assembly.
    4. Remove the 2 bolts and No. 1 fuel pipe sub-assembly.
  8. DISCONNECT NO. 2 FUEL PIPE SUB-ASSEMBLY 
    1. Disconnect the fuel pump connector.
    2. Using a 21 mm wrench, secure the union bolt on the fuel pump side in place. Using a 19 mm union nut wrench, loosen the union nut and remove the No. 2 fuel pipe sub-assembly.
      GTY461734Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a 19 mm Union Nut Wrench
      *b Hold
      *c Turn
      NOTE:
      • There must be absolutely no free play in the union bolt on the fuel pump assembly side.
      • If the union bolt on the fuel pump assembly side has free play, replace the fuel pump assembly.
    3. Remove the 2 bolts on the fuel delivery pipe sub-assembly side.
      NOTE:
      • Do not remove the No. 2 fuel pipe sub-assembly from the fuel delivery pipe sub-assembly. Only remove the 2 bolts.
      • If the No. 2 fuel pipe sub-assembly is accidentally removed, replace its O-ring, No. 1 back-up ring and No. 2 back-up ring.
      GTY139633Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE FUEL PUMP ASSEMBLY 
    1. Remove the 2 nuts, fuel pump assembly and fuel pump insulator from the cylinder head sub-assembly.
      GTY470016Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE NO. 2 FUEL PIPE SUB-ASSEMBLY 
    1. Remove the No. 2 fuel pipe sub-assembly from the fuel delivery pipe sub-assembly.
      GTY467380Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

      Pull and remove the No. 2 fuel pipe sub-assembly in a straight line to avoid damage to the seal surface of the fuel delivery pipe sub-assembly O-ring.

    2. Remove the O-ring, No. 1 back-up ring, No. 2 back-up ring, No. 3 back-up ring and E-ring from the No. 2 fuel pipe sub-assembly.
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