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Home >> Toyota >> 2020 >> Avalon Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Fuel System (Service Information) [A25A-FKS]) >> FUEL PUMP (for High Pressure) >> Removal [08/2020 - ] >> Procedure

Removal [08/2020 - ]: 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.

  2. DISCHARGE FUEL SYSTEM PRESSURE 

    Refer to PRECAUTION [08/2020 - ]

  3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 

    Refer to PROCEDURE - Step 2

  4. REMOVE INTAKE MANIFOLD 

    Refer to REMOVAL [08/2020 - ]

  5. DISCONNECT FUEL TUBE SUB-ASSEMBLY 
    1. Disconnect the fuel tube sub-assembly from the fuel pump assembly.

      Refer to PRECAUTION [08/2020 - ]

      GTY947748Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. REMOVE NO. 1 FUEL PIPE SUB-ASSEMBLY 
    WARNING:

    To prevent serious injury due to fuel spray from the high-pressure fuel lines, always discharge fuel system pressure before removing any fuel system components.

    1. Remove the 2 bolts and fuel pump protector from the cylinder head sub-assembly.
      GTY948118Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the ignition coil connector.
      GTY947749Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Using a 17 mm union nut wrench, loosen the 2 union nuts of the No. 1 fuel pipe sub-assembly.
      GTY947869Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Union Nut
      Bolt
    4. Using an 8 mm socket wrench, remove the bolt.
    5. Loosen the 2 bolts of the fuel pump assembly.
      GTY947747Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    6. Remove the No. 1 fuel pipe sub-assembly from the fuel delivery pipe and fuel pump assembly.
  7. REMOVE FUEL (ENGINE ROOM SIDE) PUMP ASSEMBLY 
    NOTE:

    When replacing the fuel pump assembly, it is necessary to replace the No. 1 fuel pipe sub-assembly with a new one.

    1. Disconnect the fuel pump assembly connector.
      GTY947753Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 bolts, fuel pump assembly and fuel pump flange from the cylinder head cover sub-assembly.
      GTY947754Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the O-ring from the fuel pump assembly.
      GTY754529Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the fuel pump lifter assembly from the fuel pump lifter guide.
      GTY754533Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Remove the fuel pump spacer gasket from the cylinder head cover sub-assembly.
      GTY754534Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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