LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2018 >> GS 350 Base, AWD >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> Fuel System - Service Information >> Fuel Pump >> Disassembly [10/2015 - ] >> Procedure

Disassembly [10/2015 - ]: Procedure

  1. REMOVE FUEL SENDER GAUGE ASSEMBLY 

    See step  2 (10/2015 - 09/2016) or step  2 (09/2016 -)

  2. REMOVE NO. 1 FUEL SUB-TANK 
    1. Disconnect the 2 fuel pump connectors.
      GTY660227Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Detach the fuel pump wire harness clamp.
    3. Using needle nose pliers, remove the fuel tank pipe setting holder.
      GTY660226Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Using a screwdriver, detach the 2 claws and disconnect the jet pump nozzle.
      GTY660225Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      Tape the screwdriver tip before use.

    5. Using a screwdriver, remove the jet pump from the No. 1 fuel sub-tank.
      GTY623057Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Protective Tape
      NOTE:

      The O-ring is installed firmly between the jet pump and No. 1 fuel sub-tank. Therefore, the jet pump and No. 1 fuel sub-tank should be separated carefully using a screwdriver.

      HINT: 

      Tape the screwdriver tip before use.

    6. Detach the 2 claws and remove the fuel filter from the No. 1 fuel sub-tank.
      GTY660224Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Remove the spring from the fuel suction plate sub-assembly.
      GTY660232Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. REMOVE FUEL PUMP FILTER 
    1. Using a screwdriver, detach the 3 claws from the holes and disconnect the fuel pump filter from the fuel filter.

      HINT: 

      Tape the screwdriver tip before use.

      GTY660241Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Detach the claw to disconnect the fuel pump harness from the fuel pump filter.
      GTY628768Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. REMOVE FUEL PUMP 
    1. Remove the fuel pump from the fuel filter.
      GTY628775Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the fuel pump harness connector to remove the fuel pump harness from the fuel pump.
      GTY628776Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove the O-ring and fuel pump spacer from the fuel pump.
      NOTE:

      Be careful not to damage the sealing surface.

      HINT: 

      If the O-ring still remains in the fuel filter, remove it using a wire tip (1 mm diameter) that is formed as shown in the illustration.

      GTY622120Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 O-Ring
      *2 Fuel Pump Spacer
      *a 5.0 mm (0.197 in.)