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Fuel Pressure Pulsation Damper: Removal

  1. PRECAUTION (See  REMOVAL   ) 
  2. DISCHARGE FUEL SYSTEM PRESSURE 
    1. Discharge fuel system pressure (see FUEL SYSTEM  ).
  3. 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.
    NOTE: After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) battery terminal.
  4. REMOVE INTAKE MANIFOLD 
    1. Remove the intake manifold (see REMOVAL ).
  5. DISCONNECT NO. 1 FUEL PIPE SUB-ASSEMBLY 
    1. Lift up the retainer to release its lock.
    2. Pinch the tube connector and then pull out the fuel pipe.
      NOTE:
      • Check for any dirt and foreign matter contamination in the pipe and around the connector. Clean if necessary- Foreign matter may damage the O-rings or cause leaks in the seal between the pipe and connector.
      • Do not use any tools to separate the pipe and connector.
      • Do not forcefully bend or twist the nylon tube.
      • Check for any dirt and foreign matter on the pipe seal surface. Clean if necessary.
      • Put the pipe and connector ends in plastic bags to prevent damage and dirt contamination.
      • If the pipe and connector are stuck together, pinch the tube between your fingers and turn it carefully to free it. Then disconnect the pipe.
      Fig 1: Disconnecting Fuel Pipe Sub-Assembly
      G04947973Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. REMOVE NO. 3 ENGINE COVER SUB-ASSEMBLY 
    1. Remove the 2 bolts and bracket.
      Fig 2: Identifying Engine Cover Sub-Assembly Bracket Bolts
      G04947974Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 clips and No. 3 engine cover.
      Fig 3: Locating Engine Cover Sub-Assembly Clips
      G04947975Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE FUEL PRESSURE PULSATION DAMPER ASSEMBLY 
    1. Remove the bolt and bracket.
      Fig 4: Identifying Fuel Pressure Pulsation Damper Assembly Bracket Bolt
      G04947976Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the connector from the delivery pipe.
      Fig 5: Identifying Connector
      G04947977Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disconnect the 3 fuel hoses.
      Fig 6: Locating Fuel Hoses
      G04947978Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Using SST, loosen the 2 fuel pressure pulsation dampers.

      SST 09612-24014 (09617-24011) 

      Fig 7: Loosening Fuel Pressure Pulsation Dampers
      G04947979Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Remove the 2 clamp bolts shown in the illustration.
    6. Remove the 2 pulsation dampers, 4 gaskets and No. 1 fuel pipe sub-assembly.
      Fig 8: Locating Clamp Bolts
      G04947980Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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