FUEL SYSTEM PRECAUTION

  1. IGNITION SWITCH EXPRESSIONS

    1. The type of ignition switch used on this model differs depending on the specifications of the vehicle. The expressions listed in the table below are used in this section.

      Expression

      Ignition Switch (Position)

      Engine Switch (Condition)

      Ignition Switch off

      LOCK

      Off (Lock)

      Ignition Switch ACC

      ACC

      On (ACC)

      Ignition Switch ON

      ON

      On (IG)

      Engine Start

      START

      On (Start)

  2. FUEL LINE

    1. When disconnecting the fuel line, fuel will spray. So perform following procedure.

      1. Disconnect the fuel tube.

      2. Release the pressure remaining in the fuel tank main tube sub-assembly.

      3. Cover the disconnected fuel tank main tube sub-assembly (fuel tube joint and fuel tube connector) with a plastic bag to prevent damage and entry of foreign matter.

    2. Quick Type A:

      Perform the following procedure when disconnecting a fuel tube connector.

      Note:

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

      1. A354335

        w/o Fuel Heater Relay:

        Remove the No. 2 fuel pipe clamp from the fuel tube connector.

      2. Check that there is no foreign matter around the fuel tube connector before disconnecting it. Clean it if necessary.

      3. A159424C31

        *a

        Retainer

        *b

        O-ring

        *c

        Fuel Tube Connector

        *d

        Nylon Tube

        *e

        Fuel Pipe
        V100135

        Pinch
        V100136

        Pull off

        Pinch the retainer of the fuel tube connector, and then pull the fuel tube connector off of the fuel pipe.

        Note:

        Be sure to disconnect the fuel tube connector by hand.

      4. 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.

      5. Check that there is no foreign matter on the sealing surfaces of the disconnected fuel lines. Clean them if necessary.

      6. Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.

    3. Quick Type A:

      Perform the following procedure when connecting a fuel tube connector.

      Note:

      Check that there is no damage or foreign matter on the connecting parts of the fuel lines.

      1. A303841C01
        V100135

        Pull

        Align the fuel tube connector with the fuel pipe, and push them together until the fuel tube connector makes a "click" sound. If it is difficult to push the fuel pipe into the fuel tube connector, apply a small amount of clean fuel to the tip of the fuel pipe and reinsert it.

      2. After connecting the fuel lines, check that the fuel pipe and fuel tube connector are securely connected by pulling on them.

      3. w/o Fuel Heater Relay:

        Install the No. 2 fuel pipe clamp to the fuel tube connector.

      4. Inspect for fuel leaks.

        Click here

    4. Quick Type B:

      Perform the following procedure when disconnecting a fuel tube connector.

      Note:

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

      1. A318103C02

        *a

        Retainer

        *b

        Fuel Pipe

        *c

        Nylon Tube

        *d

        Fuel Tube Connector

        *e

        O-ring

        *f

        Claw
        V100135

        Push
        V100136

        Pull out
        V100137

        Pull off

        Disengage the 2 claws of the retainer. Pull out the retainer and disconnect the fuel tube connector from the fuel pipe.

        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.

    5. Quick Type B:

      Perform the following procedure when connecting a fuel tube connector.

      Note:

      Check that there is no damage or foreign matter on the connecting parts of the fuel lines.

      1. A303816C02

        *a

        Retainer

        *b

        Claw
        V100135

        Push
        V100136

        Push in

        Align the fuel tube connector with the fuel pipe, and push them together until the fuel tube connector makes a "click" sound. If it is difficult to push the fuel pipe into the fuel tube connector, apply a small amount of clean fuel to the tip of the fuel pipe and reinsert it.

      2. Connect the fuel lines and push in the retainer to engage the 2 claws. Check that the fuel pipe and fuel tube connector are securely connected by pulling on them.

      3. Inspect for fuel leaks.

        Click here

    6. Quick Type C:

      Perform the following procedure when disconnecting a fuel tube connector.

      Note:

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

      1. A353554C01

        *a

        Fuel Tube Connector

        *b

        Fuel Pipe

        *c

        Retainer

        *d

        O-ring

        *e

        Nylon Tube
        V100135

        Push
        V100136

        Pull off

        Push the retainer of the fuel tube connector, and then pull the fuel tube connector off of the fuel pipe.

        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.

    7. Quick Type C:

      Perform the following procedure when connecting a fuel tube connector.

      Note:

      Check that there is no damage or foreign matter on the connecting parts of the fuel lines.

      1. A355138C01
        V100135

        Pull

        Align the fuel tube connector with the fuel pipe, and push them together until the fuel tube connector makes a "click" sound. If it is difficult to push the fuel pipe into the fuel tube connector, apply a small amount of clean fuel to the tip of the fuel pipe and reinsert it.

      2. After connecting the fuel lines, check that the fuel pipe and fuel tube connector are securely connected by pulling on them.

      3. Inspect for fuel leaks.

        Click here

    8. Quick Type D:

      Perform the following procedure when disconnecting a fuel tube connector.

      Note:

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

      1. A401846

        w/ Fuel Heater Relay:

        Remove the No. 2 fuel pipe clamp from the fuel tube connector.

      2. A354336

        w/o Fuel Heater Relay:

        Remove the No. 3 fuel pipe clamp from the fuel tube connector.

      3. A268444C02

        *a

        Retainer
        V100135

        Pull out
        V100136

        Pull off

        Pull out the retainer to disengage the lock claws and pull off the fuel tube connector.

        Note:

        Be sure to disconnect the fuel tube connector by hand.

      4. A308190C01

        *a

        Retainer

        *b

        O-ring

        *c

        Fuel Tube Connector

        *d

        Fuel Pipe

        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).

      5. Check that there is no foreign matter on the sealing surfaces of the disconnected fuel lines. Clean them if necessary.

      6. Cover the disconnected fuel pipe and fuel tube connector with plastic bags to prevent damage and contamination.

    9. Quick Type D:

      Perform the following procedure when connecting a fuel tube connector.

      Note:

      Check that there is no damage or foreign matter on the connecting parts of the fuel lines.

      1. A308191C01

        *a

        Retainer
        V100135

        Push
        V100136

        Push in

        Align the fuel tube connector with the fuel pipe, and push them together until the fuel tube connector makes a "click" sound. If it is difficult to push the fuel pipe into the fuel tube connector, apply a small amount of clean fuel to the tip of the fuel pipe and reinsert it.

      2. Connect the fuel lines and push in the retainer. Check that the fuel pipe and fuel tube connector are securely connected by pulling on them.

      3. w/ Fuel Heater Relay:

        Install the No. 2 fuel pipe clamp to the fuel tube connector.

      4. w/o Fuel Heater Relay:

        Install the No. 3 fuel pipe clamp to the fuel tube connector.

      5. Inspect for fuel leaks.

        Click here

    10. A289951C03

      *a

      Fuel Tube Connector

      *b

      Nylon Tube

      *c

      Ethylene Propylene Diene Monomer (EPDM) Rubber Protector

      Observe the following precautions when handling a nylon tube:

      Note:

      • Do not twist the fuel tube connector of the nylon tube or fuel tube connector when connecting it.

      • Do not remove the Ethylene Propylene Diene Monomer (EPDM) rubber protector on the outside of the nylon tube.

      • Do not bend, twist, pinch or kink the nylon tube.

  3. FUEL SUCTION TUBE WITH PUMP AND GAUGE ASSEMBLY

    Note:

    Do not disconnect the tubes shown in the illustration when disassembling the fuel suction tube with pump and gauge assembly. Doing so will cause reassembly of the fuel suction tube with pump and gauge assembly to be impossible as the tube is pressed into the fuel suction plate sub-assembly.

    A354342C01

    *A

    w/o Combustion Type Power Heater

    *B

    w/ Combustion Type Power Heater