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Home >> Toyota >> 2019 >> Sienna SE, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 11 (Intake System / Exhaust System [2GR-FE] (Service Information)) >> EXHAUST PIPE & CATALYTIC CONVERTER (for 4WD) >> Installation [12/2015 - 08/2016] >> Procedure

Installation [12/2015 - 08/2016]: Procedure

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  1. INSTALL NO. 2 OXYGEN SENSOR (for Bank 2 Sensor 2) 
    1. Using SST, install the No. 2 oxygen sensor (for bank 2 sensor 2) to the front exhaust pipe assembly.
      GTY728723Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Fulcrum Length of SST
      *b Fulcrum Length of Torque Wrench
      • SST: 09224-00010 

      Specified tightening torque 

      Torque: 44 N*m (449 kgf*cm, 32 ft.*lbf) 

      NOTE:

      If a component has been dropped or subjected to a strong impact, replace No. 2 oxygen sensor (for bank 2 sensor 2).

      HINT: 

      • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench (Refer to PRECAUTION [12/2015 - 08/2016] ).
      • When using SST (fulcrum length of 30 mm (1.18 in.)) + torque wrench (fulcrum length of 300 mm (11.8 in.)): 40 N*m (408 kgf*cm, 30 ft.*lbf).
  2. INSTALL OXYGEN SENSOR (for Bank 1 Sensor 2) 
    1. Using SST, install the oxygen sensor (for bank 1 sensor 2) to the front No. 3 exhaust pipe sub-assembly.
      GTY482255Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Fulcrum Length of SST
      *b Fulcrum Length of Torque Wrench
      • SST: 09224-00010 

      Specified tightening torque 

      Torque: 44 N*m (449 kgf*cm, 32 ft.*lbf) 

      NOTE:

      If a component has been dropped or subjected to a strong impact, replace oxygen sensor (for bank 1 sensor 2).

      HINT: 

      • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench (Refer to PRECAUTION [12/2015 - 08/2016] ).
      • When using SST (fulcrum length of 30 mm (1.18 in.)) + torque wrench (fulcrum length of 300 mm (11.8 in.)): 40 N*m (408 kgf*cm, 30 ft.*lbf).
  3. INSTALL FRONT EXHAUST PIPE ASSEMBLY 
    1. Install a new gasket to the front exhaust pipe assembly.
    2. Install the front exhaust pipe assembly to the exhaust manifold sub-assembly LH (TWC: front catalyst) with 2 new nuts.

      Torque: 62 N*m (632 kgf*cm, 46 ft.*lbf) 

    3. Connect the exhaust pipe clamp to the No. 1 exhaust pipe support bracket and tighten the bolt.

      Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf) 

    4. Engage the 6 clamps to connect the oxygen sensor (for bank 2 sensor 2) wire to the 2 wire harness clamp brackets.
    5. Connect the oxygen sensor (for bank 2 sensor 2) connector.
  4. INSTALL CENTER EXHAUST PIPE ASSEMBLY 
    1. Inspect the free length.
      1. Using a vernier caliper, measure the free length of the compression spring.
        GTY193446Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Free Length of Compression Spring

        Standard Length Minimum Length
        42 mm (1.65 in.) 40.5 mm (1.59 in.)

        If the length is not as specified, replace the compression spring.

    2. Using a plastic hammer and a wooden block, tap in a new gasket until its surface is flush with the front No. 3 exhaust pipe sub-assembly.
      GTY699396Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 Gasket
      *2 Front No. 3 Exhaust Pipe Sub-assembly
      *a Wooden Block
      *b Plastic Hammer
      NOTE:
      • Install the gasket in the correct direction.
      • Do not reuse the gasket.
      • Do not damage the gasket by dropping it, etc.
      • Do not damage the outer surface of the gasket.
      • Do not push in the gasket with the center exhaust pipe sub-assembly (TWC: rear catalyst) when connecting it.
    3. Install the center exhaust pipe sub-assembly (TWC: rear catalyst) to the front No. 3 exhaust pipe sub-assembly with the 2 compression springs and 2 bolts.
      GTY715713Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 Center Exhaust Pipe Sub-assembly (TWC: Rear Catalyst)
      *2 Front No. 3 Exhaust Pipe Sub-assembly
      *3 Gasket
      *a Space between flanges: 8.5 mm (0.335 in.)

      Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf) 

      NOTE:

      After the installation, check that the gaps between the flanges of the center exhaust pipe sub-assembly (TWC: rear catalyst) and front No. 3 exhaust pipe sub-assembly are consistent front-to-rear and left-to-right.

    4. Inspect the free length.
      1. Using a vernier caliper, measure the free length of the compression spring.
        GTY193446Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Free Length of Compression Spring

        Standard Length Minimum Length
        42 mm (1.65 in.) 40.5 mm (1.59 in.)

        If the length is not as specified, replace the compression spring.

    5. Using a plastic hammer and a wooden block, tap in a new gasket until its surface is flush with the center No. 2 exhaust pipe sub-assembly.
      GTY699396Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 Gasket
      *2 Center No. 2 Exhaust Pipe Sub-assembly
      *a Wooden Block
      *b Plastic Hammer
      NOTE:
      • Install the gasket in the correct direction.
      • Do not reuse the gasket.
      • Do not damage the gasket by dropping it, etc.
      • Do not damage the outer surface of the gasket.
      • Do not push in the gasket with the center exhaust pipe sub-assembly (TWC: rear catalyst) when connecting it.
    6. Install the center exhaust pipe sub-assembly (TWC: rear catalyst) to the center No. 2 exhaust pipe sub-assembly with the 2 compression springs and 2 bolts.
      GTY715713Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *1 Center Exhaust Pipe Sub-assembly (TWC: Rear Catalyst)
      *2 Center No. 2 Exhaust Pipe Sub-assembly
      *3 Gasket
      *a Space between flanges: 8.5 mm (0.335 in.)

      Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf) 

      NOTE:

      After the installation, check that the gaps between the flanges of the center exhaust pipe sub-assembly (TWC: rear catalyst) and center No. 2 exhaust pipe sub-assembly are consistent front-to-rear and left-to-right.

    7. Install 2 new gaskets to the center exhaust pipe assembly and the front exhaust pipe assembly.
    8. Connect the 2 exhaust pipe supports to install the center exhaust pipe assembly to the vehicle.
    9. Install the center exhaust pipe assembly to the front exhaust pipe assembly with 2 new bolts and 2 new nuts.

      Bolt 

      Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf) 

      Nut 

      Torque: 62 N*m (632 kgf*cm, 46 ft.*lbf) 

    10. Engage the clamp to connect the oxygen sensor (for bank 1 sensor 2) wire to the vehicle.
    11. Pass the connector through the hole to the inside of the vehicle and install the grommet of the oxygen sensor (for bank 1 sensor 2) wire.
    12. Connect the oxygen sensor (for bank 1 sensor 2) connector.
  5. INSTALL TAIL EXHAUST PIPE ASSEMBLY 
    1. Install a new gasket to the center exhaust pipe assembly.
    2. Connect the 4 exhaust pipe supports to install the tail exhaust pipe assembly to the vehicle.
    3. Install the tail exhaust pipe assembly to the center exhaust pipe assembly with 2 new bolts.

      Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf) 

  6. INSTALL INSTRUMENT PANEL FINISH PANEL END LH 
    1. Engage the 3 guides and install the instrument panel finish panel end LH.
    2. Install the clip.
  7. INSPECT FOR EXHAUST GAS LEAK 
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