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Home >> Toyota >> 2024 >> Corolla LE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 37 (Engine Intake / Exhaust System (2ZR-FXE) - Service Information) >> Exhaust Manifold >> Removal [01/2019 - 09/2022] >> Procedure

Removal [01/2019 - 09/2022]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. REMOVE AIR FUEL RATIO SENSOR 

    Refer to REMOVAL [01/2019 - ]

  2. REMOVE FRONT FLOOR COVER LH 
    1. Remove the 2 bolts and 3 clips and disengage the 6 clamps to remove the front floor cover LH from the vehicle body.
      GTY852339Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Clip
  3. REMOVE FRONT FLOOR COVER RH 

    HINT: 

    Perform the same procedure as for the front floor cover LH.

  4. REMOVE FRONT FLOOR CENTER BRACE 
    1. Remove the 12 bolts and 3 front floor center braces from the vehicle body.
      GTY863286Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE FRONT EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst) 
    WARNING:

    To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

    1. Disconnect the heated oxygen sensor connector.
      GTY910133Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disengage the wire harness clamp.
    3. Remove the 4 bolts and 4 compression springs and disconnect the front exhaust pipe assembly (TWC: Rear Catalyst) from the exhaust manifold (TWC: Front Catalyst) and tail exhaust pipe assembly.
      GTY842712Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the front exhaust pipe assembly (TWC: Rear Catalyst) from the 2 exhaust pipe supports.
    5. Remove the 2 gaskets from the exhaust manifold (TWC: Front Catalyst) and front exhaust pipe assembly (TWC: Rear Catalyst).
  6. REMOVE FRONT NO. 1 FLOOR HEAT INSULATOR 

    Refer to PROCEDURE - Step 8

  7. REMOVE NO. 1 ENGINE UNDER COVER ASSEMBLY 

    Refer to PROCEDURE - Step 7 [01/2019 - 04/2020] , or refer to PROCEDURE - Step 7 [04/2020 - 09/2022]

  8. DISCONNECT FLOOR SHIFT TRANSMISSION CONTROL SELECT CABLE 
    1. Remove the bolt and disconnect the floor shift transmission control select cable from the engine assembly.
      GTY945616Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE WIRING HARNESS CLAMP BRACKET 
    WARNING:

    To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

    1. Disengage the clamp and remove the bolt and wiring harness clamp bracket from the engine assembly.
      GTY926205Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR 
    WARNING:

    To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

    1. Remove the 6 bolts and No. 1 exhaust manifold heat insulator from the exhaust manifold (TWC: Front Catalyst).
      GTY598726Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. REMOVE MANIFOLD STAY 
    WARNING:

    To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

    1. Remove the 3 bolts and manifold stay from the exhaust manifold (TWC: Front Catalyst) and cylinder block sub-assembly.
      GTY544060Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. REMOVE EXHAUST MANIFOLD (TWC: Front Catalyst) 
    WARNING:

    To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.

    1. Remove the 7 nuts and exhaust manifold (TWC: Front Catalyst) from the cylinder head sub-assembly.
      GTY544061Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the exhaust manifold to head gasket and EGR cooler gasket from the cylinder head sub-assembly.
      GTY550950Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Exhaust Manifold To Head Gasket
      *2 EGR Cooler Gasket
  13. REMOVE NO. 2 EXHAUST MANIFOLD HEAT INSULATOR 
    1. Remove the 4 bolts and No. 2 exhaust manifold heat insulator from the exhaust manifold (TWC: Front Catalyst).
      GTY544161Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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