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Home >> Toyota >> 2021 >> C-HR XLE >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Intake System / Exhaust System - Service Information >> Exhaust Manifold & Catalytic Converter >> Removal [02/2017 - 10/2017] >> Procedure

Removal [02/2017 - 10/2017]: Procedure

  1. REMOVE NO. 1 ENGINE UNDER COVER 

    Refer to PROCEDURE - Step 7

  2. REMOVE FRONT FLOOR COVER LH 
    1. Remove the 2 bolts and clip and disengage the 5 clamps to remove the front floor cover LH from the vehicle body.
      GTY742882Courtesy 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.
      GTY766826Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REMOVE FRONT EXHAUST PIPE ASSEMBLY (TWC: Front and Rear Catalyst) 
    WARNING:
    • To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
    • 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.
      GTY767259Courtesy 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: Front and Rear Catalyst) from the exhaust manifold and tail exhaust pipe assembly.
      GTY766913Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the front exhaust pipe assembly (TWC: Front and Rear Catalyst) from the 2 exhaust pipe supports.
    5. Remove the 2 exhaust pipe gaskets from the exhaust manifold and front exhaust pipe assembly (TWC: Front and Rear Catalyst).
  6. REMOVE AIR FUEL RATIO SENSOR 

    Refer to REMOVAL [02/2017 - 10/2017]

  7. REMOVE NO. 1 EXHAUST MANIFOLD HEAT INSULATOR 
    WARNING:
    • To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
    • To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.
    1. Disengage the 3 clamps.
      GTY766912Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt and wire harness clamp bracket from the cylinder head sub-assembly.
    3. Remove the 4 bolts and No. 1 exhaust manifold heat insulator from the exhaust manifold.
      GTY766908Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE MANIFOLD STAY 
    WARNING:
    • To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
    • 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, drive shaft bearing case sub-assembly and cylinder block sub-assembly.
      GTY774331Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE EXHAUST MANIFOLD 
    WARNING:
    • To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
    • To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.
    1. Remove the 5 nuts and exhaust manifold from the cylinder head sub-assembly.
      GTY766907Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the exhaust manifold to head gasket from the cylinder head sub-assembly.
  10. REMOVE NO. 2 EXHAUST MANIFOLD HEAT INSULATOR 
    WARNING:
    • To prevent burns, do not touch the engine, exhaust manifold or other high temperature components while the engine is hot.
    • To prevent burns, do not touch the engine, exhaust pipe or other high temperature components while the engine is hot.
    1. Remove the 4 bolts and No. 2 exhaust manifold heat insulator from the exhaust manifold.
      GTY774332Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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