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Home >> Lexus >> 2014 >> IS 350 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (Engine Intake / Exhaust System (4GR-FSE) - Service Information) >> Exhaust Manifold >> Removal [04/2013 - 08/2015] >> Procedure

Removal [04/2013 - 08/2015]: Procedure

WARNING: This page is about a different car, the 2015 Lexus IS 250 and 2014 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
  1. REMOVE AIR FUEL RATIO SENSOR 

    Refer to REMOVAL [04/2013 - 08/2015]

  2. REMOVE FRONT SUSPENSION MEMBER BRACE (for 2WD) 

    Refer to PROCEDURE - Step 13

  3. REMOVE NO. 2 ENGINE UNDER COVER (w/ No. 2 Engine Under Cover) 

    Refer to PROCEDURE - Step 14

  4. REMOVE REAR NO. 2 FLOOR BOARD SUB-ASSEMBLY (for Full Cover Type) 

    Refer to PROCEDURE - Step 2

  5. REMOVE REAR NO. 1 FLOOR BOARD SUB-ASSEMBLY (for Full Cover Type) 

    Refer to PROCEDURE - Step 3

  6. REMOVE FRONT CENTER FLOOR BRACE 

    See step  3

  7. DISCONNECT HEATED OXYGEN SENSOR 

    See step  4

  8. REMOVE FRONT EXHAUST PIPE ASSEMBLY (TWC: Rear Catalyst) 

    See step  5

  9. REMOVE NO. 1 EXHAUST PIPE SUPPORT BRACKET SUB-ASSEMBLY 
    1. Remove the 2 bolts and No. 1 exhaust pipe support bracket sub-assembly from the automatic transmission with transfer assembly.
      GTY461648Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A for 2WD
      *B for AWD
  10. REMOVE FRONT PROPELLER SHAFT ASSEMBLY (for AWD) 

    Refer to PROCEDURE - Step 3

  11. REMOVE NO. 2 ENGINE OIL LEVEL DIPSTICK GUIDE 
    1. Remove the engine oil level dipstick.
      GTY462800Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A for 2WD
      *B for AWD
    2. Remove the bolt and No. 2 engine oil level dipstick guide from the cylinder block.
    3. Remove the O-ring from the No. 2 engine oil level dipstick guide.
  12. REMOVE EXHAUST MANIFOLD SUB-ASSEMBLY RH (TWC: Front Catalyst) 
    1. Using a 12 mm deep socket wrench, remove the 6 nuts and exhaust manifold sub-assembly RH (TWC: Front Catalyst).
      GTY467989Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Front
    2. Remove the gasket from the cylinder head sub-assembly.
  13. REMOVE EXHAUST MANIFOLD SUB-ASSEMBLY LH (TWC: Front Catalyst) 
    1. Using a 12 mm deep socket wrench, remove the 6 nuts and exhaust manifold sub-assembly LH (TWC: Front Catalyst).
      GTY465249Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Front
    2. Remove the gasket from the cylinder head sub-assembly.
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