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Home >> Toyota >> 2020 >> RAV4 XLE, AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Intake / Exhaust System (A25A-FKS) - Service Information >> Exhaust Manifold >> Removal [08/2020 - ] >> Procedure

Removal [08/2020 - ]: Procedure

  1. REMOVE NO. 2 ENGINE UNDER COVER ASSEMBLY 

    Refer to PROCEDURE - Step 4

  2. REMOVE FRONT EXHAUST PIPE ASSEMBLY 
    WARNING:

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

    1. Detach the 2 wire harness clamps.
      GTY944386Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the air fuel ratio sensor (for sensor 2) connector.
    3. Remove the 2 bolts, 2 nuts and disconnect the front exhaust pipe assembly from the exhaust manifold and tail exhaust pipe assembly.
      GTY943120Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Remove the front exhaust pipe assembly from the 2 exhaust pipe supports.
    5. Remove the 2 gaskets from the front exhaust pipe assembly.
  3. REMOVE AIR FUEL RATIO SENSOR (for Sensor 1) 

    Refer to PROCEDURE - Step 2

  4. REMOVE WIRE HARNESS CLAMP BRACKET 
    1. Remove the bolt and wire harness clamp bracket.
      GTY771533Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. SEPARATE 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.

    1. for Type A:

      Remove the 3 bolts and separate the No. 1 exhaust manifold heat insulator from the exhaust manifold.

      GTY996320Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. for Type B:

      Remove the 5 bolts and separate the No. 1 exhaust manifold heat insulator from the exhaust manifold.

      GTY754186Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. SEPARATE NO. 1 UPPER FRONT FLOOR HEAT INSULATOR 
    WARNING:

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

    1. Remove the 2 nuts and separate the No. 1 upper front floor heat insulator from the vehicle body.
      GTY915016Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE MANIFOLD STAY 
    WARNING:

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

    1. Remove the bolt, nut and manifold stay from the exhaust manifold and cylinder block sub-assembly.
      GTY755050Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  8. REMOVE EXHAUST MANIFOLD 
    WARNING:

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

    1. Using a 12 mm deep socket wrench, remove the 7 nuts and separate the exhaust manifold from the cylinder head sub-assembly.
      GTY754194Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the No. 1 exhaust manifold heat insulator, No. 1 upper front floor heat insulator and exhaust manifold.
    3. Remove the exhaust manifold to head gasket from the cylinder head sub-assembly.
      GTY754192Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. REMOVE NO. 2 EXHAUST MANIFOLD HEAT INSULATOR 
    1. for Type A:

      Remove the 3 bolts and No. 2 exhaust manifold heat insulator from the exhaust manifold.

      GTY996840Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. for Type B:

      Remove the 6 bolts and No. 2 exhaust manifold heat insulator from the exhaust manifold.

      GTY754188Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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