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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine Intake / Exhaust System (A25A-FXS) - Service Information) >> Intake Manifold >> Removal [10/2021 - ] >> Procedure

Removal [10/2021 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. REMOVE THROTTLE BODY WITH MOTOR ASSEMBLY 

    Refer to REMOVAL [09/2020 - ]

  2. DISCONNECT ENGINE WIRE 

    Refer to PROCEDURE - Step 2 [10/2021 - 10/2022] , or refer to PROCEDURE - Step 2 [10/2022 - 11/2023] , or refer to PROCEDURE - Step 2 [11/2023 - ]

  3. REMOVE NO. 1 EGR PIPE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 3 [10/2021 - 10/2022] , or refer to PROCEDURE - Step 3 [10/2022 - 11/2023] , or refer to PROCEDURE - Step 3 [11/2023 - ]

  4. REMOVE E.F.I. VACUUM SENSOR ASSEMBLY (MANIFOLD ABSOLUTE PRESSURE SENSOR) 

    Refer to PROCEDURE - Step 1

  5. REMOVE PURGE VALVE (PURGE VSV) 

    Refer to REMOVAL [12/2019 - ]

  6. DISCONNECT ENGINE WIRE 
    1. Disconnect the No. 5 engine wire connector.
      GTY880685Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the bolt and disconnect the engine wire from the cylinder head sub-assembly.
    3. Remove the bolt.
      GTY880686Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Disengage the wire harness clamp and disconnect the engine wire from the intake manifold.
  7. DISCONNECT NO. 3 WATER BY-PASS PIPE 
    1. Slide the clip and disconnect the No. 5 water by-pass hose from the No. 3 water by-pass pipe.
      GTY880687Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using an 8 mm socket wrench, remove the bolt and disconnect the No. 3 water by-pass pipe from the intake manifold.
  8. REMOVE NO. 2 WATER BY-PASS PIPE 
    1. Disengage the wire harness clamp and disconnect the HV air conditioning wire.
      GTY932569Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using an 8 mm socket wrench, remove the 2 bolts (A) and separate the No. 2 water by-pass pipe from the intake manifold.
    3. Remove the bolt (B) and No. 2 water by-pass pipe from the cylinder block sub-assembly.
  9. REMOVE NO. 2 FUEL VAPOR FEED HOSE 
    1. Remove the No. 2 fuel vapor feed hose from the intake manifold.
      GTY880681Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE INTAKE MANIFOLD 
    1. GTY880682Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      w/o Stud Bolt:

      1. Remove the 5 bolts and intake manifold from the cylinder head sub-assembly.
    2. w/ Stud Bolt:
      GTY846612Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Remove the 3 bolts and 2 nuts.
      2. Using an E8 "TORX" socket wrench, remove the 2 stud bolts and intake manifold from the cylinder head sub-assembly.
        GTY928042Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. REMOVE NO. 1 INTAKE MANIFOLD TO HEAD GASKET 
    1. Remove the No. 1 intake manifold to head gasket from the intake manifold.
      GTY754160Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. REMOVE NO. 1 ENGINE COVER 
    1. Remove the clip and No. 1 engine cover.
      GTY771528Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. REMOVE VACUUM HOSE 
    1. Remove the vacuum hose from the intake manifold.
      GTY754161Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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