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Installation [08/2021 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus ES 250, 2023 Lexus ES 250, 2022 Lexus ES 250, and 2021 Lexus ES 250. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSTALL VACUUM HOSE 
    1. Install the vacuum hose to the intake manifold.
  2. INSTALL NO. 1 ENGINE COVER 
    1. Install the No. 1 engine cover with the clip.
  3. INSTALL NO. 1 INTAKE MANIFOLD TO HEAD GASKET 
    1. Install a new No. 1 intake manifold to head gasket to the intake manifold.
  4. INSTALL INTAKE MANIFOLD 
    1. Temporarily install the intake manifold to the cylinder head sub-assembly with the 5 bolts.
      Fig 1: Intake Manifold Bolts Tightening Sequence [08/2021 - ]
      GTY757029Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Tighten the 5 bolts in the order shown in the illustration.

      Torque: 24 N.m (245 kgf/cm, 18 ft.lbf) 

  5. CONNECT NO. 2 FUEL VAPOR FEED HOSE 
    1. Connect the No. 2 fuel vapor feed hose to the intake manifold.
  6. CONNECT NO. 3 WATER BY-PASS PIPE 
    1. Using an 8 mm socket wrench, connect the No. 3 water by-pass pipe to the intake manifold with the bolt.

      Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

    2. Connect the No. 5 water by-pass hose to the No. 3 water by-pass pipe and slide the clip to secure it.
  7. INSTALL NO. 2 WATER BY-PASS PIPE 
    1. Temporarily install the No. 2 water by-pass pipe to the cylinder block sub-assembly with the bolt (B).
      GTY751309Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Temporarily install the No. 2 water by-pass pipe to the intake manifold with the 2 bolts (A).
    3. Tighten the bolt (B).

      Torque: 21 N.m (214 kgf/cm, 15 ft.lbf) 

    4. Using an 8 mm socket wrench, tighten the 2 bolts (A).

      Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

  8. CONNECT ENGINE WIRE 
    1. Engage the wire harness clamp to connect the engine wire.
    2. Install the bolt.

      Torque: 10 N.m (102 kgf/cm, 7 ft.lbf) 

  9. INSTALL E.F.I. VACUUM SENSOR ASSEMBLY (MANIFOLD ABSOLUTE PRESSURE SENSOR) 

    Refer to PROCEDURE - Step 1

  10. INSTALL NO. 1 EGR PIPE SUB-ASSEMBLY 

    Refer to PROCEDURE - Step 4

  11. CONNECT ENGINE WIRE 

    Refer to PROCEDURE - Step 5

  12. INSTALL THROTTLE BODY WITH MOTOR ASSEMBLY 

    Refer to INSTALLATION [08/2020 - ]

  13. INSTALL INLET AIR CLEANER ASSEMBLY 

    Refer to PROCEDURE - Step 27

  14. INSTALL COOL AIR INTAKE DUCT SEAL 

    Refer to PROCEDURE - Step 4 [08/2021 - 09/2022] , or refer to PROCEDURE - Step 4 [09/2022 - ]

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