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Intake Manifold To Head Gasket No. 1: Replacement

  1. DRAIN ENGINE COOLANT (See  ENGINE COOLANT  ) 
  2. DISCHARGE FUEL SYSTEM PRESSURE 
  3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.
  4. REMOVE V-BANK COVER 
    1. Remove the 2 nuts and V-bank cover.
  5. REMOVE INTAKE AIR CONNECTOR PIPE 
    1. Disconnect the air hose and ventilation hose No. 1.
    2. Loosen the 2 clamps. Then remove the bolt and intake air connector pipe.
  6. REMOVE THROTTLE BODY ASSY (See  REPLACEMENT  ) 
  7. REMOVE V-BANK COVER BRACKET NO. 1 
    1. Remove the bolt and cover bracket.
  8. REMOVE V-BANK COVER BRACKET NO. 2 
    1. Remove the bolt and cover bracket.
  9. REMOVE V-BANK COVER BRACKET NO. 3 
    1. Remove the bolt and cover bracket.
  10. REMOVE V-BANK COVER BRACKET NO. 4 
    1. Remove the 2 nuts and cover bracket.
  11. REMOVE VACUUM SWITCHING VALVE ASSY 
    1. Disconnect the VSV connector.
    2. Disconnect the 2 hoses from the VSV.
    3. Remove the bolt and VSV.
  12. DISCONNECT FUEL PIPE SUB-ASSY NO. 2 
    1. Using SST, disconnect the fuel pipe.

      SST 09023-38401

      Fig 1: Disconnecting Fuel Pipe Sub-Assy No. 2
      G02958839Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. REMOVE INTAKE MANIFOLD ASSY 
    1. Remove the installation bolts and the water by-pass pipe No. 1 and No. 2.
    2. Disconnect the vacuum hose of the brake booster.
    3. Disconnect the air hose of the power steering.
    4. Disconnect the ventilation hose.
    5. Disconnect the 8 injector connectors.
    6. Remove the 6 bolts, 4 nuts and intake manifold.
  14. REMOVE INTAKE MANIFOLD TO HEAD GASKET NO. 1 
  15. INSTALL INTAKE MANIFOLD TO HEAD GASKET NO. 1 
    1. Install 2 new gaskets to the cylinder head.

      HINT:

      The side of the gasket with white paint should point outward.

      Fig 2: Installing Intake Manifold To Head Gasket No. 1
      G02958840Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. INSTALL INTAKE MANIFOLD ASSY 
    1. Install the intake manifold with the 6 bolts and 4 nuts.

      Torque: 18 N.m (184 kgf.cm, 13 ft.lbf) 

    2. Connect the 8 injector connectors.
    3. Disconnect the ventilation hose.
    4. Connect the air hose for the power steering.
    5. Connect the vacuum hose for the brake booster.
    6. Install the water by-pass pipe No. 1 and No. 2 with the bolt.
  17. INSTALL FUEL PIPE SUB-ASSY NO. 2 
    1. Using SST, install the fuel pipe.

      SST 09023-38401

      Torque: 

      • 35 N.m (357 kgf.cm, 26 ft.lbf) 
      • 28 N.m (286 kgf.cm, 21 ft.lbf) for use with SST 

      HINT:

      Use a torque wrench with a fulcrum length of 30 cm (11.81 in.).

      Fig 3: Installing Fuel Pipe Sub-Assy No. 2
      G02958841Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. INSTALL VACUUM SWITCHING VALVE ASSY 
    1. Install the VSV with the bolt.

      Torque: 7.5 N.m (76 kgf.cm, 66 in.lbf) 

  19. INSTALL V-BANK COVER BRACKET NO. 4 
    1. Install the cover bracket with the 2 nuts.

      Torque: 7.5 N.m (76 kgf.cm, 66 in.lbf) 

  20. INSTALL V-BANK COVER BRACKET NO. 3 
    1. Install the cover bracket with the bolt.

      Torque: 7.5 N.m (76 kgf.cm, 66 in.lbf) 

  21. INSTALL V-BANK COVER BRACKET NO. 2 
    1. Install the cover bracket with the bolt.

      Torque: 7.5 N.m (76 kgf.cm, 66 in.lbf) 

  22. INSTALL V-BANK COVER BRACKET NO. 1 
    1. Install the cover bracket with the bolt.

      Torque: 7.5 N.m (76 kgf.cm, 66 in.lbf) 

  23. INSTALL THROTTLE BODY ASSY (See  REPLACEMENT  ) 
  24. INSTALL INTAKE AIR CONNECTOR PIPE 
    1. Install the intake air connector pipe with the bolt and hose clamp.

      Torque: 

      • 4.0 N.m (41 kgf.cm, 35 in.lbf) for hose clamp 
      • 5.0 N.m (51 kgf.cm, 44 in.lbf) for bolt 
    2. Connect the air hose and ventilation hose No. 1 together.
  25. CHECK FOR FUEL LEAKS (See  PRECAUTION  ) 
  26. INSTALL V-BANK COVER 
    1. Install the V-bank cover with the 2 nuts.

      Torque: 5.0 N.m (51 kgf.cm, 44 in.lbf) 

  27. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 
  28. PERFORM INITIALIZATION (See  INITIALIZATION  ) 
    NOTE: Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.
  29. ADD ENGINE COOLANT (See  ENGINE COOLANT  ) 
  30. CHECK FOR ENGINE COOLANT LEAKS (See  ENGINE COOLANT  )