2007 Lexus SC 430FACTORY OEM SERVICE PROCEDURE

Intake Manifold: Removal

  1. DISCHARGE FUEL SYSTEM PRESSURE (See  REMOVAL  ) 
  2. 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.
  3. DRAIN ENGINE COOLANT (See  COOLANT  ) 
  4. REMOVE V-BANK COVER 
    1. Remove the 2 nuts and cover.
  5. REMOVE INTAKE AIR CONNECTOR PIPE 
    1. Disconnect the air hose and ventilation hose.
    2. Loosen the 2 clamps. Then remove the bolt and intake air connector pipe.
  6. REMOVE THROTTLE BODY ASSEMBLY (See  INSPECTION  ) 
  7. REMOVE NO. 1 V-BANK COVER BRACKET 
    1. Remove the bolt and cover bracket.
  8. REMOVE NO. 2 V-BANK COVER BRACKET 
    1. Remove the bolt and cover bracket.
  9. REMOVE NO. 3 V-BANK COVER BRACKET 
    1. Remove the bolt and cover bracket.
  10. REMOVE NO. 4 V-BANK COVER BRACKET 
    1. Remove the bolt and cover bracket.
  11. REMOVE PURGE VSV 
    1. Disconnect the purge VSV connector.
    2. Disconnect the 2 hoses from the purge VSV.
    3. Remove the bolt and purge VSV.
  12. DISCONNECT NO. 2 FUEL PIPE SUB-ASSEMBLY 
    1. Using SST, disconnect the fuel pipe.

      SST 09023-38401 

  13. REMOVE INTAKE MANIFOLD 
    1. Disconnect the vacuum hose of the brake booster.
    2. Disconnect the air hose of the power steering.
    3. Disconnect the ventilation hose.
    4. Disconnect the 8 injector connectors.
      Fig 1: Identifying Fuel Main Hose And Fuel Pipe
      G05289269Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Remove the 6 bolts, 4 nuts and intake manifold.
  14. REMOVE NO. 1 INTAKE MANIFOLD TO HEAD GASKET 
    Fig 2: Locating Intake Manifold, Bolts And Nuts
    G05289270Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.