2006 Lexus ES 330FACTORY OEM SERVICE PROCEDURE

Knock Sensor, Intake Manifold (3MZ-FE): Replacement

  1. DISCHARGE FUEL SYSTEM PRESSURE (See  FUEL SYSTEM (3MZ-FE)  ) 
  2. DISCONNECT ENGINE WIRE NO. 3 (BATTERY NEGATIVE TERMINAL) 
  3. DRAIN ENGINE COOLANT (See  ENGINE COOLANT (3MZ-FE)  ) 
  4. REMOVE FRONT SUSPENSION UPPER BRACE CENTER (W/O TEMS) (See  REPLACEMENT   ) 
  5. REMOVE V-BANK COVER SUB-ASSY (See  REPLACEMENT   ) 
  6. REMOVE AIR CLEANER CAP SUB-ASSY (See  REPLACEMENT   ) 
  7. REMOVE EMISSION CONTROL VALVE SET (See  REPLACEMENT  ) 
  8. REMOVE INTAKE AIR SURGE TANK (See  REPLACEMENT  ) 
  9. REMOVE ENGINE MOVING CONTROL ROD 
    1. Remove the pipe from the clamp.
    2. Remove the 4 bolts, then remove the engine moving control rod and radio setting condenser.
    Fig 1: Removing Engine Moving Control Rod
    G02939003Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE INTAKE MANIFOLD 
    1. Disconnect the fuel pipe No. 1.
      1. Remove the fuel pipe clamp.
      2. Pinch the tube connector, then pull out the fuel pipe No. 1.
      Fig 2: Removing Fuel Pipe Clamp
      G02939004Courtesy 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.

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