2004 Lexus ES 330FACTORY OEM SERVICE PROCEDURE

Crankshaft Position Sensor (3MZ-FE): Replacement

  1. DISCONNECT ENGINE WIRE NO. 3 (BATTERY NEGATIVE TERMINAL) 
  2. REMOVE ENGINE UNDER COVER NO. 1 
    1. Remove the 3 clips and 5 screws, then remove the engine under cover No. 1.
      Fig 1: Removing Engine Under Cover No.1
      G00906950Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. REMOVE FRONT FENDER APRON SEAL RH 
    1. Remove the clip and 2 bolts, then remove the front fender apron seal.
      Fig 2: Removing Front Fender Apron Seal RH
      G00906951Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. REMOVE CRANKSHAFT POSITION SENSOR 
    1. Remove the crankshaft position sensor connector.
    2. Remove the bolt, then remove the crankshaft position sensor.
      Fig 3: Removing Crankshaft Position Sensor
      G00906952Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. INSTALL CRANKSHAFT POSITION SENSOR 

    Torque: 8.0 N.m (80 kgf.cm, 71 in.lbf) 

  6. INSTALL FRONT FENDER APRON SEAL RH 
  7. INSTALL ENGINE UNDER COVER NO.1 
  8. CONNECT ENGINE WIRE NO. 3 (BATTERY NEGATIVE TERMINAL) 

    Torque: 5.4 N.m (55 kgf.cm, 48 in.lbf) 

  9. SYSTEM INITIALIZATION (See  GENERATORS & REGULATORS  ) 
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.