Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

2005 Lexus ES 330FACTORY OEM SERVICE PROCEDURE

Crankshaft Position Sensor (3MZ-FE): Replacement

DISCONNECT ENGINE WIRE NO. 3 (BATTERY NEGATIVE TERMINAL)
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
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE FRONT FENDER APRON SEAL RH
1. Remove the clip and 2 bolts, then remove the front fender apron seal.
  
  Fig 2: Locating Front Fender Apron Seal
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
REMOVE CRANKSHAFT POSITION SENSOR
1. Remove the crankshaft position sensor connector.
2. Remove the bolt, then remove the crankshaft position sensor.
  
  Fig 3: Locating Crankshaft Position Sensor
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSTALL CRANKSHAFT POSITION SENSOR
1. Torque: 8.0 N.m (80 kgf.cm, 71 in..lbf)
INSTALL FRONT FENDER APRON SEAL RH
INSTALL ENGINE UNDER COVER NO.1
CONNECT ENGINE WIRE NO. 3 (BATTERY NEGATIVE TERMINAL)
1. Torque: 5.4 N.m (55 kgf.cm, 48 in..lbf)
SYSTEM INITIALIZATION (See CHARGING SYSTEM (3MZ-FE) )

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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