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.
2003 Lexus LS 430FACTORY OEM SERVICE PROCEDURE
VVT Sensor (3MZ-FE): Replacement
WARNING: This page is about a different car, the 2004 Lexus ES 330. However, it is still accessible from the selected car via links, so may be relevant.
- DISCONNECT ENGINE WIRE NO. 3 (BATTERY NEGATIVE TERMINAL)
- REMOVE RADIATOR LOWER AIR DEFLECTOR (See REMOVAL & INSTALLATION )
- REMOVE AIR CLEANER INLET ASSY (See REMOVAL & INSTALLATION )
- REMOVE AIR CLEANER ASSY (See REMOVAL & INSTALLATION )
- REMOVE VVT SENSOR
- Remove the 2 VVT sensor connectors.
- Remove the 2 bolts, then remove the 2 VVT sensors.
HINT:
The VVT sensor is installed with the bolt.
Factory Service Tools
Use the Manual With the Right Hardware
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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.