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.
2004 Lexus ES 330FACTORY OEM SERVICE PROCEDURE
On-Vehicle Inspection
WARNING: This page is about a different car, the 2004 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT INTAKE AIR CONTROL SYSTEM
- Using a three-way connector, connect vacuum gauge to the actuator hose.
- Connect the hand-held tester to the DLC 3.
- Start the engine.
- Select the active test mode according to the message on the hand-held tester.
Vacuum:
INTAKE AIR CONTROL SYSTEM SPECIFICATIONVSV ON Approx. 27 kPa (200 mm Hg, 7.9 in. Hg) VSV OFF 0 kPa (0 mm Hg, 0 in. Hg.)
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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