Question about 2004 Lexus RX 330

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Just started getting a VERY HIGH PITCHED warning sound that begins about 5 seconds after starting the engine and lasts for roughly 8 to 10 seconds. There are no warning indicators illuminated that coi

Just started getting a VERY HIGH PITCHED warning sound that begins about 5 seconds after starting the engine and lasts for roughly 8 to 10 seconds. There are no warning indicators illuminated that coincided with the high pitched warning sound. Again, this just started to happen and has never happened before. My vehicle is a 2004 Lexus RX330.

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  • Jerrico71
    Jerrico71 Nov 21, 2014

    Thank you for the attempt but that is not it. I have very good user level maintenance capabilities and would know that for sure. My issue is literally a warning type buzzer but this is like one I never heard before on any vehicle; this one is very, very high pitched. almost like the sound when a T.V. station goes off the air for the night. Very odd!

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Maybe your alternator belt needs replacing. Hope this helps, best regards!

Posted on Nov 21, 2014

Testimonial: "Thank you for the attempt to answer and help but that is not it. I have a really good user level maintenance capability and I would know that sort of issue you suggested immediately. The issue I have is literally a warning buzzer of some kind but it is nothing like I have ever heard on any vehicle...ever! It is very, very high pitched and sounds similar to when a T.V. station goes off the air for the night. It is distinct and is obviously of design. It is distinct when it comes on and distinct when goes off. The owners manual nor the supplement speak of any sort of sound, warning noise etc."

  • Renee
    Renee Nov 22, 2014

    emissionwiz, that would have been my next guess.

    Let us know what you come up with, you got me interested now! Best to you!

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Posted on Jan 02, 2017

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SOURCE: Lexus rx300 2002 starts and immediately stalls.

I have a 2001 Lexus RX300 with 120,000 miles on it and I know exactly what is wrong with this car. You either need a new a new Idle Air Control Valve (IACV) or you must clean the one you have with some throttle body cleaner. I cleaned mine a couple of years ago. They are usually good for about 80,000 miles and then they get dirty due to emission controls (smog being recirculated and reburned). The IACV is located near the trottle body on the underside. Check lexusownersclub.com and you will see specific instructions on how to clean this throttle body. It costs you a can of throttle body cleaner and some of your time and this condition will not occur again - I did it!

Posted on Jul 20, 2009

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SOURCE: Lexus RX330 rear hatch open indicator light and buzzer stays on

the switch to detect hatch close is not being pressed down ..check at the striker there is a switch there confirm it is is working by pressing down on it with your finger and watching the light on the instrument panel

Posted on Apr 22, 2010

emissionwiz
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SOURCE: High pitched sound near transmission (whee sound)

Are you sure this isn't the power steering pump? I suspect it is as the noise you have described would be rare in an automatic transmission. Have a local repair shop listen to the noise and confirm what I suspect is a defective power steering hydraulic pump..

Posted on Jul 26, 2012

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