IS - 3rd Gen (2014-present) Discussion about the 2014+ model IS models

New owner question about engine whine

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Old Feb 14, 2019 | 05:32 PM
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HAFC01
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Default New owner question about engine whine

Hey guys, after over a month wait my 2015 is 350 finally arrived. I love it so far but my only worry is a very loud whine coming from the engine under around 3000 rpm. I know this topic has been discussed before but I can’t seem to find the thread. If someone could put my mind at ease or link the thread that would be awesome.
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Old Feb 14, 2019 | 05:43 PM
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I noticed a whine too at very low RPMs at low gears. It seems to be coming from the fake sound generator located in the intake. It seems to activate under throttle. See the GS thread on more information: https://www.clublexus.com/forums/gs-...r-disable.html
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Old Feb 14, 2019 | 05:49 PM
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Alright thanks alot
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Old Feb 14, 2019 | 06:28 PM
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Originally Posted by HAFC01
Alright thanks alot
100% normal, according to master Toyota technician, I was worried to when I got mine, almost sounds like a supercharger sometimes.
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Old Feb 14, 2019 | 06:36 PM
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Originally Posted by NickCaesar

100% normal, according to master Toyota technician, I was worried to when I got mine, almost sounds like a supercharger sometimes.
My tech said the same thing. I too was very paranoid about it when I first noticed it. Now its just annoying. I think I'll get the RX350 sound generator disabler and install it as noted in the thread I posted to get rid of it someday.
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Old Feb 14, 2019 | 06:44 PM
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Originally Posted by pngo
I noticed a whine too at very low RPMs at low gears. It seems to be coming from the fake sound generator located in the intake. It seems to activate under throttle. See the GS thread on more information: https://www.clublexus.com/forums/gs-...r-disable.html
i don’t think so, the sound generator is just a rubber tube meant to direct intake noise at you. I noticed the car not only whines but is loud as heck in general, almost sounds like a diesel sometimes. According to all the techs I’ve asked about it (prob 5 diff ones) they all say the 2gr-fse is a loud, ugly sounding engine. some of them say it’s the fuel injection, timing chain, transmission even... as long as everything maintenance wise is caught up you’re good.
again, not a mechanic or expert but I’m 99.9% sure the sound generator isn’t responsible for the whining sound. The sound generator is VERY loud tho.
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