Whining/Squealing during IS350 Acceleration - Lexus IS Forum
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post #1 of 4 (permalink) Old 04-18-2011, 12:42 AM Thread Starter
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Whining/Squealing during IS350 Acceleration

Hey IS owners, I just bought my first Lexus about three weeks ago after my subaru got totaled by a drunk driver... keepin' it classy, Vegas!

Anyway, I'm noticing a high pitched squeal in the low RPM range while accelerating. Kinda sounds like making an extended "s" sound as you exhale. I have revved the car in neutral and the noise doesn't prevail. Only when in gear do I hear the squeal from about 1800-2800 RPM, which gets annoying.

Anyone heard of this or able to help me speculate on what it is? Throttle cable maybe? Definitely not the brakes tho... Please help!

-06' IS350- K+N Typhoon Intake- GReddy SE Catback-
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post #2 of 4 (permalink) Old 04-18-2011, 07:02 AM
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Originally Posted by Hungry350 View Post
Hey IS owners, I just bought my first Lexus about three weeks ago after my subaru got totaled by a drunk driver... keepin' it classy, Vegas!

Anyway, I'm noticing a high pitched squeal in the low RPM range while accelerating. Kinda sounds like making an extended "s" sound as you exhale. I have revved the car in neutral and the noise doesn't prevail. Only when in gear do I hear the squeal from about 1800-2800 RPM, which gets annoying.

Anyone heard of this or able to help me speculate on what it is? Throttle cable maybe? Definitely not the brakes tho... Please help!
Car doesn't have a throttle cable, so it's not that... any chance you can post a sound clip or something?
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post #3 of 4 (permalink) Old 04-21-2011, 03:17 PM Thread Starter
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I dont think I can get a sound clip as the car only makes the noise while in gear. You can really hear it as the car drives close to a barrier, wall, or between buildings as the sound can resonate.

If you make an s sound, much like the beginning of the word "snake", and hold that noise- thats what it sounds like! Again, the noise goes away as I accelerate out of the 2500 RPM range, give or take. As the car shifts, however, it hits that sweet spot of about 1500 RPM while cruising. Only when the throttle is depressed does it make the noise- not while the car is coasting. What the heck could it be? Thanks for your input Knight

-06' IS350- K+N Typhoon Intake- GReddy SE Catback-
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post #4 of 4 (permalink) Old 04-24-2011, 11:59 AM
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If your car Whining and Squealing during acceleration try being her some flowers and take her out and show her a good time. Never hurts to show some love. That should shut her whining.

Sorry I couldn't help it
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