Hey guys I have a 2014 IS350 AWD F-sport and I recently just noticed a weird sound coming from the right side of the car. I can only hear it from inside the cabin, when windows are opened it can't be heard. It sounds like something is lose or rattling, but only happens around 3k+ rpm. Speed does not matter, I've tried revving very slowly in park all the way up to 4k rpm and it can be heard. Advice needed thanks guys.

 

Bring it back to the dealership. Your car is still under warranty. Make them fix it. Don't worry.

 

if you're hearing a faint, metallic vibration/rattling noise, you're not alone. Nobody knows what it is yet.

https://www.clublexus.com/forums/is-...6-5k-rpms.html

I took my car (IS350) in for its 5000 mile service, and asked them to take a look at it. My service advisor mentioned that they were able to duplicate the noise, but the tech checked everything he could and found no loose heat shields or anything else. They tested an IS250 and claim to have heard "a noise like that" at a different engine speed, but chalk it up to a normal "characteristic" of the vehicle "because of the intake and exhaust system that they have." My service order says they put the car on a lift, ran the RPMs to 4000, and took a look - everything is normal.

 

I heard a weird noise yesterday but driving 30mph with the windows open on the right side. It sounded like someone was sharpening knives. I wasn't able to replicate it again though.

Disclaimer: Yes I drive w the windows down sometimes! I don't use the AC necessarily all the time.

Disclaimer: It was a residential street so that's why I was driving 30mph

Disclaimer: Yes, if it happens again I'll take it to the dealer

 

thanks for the link hades