Its your Airaid setup. Put your stock air intake back on and I bet it goes away. And yes I know you are describing it as a sqeek, mine sounds the same way, almost a metal on metal sqeek kind of sound in the same RPM range.
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The CAI just amplifies what is happening even on a stock vehicle. The sound is sometimes there even on a stock vehicle, but you can't hear it over the engine sounds, road noise, etc. When you put a CAI on it, it amplifies the noise.
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its not the CAI, i do not have one and it definetely has made the sound since leaving the dealership first time, might not be in the tranny at all, but when my foot comes off the clutch there is a squeak

funny.... i had a squeak in my TJ everytime i let my foot off the brake that the dealership couldnt figure out either

 

Yours is the throwout bearing.

 

After my dealer claimed to "not hear" the sqeak, I asked the Service Manager to take a ride with me in two of the 6 speeds on his lot.
They squeaked.
It is not a CAI issue, it is either a tranny mount or clutch issue. Jeep knows about it (enough of of have complained, and need to keep doing so), and I keep reading a TSB is coming....

I am almost certain that the dealers know what the issue is, but they get very defensive when you start telling them to pull the clutch. Hopefully we will see this TSB soon.

 

Welcome to the world of "the squeak/chirp". I had the flywheel replaced and the squeak came back. Now the dealership says they don't hear anything, which is bull. I monitor this forum weekly to see if the TSB is out yet.

 

I have the exact same problem, I was told its normal by 2 dealerships :shrugs:

If you find the problem I would be glad to hear what fix there is for it

 

I agree!!!!! Been there done that , had all of the tsb's done , cluth replaced etc..... There is a quick and easy way to test it, put a towel or rag over your cai, take it for a ride, if the noise is gone, it is your cai.

 

I wonder how many threads will be started about this problem.

 

I noticed this same problem from about the second week I owned my JK.

I have the 6-speed and the first thing that came to mind is the TSB about the throw out bearing. I did a little testing and it only happens under load (can't seem to replicate while in neutral).

The funny thing is, the car I traded in for the Jeep did the EXACT same thing... and by exact, I mean the exact same sound and conditions. I traded in a 2000 Toyota Echo (automatic) that made that same "squeal" or "whistle" type sound. I put over 80k miles on it with the sound and nothing ever happend. I'm beginning to think it is normal and have learned to ignore it.

I guess I will see... if something major breaks down the road I have my warranty to fall back on. The jeep is staying box stock and not going off-road until I pay it off, so there should be no excuse for them not to honor the warranty (I hope).