So i searched and didnt come up with anything so here i am....
I bought a used 2008 IS250 and the car has been amazing...I love it with all my heart. It's still under warranty now so I'm trying to get everything taken car of this year before I'm forced to buy the extended next year when the factory one runs out.

Anyway...my question: When I accelerate, I hear this whine the increases and decreases with engine RPM....sounds like a supercharger...doesn't matter what gear, neutral, etc. I always hear it.
Is this normal for a 250?

 

Is the car on normal mode and not on ECT?

 

I have a 2007 IS350 and there's a distinct whining noise all the time. I've been told by people both on CL and at dealerships that it's normal and related to the nature of the timing chain.

 

does it in every mode...ect, normal, and snow

 

does it sound like a small electric motor whine?
If so, that is the hallmark of the small Toyota engines from it's early days,

 

I assumed the car was not running in high RPM like it was holding the gear and going high rev if it were like in ECT.

In that case, yes every mode would do it.

 

I had that same problem in my 94 saleen. The wine came through the stereo and got louder with the RPMS. I had to replace the amp for the stereo and it went away. take it to your local car stereo place. they will know how to fix it.

 

I completely forgot about the whine the IS250 gets when using the Aux-input. Do you get the whine even with the stereo off? There is a TSIB for a whinning noise coming from the stereo, it happens when you are charging your device and and using the aux-in at the same time. If that's when its happening for you, a simple line filter is needed and its covered by a TSIB if your still under warranty.

 

aha I do get anotherwhining noise through the stereo, but that's another issue...good to know theres a TSB aout that
this one is definitely from the engine bay...does it with the stereo off and everything