60K miles on the wifes XD now and there is a very noticeable whine coming from the engine compartment which increases in pitch with higher rpms. It is independent from the transmission / drivetrain ( same noise even when the car is in neutral/parked).
I have read that the intake makes a whining sound but it should have been doing this from the beginning if that is the case. We are out of state on a road trip now. When I get home i will pull the belt off and run the engine to isolate the issue. In the mean time does anybody have any input? Thanks.

 

Do you have a sound system? Amps, subwoofers?

 

Check the waterpump? Usually it's a grinding noise but I have heard strangerhings. It's worth checking.

 

Usually I am just a browser on here but the sounds you were describing (whinning sound at idle and increases with rpm) was exactly like my XD. It was a bad water pump according to Toyoata and they replaced it under warranty (mine went bad at 35K miles).

 

Ya I am a tech at a dealership and I have seen a LOT of strange noises from failing water pumps. I would almost be willing to put money on it.

 

Exact same here at about 38k. Replaced under warranty, whine gone.

 

Definitely some sort of bearing going out.

 

Is this covered under powertrain warranty? I think mine is going out and just passed 36 mos

 

If you're talking about an alt then no it is not covered under the power train warranty.

 

Water pumps are covered for 5 year 60k miles.

 

Sorry forgot to specify water pump. Thanks folks!

 

I wanted to follow up on my post and say everyone was right.....it was a bad water pump. It finally started leaking so I took I it in. Thankfully I bought a cpo car and it has a 7 year / 100k mile warranty so I should only be out the $50 deductible.

 

I have a 2009 tC, makes a whining noise when I am on the gas pedal, doesn't matter the gear I'm in. If I tap the gas when driving it will whine for about a second then stop until I press the gas again. Ideas?