high pitched annoying noise !

[pbarton14]

Im not sure about the noise but I installed a brand new iacv a while back and it made the noise every now and then , but now it does it all the time at idle. Any ideas?

 

[Jickywoo]

Try adjusting the screw on the throttle. Not the hex screw but the flathead/philips screw on the side. If it's out too much it will make a hissing noise.

 

[pbarton14]

Im familiar with that noise I've had to mess with it before , but it's more of an annoying ring

 

[pbarton14]

I pin pointed the noise loudest at the throttle body