Squeal from engine bay??

[Bonds756]

Neef help guys. I do not have an audi shop in town tontake this to so im trying to get an idea of where the noise us commingvfrom. Started aboutbavwrrk ago. Was only when driving for about 30-60 mph then went away wgen slowing. Jus started when stopped in the garage. its aldo intermittent tiday it did not do it until late, however it seems to be getting worse. Any ideas?

[Denio24]

Probably something with the serpentine belt, bearing, idler pulley.

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[Bonds756]

http://youtu.be/B4IAu0vE0Cg
Here is the vid. Seems to be atound the pcv area slso changes with shift?? I tried lubing the belt with new change another her vid dhortly

[Bonds756]

http://youtu.be/9akAGe2Rp1o

[Bonds756]

Wow sorry about all the typos on the original post. Doing this from my cell. Thanks for any info guys.

[supple]

I had a similar noise and thought it might have been the idler pulleys but further examination of the Pcv block off plate solved the issue. I replaced the entire plate, there's a check valve in there that can deteriorate over time. There's an easy way to check by blowing through the breather hose at one end. I don't remember if it's supposed to blow through or block though

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[yeoj112689]

I had a similar noise and thought it might have been the idler pulleys but further examination of the Pcv block off plate solved the issue. I replaced the entire plate, there's a check valve in there that can deteriorate over time. There's an easy way to check by blowing through the breather hose at one end. I don't remember if it's supposed to blow through or block though

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In the stock PCV when you blow in it is supposed to block the air.

[Bonds756]

Ill give this a shot thanks

[Bonds756]

So i tested and it did block the air so dont know. but a while back i was getting some pcv errors on the vag when i replaced a thermostat. They cleared and did not return. I did the idel engine and pull oil cap check and the idel drops bit not much so Im going to go ahead and order the part to replace it since it seems to be a quick easy job anyway. Hopefully that will be it. Any other ideas on what to check while i wait on shipping peeps :).

[Bonds756]

The strange thing is ot will do it then go away for 1/2 a day then come back for 2-3 days

[yeoj112689]

It was hard to tell from the video where its coming from but it sounds like a metal squeal rather then a belt.

I would check your belts to make sure they're not missing teeth on the timing and that the acc belt isn't worn down.

PS. With the pcv you can actually open some models up and see the diaphragm (or the rubber part in there) and see if its torn. The circular part pops up, just be careful to not loose anything inside and note they way it goes in there before removing any springs. (not hard to do).

[Bonds756]

It was hard to tell from the video where its coming from but it sounds like a metal squeal rather then a belt.

I would check your belts to make sure they're not missing teeth on the timing and that the acc belt isn't worn down.

PS. With the pcv you can actually open some models up and see the diaphragm (or the rubber part in there) and see if its torn. The circular part pops up, just be careful to not loose anything inside and note they way it goes in there before removing any springs. (not hard to do).

Success!! Pcv valve was it. thank you so much guys!!! great to have my car back to how it is suppose to be!