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when i start my car there is a whinning sound( however when i pull the oil cap the whinning goes away) I did research and said something about the Pcv is there anyway i can clean the pcv or the hose out and how ?
 

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It's covered under extended warranty #205. 10 years or 120K whatever comes first. 2004-2008 S40 V50 C70 C30. This is extended warranty, not a recall.

If you are outside of these parameters you'll need to replace it yourself.
 
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