Friday, September 23, 2011

What does the humming noise mean on my Volvo S40 2006 T5?

My Volvo recently started making a high pitched humming noise. Originally I though it was coming from the serpentine belt, but after further investigation I realized it wasn't. When I took of the oil cap it stopped. Not I think it may be a stuck breather vale some where. I don't know where they would be or how you would check it see if it is working properly. Could I be wrong and it be something with the turbo?|||It's time to take it to the shop.


Sorry :\

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