06 S40 Whining noise ?vacuum/intake leak/oil trap

starrett7 · Post by **starrett7** » 07 Sep 2009, 17:37

I am baffled trying to locate a whining noise which sounds like its coming from under/behind rubber intake seals and is especially prominant when I listen with hollow plastic tube to my ear on the intake area passenger side. It sounds like an air/vacuum leak. When the engine is turned off, the whining trails off for 1 second after engine has stopped until it depressurizes. I tried cleaning metal surface where plastic intake sealing rings mate and putting microfilm of permatex adhesive sealer on upper rubber intake seals and re-tighten. The whining sound seemed to minimize but after it warmed up the same noise so now I don't think it's from the intake seals. The check engine light also came on. The volvo parts guy said I should consider the oil trap. Where is this located? Could this be the culprit? What's the fix? I need to use the car asap.

Thank you for your assistance.

Post by **OEMVolvoParts** » 08 Sep 2009, 16:33

This car should still be under the factory warranty. If it isn't, then there is an extended warranty for the oil trap, which makes a noise very similar to the one you are describing. The oil trap and oil filter housing are one unit on the S40/V50. It should be covered at no charge to you.

S40Tex · Post by **S40Tex** » 05 Apr 2011, 15:39

In an effort not to post a redundant thread on here i'm going to pose my question to you guys.

I am having an issue with oil leaking out the top of my engine. I originally thought it might be the oil cap seal that was busted and leaking oil, but i don't think it is. I was told that the PCV system could be clogged and need to be cleaned. So, today i had to take my car in anyways to get a different issue looked at. I had the mechanic look at this problem and he told me 1: that my car does not have a pcv system and that 2: the oil trap needs to be replaced. He said that he wants to put a dye in the oil to see where it's leaking from and then in a week, for me to come back and they can tell where it's leaking from. Now, i'm just trying to make sure that i don't get ripped off for an unnecessary $700 job. Any thoughts? Can i just clean out the oil trap myself or is there more to it?

volvodoc · Post by **volvodoc** » 12 Apr 2011, 18:56

this is a warranty issue if you remove the dipstick and the noise goes away return to the dealer for the oil trap and hose replacement i can supply you with the campain numb if you need it

Post by **adamshatner** » 27 Dec 2011, 16:40

Is this still covered under warranty? I have an 06 S40 2.4l that just started doing this today. What is the camp num I'd give to the dealer?