Well, my 2.4i has a higher pitch squealing noise similar to the ones in these threads.
I have 60k miles and all maintenance is current. The noise started the other day and I've driven it some since. Today, I got a check engine light and the code as read by the guy at Advance Auto is: P0171 - System too Lean. So naturally I thought it was a vacuum leak. And by the sounds of the other posts it's probably at the PCV valve. There is no oil leak, yet. The question is what should I do? I can take it to the dealer but they want $112 for a diagnostic check. She's out of warranty too so I'm basically paying for anything they have to do unless by some miracle I catch a break. So I would think to just dive in and replace the PCV valve. But then the scenario plays out where that's not the fix, maybe I replace all the oil filter housing stuff too, it's still not fixed and I end up taking it to the dealer where it's now certainly not covered by any kind of warranty because I've been in there monkeying around.
So take it to the dealer and hope for the best?
Start replacing stuff, it's probably just the PCV valve? I was poking around a little: isn't the PCV valve hidden under the plastic intake manifold?
Also, any recommendations for a dealer in the Baltimore area? I found four:
Koons, Owings Mills
Herb Gordon, Silver Spring
Bill Kidd, Cockeysville <- Where I bought it