Quote:
Originally Posted by Mxfrank
I had a problem like this and ended up replacing my turbo to no avail. If you have oil entering through the turbo boot in any volume, that's a problem and not ‘blowby’, which would only amount to traces of oil, It could be failed stem seals causing excess pressure. It could be a failure of the idiotic Pcv valve, which is hidden in the valve cover where it can’t be inspected or serviced. It could be a problem with the swinging door air mass sensor. It could be an obstructed air cleaner. And on and on. It’s going to take patience and insight to track it down.
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I'm not convinced that the PCV valve in the valve cover is the issue people say it is. The one in my valve cover is 100% dead. My engine has very little blow-by, and the breather tube is usually relatively dry. I've rigged up a catch can on mine, and in 2 weeks of driving had a single drop in the catch can. If there is significant blowby in the engine, I can imagine a very different story. The design of the PCV valve is definitely stupid. There's no reason they couldn't have made that a plug-in unit on top of the valve cover.