Originally posted by SpliceVW:
4/5) You'll have to forgive me, I'm still learning about the basics of an engine. If the PCV valves are the what are hooked up to the intake via the little rubber hoses, then yes, that's where its coming from. Dan did say something about blow-by.. if that's the case, what could be causing excessive blow-by, and how would it get fixed? If the O2 sensor could cause excessive blow-by, I will be a very happy person unless my engine is now damaged.




I don't think your engine is damaged yet. The only way for blow-by to happen is if you have bad rings or the timming is off causing higher pressure in the engine, this would coincide with the noise in #3 because that will throw your timming off.

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