Quote Originally Posted by vt_maverick View Post
Doesn't a faulty PCV throw a CEL or engine code? Is leaking oil the only sign you'd ever get that your PCV had gone bad?
Pulled VT_Mav's questions from the other thread.....Good question....

~Would you expect a code to be thrown?....

~If it stuck OPEN, would you expect an oil spray mess in the engine bay?

~If my oil level doesn't drop, BUT the PCV valve does NOT rattle when removed....is that really considered a malfunctioning PCV?

~Or, might that imply a malfunctioning PCV doesn't affect oil consumption?

~If the old PCV has some rattle, is it still functioning?

~Some of my old ones have a rattle that sounds like it's wet/muffled...I assume from oil...wouldn't that be expected?