986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - 2nd bad AOS? Continued thread from yesterday...

bmx672 · 04-28-2013, 07:16 AM

Could a bad crankcase ventilation valve cause my AOS to suck oil in like that? I'd hate to replace the AOS if its not bad and the reason for the oil build up in the manifold is because of vac pressure from bad crankcase vent valves...

04-28-2013, 07:16 AM	#2
bmx672 Registered User Join Date: Feb 2007 Location: Loves Park IL Posts: 355	Could a bad crankcase ventilation valve cause my AOS to suck oil in like that? I'd hate to replace the AOS if its not bad and the reason for the oil build up in the manifold is because of vac pressure from bad crankcase vent valves...