Porsche Boxster 986 engine trouble? - 986 Forum - The Community for Porsche Boxster & Cayman Owners

BoxsterSteve · 06-22-2015, 11:29 AM

Big smokescreen + whistling... replace AOS so you don't hydro lock your engine on oil.
The whistling is your tell that the AOS diaphragm is shot and that the engine vacuum is pulling oil into the intake.

Hummer-addict · 06-22-2015, 11:39 AM

Quote:

Originally Posted by BoxsterSteve

Big smokescreen + whistling... replace AOS so you don't hydro lock your engine on oil.
The whistling is your tell that the AOS diaphragm is shot and that the engine vacuum is pulling oil into the intake.

Agree...that's what mine did when it went...