Misfires and flashing CEL

[911monty]

Originally Posted by safesaxbdd

Ok get this - They said after replacing the AOS there wer still misfire codes, did a smoke test and found smoke coming from the bell housing/RMS. "It would appear that when the AOS failed it caused so much vaccuum in the motor that iit sucked the RMS inward and now you ahve a massive crankcase intake leak."

Like, first of all, I'm going to tell them to park the car until I figure out what's going on but like is that even possible?? I guess it's possible but is it likely? I'm at the point where the car is old, enough money has already been put into it and I don't know if it's worth it to keep putting a couple grand more into it. Saddens me but it's the truth.

I feel like maybe the RMS was the only failure? Canthe AOS fail possibly do that?

Jake Raby has said there are two modes of failure of the AOS. One pulls oil into the intake (most common) In the second the diaphragm fails in the opposite manner and pulls up to 24" water vacuum on the crankcase. This is the most severe mode of failure. Can cause low oil pressure and cause main seals failure.

Found the thread: Looks like AOS, but engine WOES