unidentified part causing my problem

[lownslows14]

ive searched and even looked in my manual and found no answer. Ive tore my engine down thinkin i blew a head gasket. Everything has came back great, head is fine, no cracks in the block no nothing. My issue has been antifreeze getting into all four cylinders and puking oil out my crankcase breather and smoking badly.I built compression. Antifreeze had washed the oil away from my rings basically steam cleaning my engine. I checked my intake manifold for cracks, only a bad gasket. BUT, still thinking something else is the problem. My issue is, on the bottom of each port on my upper manifold, there is a hole in each runner. which has a tit on the bottom where a hose runs off each port into some type of rail. almst like a fuel rail. And it has a line coming off the rail which runs into something which i don't know wat it is. Its located behind my thermostat housing and close to my knock sensor. Supposedly its a valve which is sticking causing steam to enter my engine causing my problem. I need help. Sorry for such a long post and no pics.

[AZhitman]

Sounds like someone incorrectly connected a coolant line to the PCV system (hey, don't laugh - it's happened before).

[lownslows14]

ill double check that. It happened to me while driving. I seen lots of smoke and got it home where it sat for a few days. had zero compression til i dropped some oil in the cylinders. started up and ran like crap, smoking and oil coming out, really milky oil. All symptoms come back as a head gasket blown but its not. So im just stumped for now. bout to go pull this part off now

[AZhitman]

Take pics.