Repling late but just had the exact problem.
Your crankcase vent valve freezes and builds up pressure in the engine cuasing the VC gasket to blow. You have to replace both.
I did the job myslef and I consider myself a pretty decent DIYer, but I will never EVER do this install myself again. The area is tight and if you get the cold weather version, even tighter.
Save the headache, go to Rocco - I know next time I will.