Hello!

I am servicing/controlling the function of the Crankcase ventilation.
AEB 1.8t Engine 1998.

Is the system supposed to keep pressure or vacum in the crankcase ??

Should I be able to blow both ways on through hockeypuck(034129101B)? Shouldnt it block flow one way??

The "T" part (06A103247) with another valve I can blow through only one way. Could it be faulty anyway??

There is alot of "yunk" in the metall pipe(058103213) going from the "T" part to the Hockey puck. Should I swap it for a clean one?

Live in sweden so 034 kit is unfortunately not an option.