HELP!!! what is this problem? How much will the repair cost?

949543

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2165290

{"replyTo":"","text":"no.  is not a problem at all.   is normal on volvo truck. that is the engine is releasing the gases for the hot oil in the engine.   OMG.   to be a driver you should have Noles of mechanic.    atlest a little bit.","replyToPid":0}

947584

{"replyToPid":0,"replyTo":"","text":"first replace crankcase filter.\nfor a temporary fix you can take a 1 inch rubber hose and loop it around from the inlet to the outlet of your crankcase filter then just run a hose from the valve cover down then see if its better.\nif it  still a problem probably going to need a rebuild."}

764614

{"replyTo":"","text":"From what I know it's from pressure in the crankcase. Could be a minor fix or could be major. Best to get it checked just to make sure it's nothing major.","replyToPid":0}