Question about 1994 Volvo 940

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I just bought a 94 940 turbo 132 K miles.runs greatit sat for 4yrs!But aftre the oil was changed it started to smoke alotit also has alot of back presure. Also has alot of smoke coming out of oil filler cap when removed.iunderstand there is afilter or something in the crankcase vent system. Could this cause the problem.

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Yes,volvo,s have a problem with this,remove clean and reinstall the pcv filter or replace it,excessive crank case pressure can allso lead to blowing engine seals and gaskets.

Posted on May 16, 2010

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