what can cause my olds wagon to start sucking oil into air cleaner

55

Asked by Mar 14, 2016 at 08:27 PM about the 1986 Oldsmobile Custom Cruiser

Question type: Maintenance & Repair

what can cause oil to go into my air cleaner on my 1986 oldsmobile custom
cruiser wagon 307 V8

the wagon has 160000 miles and is well maintained i just have no clue
what is causing this problem and i am not driving the car because of this
and i love this car so please help

1 Answer

78,555

First off check the PCV system, make sure the valve is clean and has manifold vacuum, then check the PCV system filter and hoses, make sure they are clean and open and the hose hasn't collapsed. If all of that checks good and you still have oil then a cylinder pressure test is the next order of the day, this will tell you if the rings are allowing too much pressure by during the compression stroke, this increases crankcase pressures and lifts oil into the crankcase vent ares. In other words a worn out engine.

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