Not 100% sure about the '87, but there is no PCV valve on the 1986 Volvo 240 2.3L. Flame trap and Oil trap, but no PCV.
yes replace the PCV valve it cheep ,,
To replace the oil trap on your Volvo, please consult your owners manual. There should be a guide in there to help you with this repair.
It does however have a box on the front of the engine below the intake that can clog and cause oil leaks. It is called a number of names, oil trap box, oil separator box, etc. The turbo 5 cylinders do not have pcv valves. Dan
Replace the PCV Valve.
replace your PCV first if it persists you will need to look into why you have so much pressure in the crankcase.
Oil in an air filter is commonly caused by a bad PCV filter. Check the filter, and replace as needed.
Its a flame trap it separates the oil from air. it becomes clogged fyi so regular maintenance is needed.
A plugged PCV system. Check/replace the pcv valve and all hoses.
To unclog a PCV (Positive Crankcase Ventilation) system, start by inspecting and cleaning the PCV valve, which can often get stuck or clogged with sludge. If the valve is defective, replace it with a new one. Additionally, check the hoses connected to the PCV system for blockages or cracks, and clean or replace them as necessary. Regular maintenance, including oil changes, can help prevent future clogs.
Strictly speaking it doesn't have a pcv valve it has a pcv system. Generally the part that gets plugged is the oil trap. Pretty much the whole pcv system is under the intake manifold and you have to remove it to do any work. Look on any sight that sells parts for volvos and they'll probably have a diagram of the system.
There is no pcv "valve" on the 2.2 but the pcv "system" keeps oil from getting into the intake. I'm trying to fix my 2.2. Oil everywhere.