Tuesday, September 20, 2011

Why do I have oil in my Air Filter assembly?

I have a 89 Chrysler Lebaron with a 2.5L Turbo 4 cylinder. I went to change my air filter and it was soaked in oil. There looks like there is some sort of a sensor inside the air filter assembly compartment. It has to be coming from that. It sort of looks like a small egr valve, but made of plastic.
Why do I have oil in my Air Filter assembly?
Positive crankcase ventilation valve is plugged or the hose is broken or colasped,very common problem on these engines.
Why do I have oil in my Air Filter assembly?
Agree...PCV valve..or you REALLY have blowby!!

I would check the valve before panic. Always easier to be lazy and do easy checks first.

Good Luck
that's the pcv valve probably ,and the oil your seeing is caused by blow by from the engine,this was a common thing with turbo engines, once they had a few miles on them,they don't hold up as well as regular engines do,one reason for this is they run a lot hotter,and heat causes wear on them,you can try replacing the valve,and clean it all out,and see if that helps it,if not its probably going to need some major engine work done on it,good luck with it.
you need catch can all turbo cars need it. you can make one with compressor filters from home depot and a rubber hose from your local pepboys or kragen. It will only cost about 20 dollars to make. follow your pcvalve and put a compressor in between the line. it will catch alot of the oil. Or you can go buy a 100 dollar catch can from a performance store.



Good web site to help you will be www.srtfourms.com do a search and many srt4 owners will help you.
The repair involves removing the head cover,or valve cover.You will need sealant pn 4318025 from Chrysler part. you can get the the same thing in a auto zone,or other auto parts store. It's not straight silicon,it looks paste,new air filter,new crankcase vent filter,and a valve cover gasket.The repair is to take the baffle off the valve cover (2) bolts hold it in place,once cover is off,pry baffle off gently,do not bend,clean old sealant off,and replace with new,replace 2 bolts,then replace,with new gasket. To see photos of this ,go to Alldata.com.pull up tech service bulletins,one titled oil in air filter.this service is free,you can also buy a CD on your make car.It's worth the money,if you are going to keep the car.
Been there, done that! I agree. Your PCV (Positive Crankcase Ventilation) System works on vacuum. Check the valve and then check the vacuum hose. If the vacuum hose has no leaks and is not overly hard or soft, change the valve.

No comments:

Post a Comment