Hey folks my wife has N/A 3.5 ford engine and I was changing the air filter on it and it was filthy. More importantly the air filter was covered in oil. Why does this happen and how do I fix it?
2009 Lincoln MK S oil on the air filter.
- Thread starter Rust_Belt_Pete
- Start date
Wifes car so I have no service history. So the PCV pukes oil into the filter intake side of air filter?
This was my grandpas car before and it was the worst diving conditions. Super short trip maybe once a month.
Yeah it's a symptom. I'd do it.
Thanks I have some research to do. Seems like I will need to take off the air intake to get to it unless I am a guitarist with a very happy wife.
dnewton3
Staff member
All n/a vehicles made in the last five decades have PCV systems which dump into the intake tract. Some upstream of the air filters, some downstream. But they all have it.
So yes, check the PCV valve. Just replace it, as cleaning them often only works for a much shorter time before getting stuck again.
So yes, check the PCV valve. Just replace it, as cleaning them often only works for a much shorter time before getting stuck again.
In addition to the PCV, the engine needs to breath. There usually is a breather filter in the airbox.
