Oil dripping from air intake?

[Przybysz]

Today when I took the explorer offroading I went through some pretty massive drifts... Then later i noticed that the truck was not getting up to speed very fast and so i decided to pull over.

I checked the air intake and the filter was packed full of snow.... I cleaned it out but I noticed there was quite a bit of OIL leaking from the air-intake hose going back into the air filter... What could that be? I've been searching through threads and I cant find very useful info....

Any suggestions?

 

[OneLever]

What engine do you have? On the 302 there is a hose connecting the oil fill tube to the air cleaner hose.

 

[jim123]

Check the PVC valve........may just be dirty, may need replaced

 

[JDraper]

Well, if the intake and filter were full of snow, the motor is going to want to draw air in somewhere, so it will try to pull from the crankcase through whatever means it can (pcv valve, breather tube, etc).

Clean the snow out, put a new filter & pcv valve in it, clean all the oil out of the intake and you will probably be fine.

 

[Przybysz]

What engine do you have? On the 302 there is a hose connecting the oil fill tube to the air cleaner hose.

4.0 v6

 

[Przybysz]

Well, if the intake and filter were full of snow, the motor is going to want to draw air in somewhere, so it will try to pull from the crankcase through whatever means it can (pcv valve, breather tube, etc).

Clean the snow out, put a new filter & pcv valve in it, clean all the oil out of the intake and you will probably be fine.

I bought a new air filter, but as for the pcv valve, its dead winter so i probably wont be able to make it to the junkyard for a while. What do u think a new pcv valve would run? vs a used one

 

[Turdle]

PCV should be replaced with a new unit. I would consider this to be a consumable, rather than a part. Sort of like using a used oil filter-

New one is less than 20 bux. I would get a real ford unit.

 

[Przybysz]

Aff... Its sunday Dealerships arent open at the moment.

Would u suggest parking it until I get the new valve?

I have to drive about 60 miles a day with it.

 

[Turdle]

I would try an orielly store for a new PCV valve then. Just be sure you get one which is configured like the one you have now to avoid modifying the hose.

I have to be frank here as you need your vehicle. Tomorrow.

You need a good answer now to avoid being stranded in the cold.

Frankly I am scared right now. You need to run a compression check on all cylinders--as usually blow by this severe is not good. Every time I have seen oil pooling in the intake there was a bad ring or a piston with a hole in it.



Fearing the worst-I suspect moisture passed into the MAF sensor causing it to dip low-leaning the fuel mixture out. In all honesty you need to check this out. Replace the PCV valve-clean the intake tube good and drive it-today. Let's see if you can keep all the oil down low where it belongs.

If it still blows by--you need to run a vacuum and compression check. Let us know please.

 

[Przybysz]

Cleaned the Intake tube, got a new air filter....

I changed the pcv valve last.

I noticed a bit of oil on the bottom of the filter, but I'm thinking its just blowing out the residue. I'm keeping an eye on it.

Also I'm going to be doing a clense of my intake manifold by using Seafoam. I saw a video on the forum, and it looks pretty simple. Any better ideas? Because my throttle body looked pretty nasty on the inside with carbon buildup, and now oil

 

[JDraper]

Change your plugs after you seafoam. There's a good chance they will be fouled after doing it.

 

[Przybysz]

Noted. I'll pick up the plugs tonight or tomorrow.

This is not the project i was hoping for in the wintertime