4afe PCV Valve

[ahmad.25jadoon]

Assalamualaikum.
I have 4afe engine ... I am facing oil issue in PCV valve .... Oil is coming out from pvc valve to Intake Manifold.
I have changed certain PCV valves all of them are working fine . All PCV valves allow air to flow from only 1 direction. When i shake PCV valve rattling sound coming from it. .... But main issue is only oil coming from PCV valve to intake Manifold...

What will be the issue kindly guide me

[rajaatta]

Excessive engine blow by check the valve cover inlet breather port may be it's chocked

[ahmad.25jadoon]

@rajaatta Breather port adjacent to PCV valve hole is ok . Not chocked

[haseeb.basharat]

Are you using new pcv valve or kaabli kabaar?

[ahmad.25jadoon]

I used both .... I think kabli one is better than new one... As new one is available in very cheap/low quality. I even order through Ali express same cheap quality delivered

[haseeb.basharat]

I think kabli one is better than new one... As new one is available in very cheap/low quality. I even order through Ali express same cheap quality delivered

By new I meant toyota oem.
Try importing a brand new one through partscentral: https://www.facebook.com/PartsCentralPK?mibextid=ZbWKwL

[ahmad.25jadoon]

Okay brother

[ahmad.25jadoon]

@rajaatta . Port adjacent to PCV valve which is directly connected to Air intake manifold through direct pipe also send oil to Intake manifold ...

[ahmad.25jadoon]

@Hassan1991

[Hassan1991]

Wailaikum Assalam
You sure it's coming from inside the pcv not from the O ring?

[ahmad.25jadoon]

Yes 100% sure + oil also coming from adjacent port too

[Hassan1991]

Share some pictures.

[rajaatta]

Okay so the pcv should be connected to the port going in directly to intake manifold the other port on tappet cover is going directly in air cleaner pipe or below the throttle body assembly check if the connections have been connected on opposite direction.

Most of the time mechanics by pass the pcv and connect the breather inhaling pipe on manifold and vice versa

[ahmad.25jadoon]

Both connection are connected with correct ports

[ahmad.25jadoon]

I will share pics tomorrow

[capsat]

if it is excessive blow back compression test will reveal the issue, daboo leakage at any cylinder or rings at all 4 cylinders are at end of life. please, it is best time you take your car for compression test. wet & dry test readings will clear the issue.

[ahmad.25jadoon]

I have checked compression test of all cylinders dry test ... All cylinder have 150psi . Is it ok ?

[capsat]

thats half test - what is reading over wet test. ?

[memphis]

had a similar issue with my Corolla EE90 when I was using the commonly available cheap looking PCV valves, it was leaking all over the place, thankfully I was able to acquire a better quality PCV valve and all leaks came to an end.

Major difference was that the cheap one was allowing very little air to pass through.

[ahmad.25jadoon]

Same 150 psi on wet test too