PCV valve failure no CEL

[dcstover1]

Normally my car burns about 1/2 quart every 3000 miles. Just recently it started burning a lot more and I chalked it up to bad piston rings but decided to take a look at the pcv valve. I checked both ends of the hose that connects the pcv to intake manifold and it was coated in oil far more than what I would consider acceptable. Now I would assume this is the problem with my oil consumption issues so I ready to just grab a new one from ecs. Does anybody have any suggestions on aftermarket brands? Should I only buy OEM? Annnd should I consider taking apart the manifold and cleaning the oil out of it?

Thanks for the help!

[Theiceman]

well I would actually suggest seeing if your valve cover is cracked underneath and pulling oil into your PCV system.

[dcstover1]

A cracked valve cover underneath the pcv valve? Never thought of that. I've already checked pretty thoroughly for leaks.

[Theiceman]

there is a channel that runs through, the valve cover which is part of the PCV system , getting cracked underneath and pulling oil into the pcv system and intake is the number one cause of high oil usage on this model.

do a search on cracked valve cover on this forum and there are some great pics of what it looks like.

[dcstover1]

Will do. Do you suggest replacing the pcv valve while I'm at it?

Thanks for a point in the right direction, appreciate it!

[Theiceman]

I would
I would make the PCV part of a greater plan to refresh and inspect the system. Just get the correct setup for your vin. I bought OE in this case from a genuine parts supplier.

[dcstover1]

Thanks for the help. Any idea on where to find valve covers for a b8 a4? All I can find is ones for the b7.

[Theiceman]

oh shoot ... i did this entire thread and didnt realize i was on the B8 forum .. dammit .. ignore everything i said .. i have a B 8and a B7 and must have got mixed up ... lets start over ....

high oil usage on this model will be 3 things

pcv
turbo seals
Rings

If you have replaced the PCV and it continues, it is usually the rings unfortunately

[dcstover1]

No problem, I was a bit confused as the valve cover is aluminum. Ordering a new PCV just to try first before I go looking for a low mileage B9.

[Theiceman]

Yeah i went the rebuild route


Sent from my iPhone using Audizine

[NJRoadFan]

No problem, I was a bit confused as the valve cover is aluminum. Ordering a new PCV just to try first before I go looking for a low mileage B9.

Nice to see I'm not the only one who went this route.

[dcstover1]

PCV Valve ordered. Along with some Molygen for the next oil change. I'll let you know how it goes. Thanks again

[Depthcharge]

Take note: https://www.audizine.com/forum/showt...8-today/page29