anyone ever replace the PCV valve?

[bmx672]

I just changed my AOS less than 10k miles ago and its blowing oil again into the manifold again... i'm thinking the PVC valve might be the reason?

Question... if a bad PVC is the reason my AOS is blowing oil and I fix the PVC, do I need to also replace the AOS again? Or will that operate normal once the PVC/vac problem subsides?

[wawa]

Hi

I think you need to change the AOS anyway because from what I understand it's a diaphragm inside that break.

I just change the PCV valve and AOS and all is running good right now, I hope it will last this time.

Later
Chris

[bmx672]

Originally Posted by wawa

Hi

I think you need to change the AOS anyway because from what I understand it's a diaphragm inside that break.

I just change the PCV valve and AOS and all is running good right now, I hope it will last this time.

Later
Chris

Probably a good idea to do both I guess...
On a scale of 1-10... How hard is the PVC? Harder than the AOS? Ive done that... It was a bit of a pita...

[wawa]

PCV valve, I would say as hard as the AOS the first time. Its just so tight in there. Hardest part I think was reconnecting the hose to the PCV valve.

later
Chris

[bmx672]

Originally Posted by wawa

PCV valve, I would say as hard as the AOS the first time. Its just so tight in there. Hardest part I think was reconnecting the hose to the PCV valve.

later
Chris

Is it easier with the manifold removed? I did the AOS with it on before, but if it makes it easier to change both by taking off the manifold ill probably do that... Not sure if that's even a good idea?

Thanks for the input...

[wawa]

Its probably easy with the manifold removed, but I defenitly didnt want to remove it.

Later
Chris

[rem503]

I accessed the PCV with the firewall panel and the engine cover removed. There was evidence of oil on the manifold top around the PCV. I cleaned the PCV with carb cleaner and the spring loaded valve seemed to be working ok after the cleaning.

I worked from behind the drivers seat to remove the PCV. Thru the firewall, I had to disconnect an electrical connection and remove a bracket and carefully move a hose out of the way but the part was not too too bad to remove. I reached both thru the firewall and down thru the open upper engine cover. Going down thru the upper engine cover, you'll need long extensions for your 1/4 drive sockets to loosen the bolt holding the PCV. As always, the stupid two tab squeeze fitting was a mother to release.

To reattach the PCV, I used a long extendable magnetic "wand" or part grabber to put the bolt holding the PCV in place back in the threaded hole.

It is a hard to get at part.