MyEs300Yea

Ok, old thread instead of making a new one.
How do you know if the PCV valve needs to be replaced?
I just noticed that my ES is low like a half of quart of oil and i did the oil change 2500 miles ago.
I know is either the valve rings or the PCV valve, but how do i know if needs replace.

mdbrown

Used to be you could remove it and shake it and make sure it was free to move inside. Where this one is at, if you go that far for the expense involved you may as well replace it. BTW, using up to 1 quart per 1,000 miles is considered acceptable. A half quart in 2,500 miles really isn't much.

baggyrb4

Question- I did as you say and checked under the front valve cover no sludge found, is it possible that I may have sludge under my rear valve cover?
Also I had changed the ocv due to a misfiring. Which it did corrected. Note: used aftermarket brand. Also aftermarket pcv valve. Also note lots of smoke from muffler on start up.

PFB

a) Assuming that you removed the front valve cover, and that you didn't notice any sludge, than no need to remove the back one as well. You're ok.

b) aftermarket oil control valves are ok. It would have been better to get the original PCV valve, but you're still probably ok. What you NEVER want to do is get aftermarket knock sensors. They seldom work properly, and are labor intensive to install and than remove again.

A/F sensors are also components that you should consider getting OEM. Although most of the time you can get away with the correct aftermarket ones. Avoid however the Bosch brand.

c) What color is the smoke at start up? More details needed.


Phil

yvielomeli

Took my vehicle in to the dealer yesterday, so apparently I need to replace the Valve guide Seal, anyone ever experience this?