How do you check for possible oil blow-by?
At first I was thinking it was my PS pump, but now im thinkin oil is gettin out somewhere.
I have a few odd things that make me thing it is, oil pressure is very irratic, its either kinda high or quite low, sometimes it reacts to reving the engine a bit or sometimes it will go down when I rev a little.

What are something to check and or replace?

 

Do, or have done, a compression check.

 

Pull the spark plugs and if they are really black or have oil on them you got blow by. Another possibility for erratic oil presure is a bad rod bearing or bad oil pump.

 

hmm...well i hope it isnt then, this engine only has 10,000-13,000 miles on it. But I am gonna check the plugs this weekend

 

Yea a blown head gasket or piston ring will do it too. If that is the case tho youd likely see white smoke often coming out your pipes.

 

yeah, no white smoke. changed the oil recently and no water in the oil

 

do a compression check

 

i had/ have blow by and its because ur crankcase isn't ventilating enough. have u checked ur pcv? do u have a breather on ur vavle cover(my problem need one). wirh my car though in the higher rpms the pressure builds and pushes the dipstick out with oil right behind it

 

yeah i put in a new PCV with the engine, but maybe its bad already. I have a breather on the PASS side valve cover, but maybe it isnt sufficiant enough to get the job done...

 

find a friend u trust and check and see if ur expierceing the same problem i am. let them rev it to like 5500 and see if it shoots out any oil