I just bought some NGK copper spark plugs and was about to clean the throttle body. When I disconnected my midpipe, I saw oil in the TB and in the midpipe! Have have included pics of it. I don't know if the oil came from the hose that connects to the part of the engine where you pour oil into( I'm so frantic I don't even know the proper name). The oil level is fine though. Here are some pics. Is this serious? What could have happpened? I ambout to clean it now though. Please help. I don't know if this is causing the wierd noise I get under acceleration. Here was my previous post: http://forums.maxima.org/showthread.php?t=245981

TB pics




Intake pic

 

is there any blue exhaust smoke?

 

I don't beleive so, but sometimes I could smell a strong and sharp gas type smell right after startup. Not all the time though.

 

i have read about MEVI people getting oil in the butterfly valvle area, but never in the throtle body

MAYBE, the oil came from the front head. the one closer to the radiator. since that hose is connected to the midpipe maybe it came from there

 

Clean the TB and change your PCV valve. Then check it again in a few weeks to see if the oil has come back.

 

Thanks for the info guys. I was able to change the spark plugs. However, I there was a buzzing noise coming from the PCV valve. It cleaned it with TB cleaner since Pepboys was closed by that time. But seeing that I changed the PCV valve,a brand from Pepboys, earlier this year. I might just buy the PCV from the dealership. Shold I go OEM with it?

 

Maybe you over oiled your K&N...

 

K&N oil is red, not golden black


i would go OEM, it lasted you 6+ years so it should last another 6+years
http://www.trademotion.com/partlocat...95&catalogid=1
for 7$ might as well go OEM

 

i'd say its a pcv valve problem. put a nissan pcv valve in there

 

What does the PCV valve have to do with it?? The PCV valve sends crankcase vapor DIRECTLY into the intake manifold. If anything, I would say it's the oil vapors in the blow-by gas coming from the crankcase vent going back into the intake. http://forums.maxima.org/showthread.php?t=235740