2002 Maxima SE

iTrader: (3)

Anyone know the source of oil in the intake manifold? I have puddled oil all inside the intake. Thinking about getting a catch can and either putting it on the PVC valve or the breather tube for the intake.

Cleaned my throttle body about 10k miles ago but did not notice a lot of oil/grime. So what is the source?

Kevlo911

iTrader: (36)

PCV. If you have aftermarket midpipe, that will make oil go in hte IM too.

2002 Maxima SE

iTrader: (3)

Thats what I thought. Still not sure how it gets there...from the intake though. Would it be better to put the catch can on the intake breather tube or the pcv?

Kevlo911

iTrader: (36)

PCV.

Do you have a aftermarket midpipe?

2002 Maxima SE

iTrader: (3)

No, completely stock.

Kevlo911

iTrader: (36)

Then you can put an oil seperator on the PCV hose.

2002 Maxima SE

iTrader: (3)

Any recommendations?

screamindman

Where is the PCV valve on our cars? A nerd at the service desk said that we did not have a PCV valve in our cars. I wanted to replace mine, and the guy said that there isn't one.

2002 Maxima SE

iTrader: (3)

It is on the passenger side of the intake manifold. Look for a small tube coming out of the manifold and connecting to the back of the intake. Tube is about 6 inches long.

screamindman

Thats the pcv, how much is the replacement?

2002 Maxima SE

iTrader: (3)

I think it was around $30. Maybe a little less.

2002 Maxima SE

iTrader: (3)

Wondering if the oil/crud being passed back into the air stream has anything to do with the low RPM pinging some of us 2002-2003 Maxs have. I read that oil in the fuel will seriously lessen octane.

2002 Maxima SE

iTrader: (3)

An interesting solution to the problem:

http://www.msnusers.com/LVspics/shoe...nw?albumlist=2

This guy created a special oil cap, so PCV vents back into the pan.

2002 Maxima SE

iTrader: (3)

ttt
for the weekday crew

2002 Maxima SE

iTrader: (3)

Interesting findings thus far. I drive about 30 miles round trip to work per day. So far, after only 3 days, the separator is about half full of fuel/oil.

I noticed that the low RPM ping is not as bad. I've only heard it once in the last 3 days.

chris'smax

iTrader: (3)

Holy $hit, that guys shop is right down the street from my house. The do alot of work on some bada$$ mustangs. He also has a more than stout rx7. I'm going to have to talk to him about this.

Here's a pic of the RX-7

2002 Maxima SE

iTrader: (3)

Thanks Chris. PM/Reply back with what you find out.

2002 Maxima SE

iTrader: (3)

All of that was caught in only 300 miles of highway driving.