So, that's how you get oil residue in your TB!

[PlazaEJ]

Really?! REALLY!?!
I was checking for positive crankcase information on my '01 Yukon, with a 6.0l, when I saw a vacuum hose running from the right valve cover to the Throttle Body. So, if the intake manifold is drawing air through the pcv valve and crankcase, doesn't it make sense that it would be taking air from the Throttle Body passage? This is really confusing.

Any discussion?

EJ

 

[Big Buttons]

To stop the oil from getting their install a catch can from www.catchcans.com. It goes inline with the pcv line.

 

[PlazaEJ]

I am looking into making my own catch can. However, that won't stop the TB from drawing an air/oil vapor from the right valve cover.

What's the purpose of that, anyway?

 

[Big Buttons]

the catch can goes in the line from the right valve cover to stop all oil from entering your manifold.

 

[PlazaEJ]

the catch can goes in the line from the right valve cover to stop all oil from entering your manifold.

Uh, don't you mean LEFT valve cover. PCV valve is on the left/"Driver's" side.

 

[Big Buttons]

Yes. We were thinking of different orientations. I sawwy, disregard my comments lol.

 

[PlazaEJ]

Yes. We were thinking of different orientations. I sawwy, disregard my comments lol.

That's what I thought.

No prob.

Also, I was wondering if that port on the TB could be used for an entry point if spraying Sea Foam?

EJ

 

[Big Buttons]

They sell this long straw thing that has a bunch or holes on the sides and that how you are supposed to spray sea foam into these motors.

 

[PlazaEJ]

Yeah, right. I've tried that stupid tube. It's a colossal PITA.

 

[Bill-H]

it may be a PITA, but does it actually work better?