Throttle body question

[diLucca]

Is this gunk normal?
Maybe headgasket/heads, but to me seems its from PCV.
Whatever, all cleaned up. New "fixed orifice" PCV valve, but still slow droping RPM(in Neutral, and Drive).

 

[diLucca]

Also bypassing TB heater line... for future removal.

 

[SLCHOE]

That's a coolant passage that flows coolant through the throttle body to keep the throttle plate from sticking open in freezing ambiant temperatures. I that normal? No.

What does your oil look like? What does your coolant look like?

 

[ccapehartusarmyINF.(ret)]

all that yellow crap looks like something out of a bad chest cold

 

[ezdaar]

You have water in your oil.

 

[SLCHOE]

You have water in your oil.

Or at least oil in his coolant.

 

[southboundchicken]

Yea that dont look good

 

[diLucca]

coolant looks nice and clean, also oil.
I will check for leaks and condition of coolant and oil.

I hunt in my memory, and have same moisture in top of the engine in my old bimmer(when getting cold outside, and also short trips), also today I remove CCV from my brother BMW and same gunk in hoses from oil separator.
On Yukon, to me seems to be from PCV accumulation into intake.

However, after some little tune (filters, oils, fpr, pump, spark plugs and cables, cleaning TB, and PCV) start showing P0420

 

[ccapehartusarmyINF.(ret)]

looks like something jeff goldblum regergitated when he was the fly

 

[diLucca]

yeah, at least we know how hollywood making some special effects :-D