What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[89Suburban]

If you’re that deep into it, the sensor should be a piece of cake. Use your metric crescent wrench.

I just got this joke lol

 

[89Suburban]

Let air out the other one so the front is lower and it'll be easier to work on the top of the motor.

#focusonthepositives

I think I found my oil leak. What a filthy ******* mess under here.

 

[89Suburban]

edit double post.

 

[randeez]

 

[Rocket Man]

I think I found my oil leak. What a filthy ******* mess under here.




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Ooh man plug those intake runners fast! Don't feel bad though, they all pretty much look like that. I have a solution though- replace that crappy intake manifold with an upgraded version like this one. Just tell the wifey it's so the engine stays clean.

 

[89Suburban]

Do I need to keep these foam things under here? And the rear plastic cover, can that go too?

 

[wjburken]

Do I need to keep these foam things under here? And the rear plastic cover, can that go too?



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Are you referring to the green intake manifold gasket? Should replace those.

How much oil is in your intake?

 

[89Suburban]

Moar pics for you ball busters.

 

[89Suburban]

Are you referring to the green intake manifold gasket? Should replace those.

How much oil is in your intake?

No I mean those 2 foam pads on the underside. Intake ports are full of carbon/oil crap. Remember I have 322K on this and only had the oil catch can installed about 6 months now.




Looks like that rear steam port block off is seeping coolant too, got new gaskets for those too.

 

[Tonyrodz]

Moar pics for you ball busters.







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That sux ass. That foam is supposed to keep out dirt and moisture. Heard it causes problems. Some guys leave them in, some take them out. What's all that red crumbly shit in the valley?

 

[wjburken]

No I mean those 2 foam pads on the underside. Intake ports are full of carbon/oil crap. Remember I have 322K on this and only had the oil catch can installed about 6 months now.

Hmmm...Don’t remember seeing, let alone, doing anything with those when I had the intake off on my 2007 Denali. I have learned something today.

 

[randeez]

yea if that foam is oil soaked i would just remove it

 

[89Suburban]

That sux ass. That foam is supposed to keep out dirt and moisture. Heard it causes problems. Some guts leave them in, some take them out. What's all that red crumbly shit in the valley?

I don't know what that shit is brah, I know my shop vac just ran for the hills, I got to go chase it down LOL.

 

[Doubeleive]

looks like some kind of tree parts, do you park under a tree that has furry seeds or something, doesn't look like mouse turds

 

[Drok]

Kinda like the stuff i found under my 05 hoetake when i changed those darn sensors under it. Haha.

 

[Rocket Man]

Those foam pieces are supposed to stop stuff from getting under there, you see how good they work. Get rid of them. But seriously, stuff rags in those intake runners on the engine before something gets in there. That’s the first thing I do when I pull an intake.

 

[89Suburban]

 

[gooffeyguy]

I don't even think mine has those foam pieces, as I can see quite a ways under the intake into the valley. Maybe they stopped installing them.

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

 

[89Suburban]

There is no screen under the oil pressure sensor.

 

[89Suburban]

And the valley cover gasket Rockauto sent me is WRONG.