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

[George B]

Cleaned the throttle body. Found the front two VLOM bolts loose. I snugged them up and put things back together. It doesn’t look to be too hard to take the intake off and retorque them. Just need to find a day to do it.

 

[Charlie207]

Trying to get the ground strap bolt out of the back of the driver's side head. Not looking good, boys.

 

[George B]

What is the consensus on intake gasket brand?

 

[Doubeleive]

What is the consensus on intake gasket brand?

felpro metallized

 

[Doubeleive]

the premium one, don't worry about the extra stuff you don't need this kit covers 99-14

 

[pwtr02ss]

I used felpro as well

 

[Charlie207]

Replaced the valve cover gaskets, and cleaned up the schmoo from the valve covers.




Couldn't even start installing this clamp, because the ground strap bolt is King-Konged into the head. I guess I'll try to go up from below, but will have to remove the front drive-shaft.


I just noticed the 6.2 stamped under one of the valve covers. Is that because the 5.3 and 6.2 share the same heads?

Also, the Fel-Pro gasket set came with an extra gasket, and I have no idea where it is supposed to go. Looks like this:


Any clue?

 

[Doubeleive]

Replaced the valve cover gaskets, and cleaned up the schmoo from the valve covers.

View attachment 401525
View attachment 401526

Couldn't even start installing this clamp, because the ground strap bolt is King-Konged into the head. I guess I'll try to go up from below, but will have to remove the front drive-shaft.
View attachment 401527

I just noticed the 6.2 stamped under one of the valve covers. Is that because the 5.3 and 6.2 share the same heads?

Also, the Fel-Pro gasket set came with an extra gasket, and I have no idea where it is supposed to go. Looks like this:
View attachment 401528

Any clue?

that gasket sets covers 99-20 could go to anything, off hand I would guess some form of pcv valve, it's not applicable for all.

 

[Tonyrodz]

Could it be for the coolant crossover tube?

 

[ivin74]

Replaced the valve cover gaskets, and cleaned up the schmoo from the valve covers.

View attachment 401525
View attachment 401526

Couldn't even start installing this clamp, because the ground strap bolt is King-Konged into the head. I guess I'll try to go up from below, but will have to remove the front drive-shaft.
View attachment 401527

I just noticed the 6.2 stamped under one of the valve covers. Is that because the 5.3 and 6.2 share the same heads?

Also, the Fel-Pro gasket set came with an extra gasket, and I have no idea where it is supposed to go. Looks like this:
View attachment 401528

Any clue?

That gasket is for the old LS factory E.G.R. and A.I.R. connection if I'm not mistaken.