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

[gooffeyguy]

Yesterday had the always fun experience of going shopping with the wife and kid

One of the stores I decided not to go in and just wait out in the car for about 20 minutes. While sitting idle I watched the intake temp, coolant temp, and when the cooling fan kicked on, etc.

It was 86 degrees outside. AC on and set to 72.

While driving on the highway, the IAT was 89 and coolant temp was 197. Trans temp was 161.







After sitting idling for a while, the IAT got up to 136 and I could hear either the 2nd cooling fan kick on (or they switched to high) at 203 and it shut off/went back to low at 201





I have a Diablosport Intune i3 using the canned tune and have the DOD/AFM turned off along with the speed limiters. I'll have to check when I get a chance and see what the fan on/off temps are set to.

The hottest I've ever seen the coolant temp get was 207 and the trans temp 190. Not towing, but on vacation with 4 people, luggage, cooler, whatever crap the others had to keep them occupied during the trip, and going up hills in the Smokey Mountains.

 

[RooTBeeRthe1st]

Got tired of the dang plastic center caps cracking and bowties fogging up.
Got the PPV center caps, sprayed them with Steel-It, grabbed some doorman lugnuts, got hardware free99 from the day job leftovers.
Tried black lugs and caps, didnt really like it, chrome lugs black caps, still not really, then silver caps chrome lugs...and i thinks its just the smaller smoother look i actually dont care for with my off-road aesthetic.
That said, black wheels and caps would hide better.

 

[Just Fishing]

Cool! That looks like the LS6 valley cover (Gen3), but without the knock sensor tubes and with caps for the AFM towers for a Gen4. I wonder how effective it is compared to the DS valve cover baffle. Please tell me you're gonna try it out!

The standard go-to is the "LS3" valley cover (#12598832). It's $50-$60. I wonder if that Chevrolet Performance one is $79 better.

Yeah, I'm thinking I'll do it, but maybe not right away since the intake will need to come off.
Not that it's difficult to do or anything, and I'm getting pretty good at it too.
I have a feeling the coolant crossover will need to be modified...

 

[Just Fishing]

Yeah, I'm thinking I'll do it, but maybe not right away since the intake will need to come off.
Not that it's difficult to do or anything, and I'm getting pretty good at it too.
I have a feeling the coolant crossover will need to be modified...

On that note, I'm sort of thinking maybe...
just maybe I'll play with the idea of the crankcase air inlets being on both sides of the valve covers.

Maybe it will prevent gasses from getting trapped in the high point.




I already have both valve covers plumbed for a catch can, so it would be really easy to use a Y of some type.
I also confirmed I don't have any oil coming from the passenger side.
So I'm playing with the idea of taking my dual catch cans and setting them up to be inline/series with each other.
Just to see if I catch any extra oil before I make any changes.
I'm curious more than anything.

 

[Geotrash]

Pulled the camper to Asheville, NC for a long weekend. What a town! The 2012 did great pulling over the mountain passes on I-40 east of Asheville. It was 98° outside at the bottom of the hills, and I saw 230° on both coolant and transmission temps but that was as high as it got and we passed maybe half a dozen vehicles, some pulling campers, pulled over on the side of the road with their hoods up.

 

[13UpInSmoke]

Swapped out the dumb struts I had to get when I lowered the truck last year as the original Z55 struts broke apart on disassembly back to new Arnott Z55 struts. Wow what a difference in ride quality?! I didn't put the McGaughy drop spacers on though as I wanted to try & mount to the bottom of the control arm instead. Definitely took it too low & the front tires were bound up into the top of the inner fender so remounted them back on top of the arms instead. Lost about an 1.5" of drop but will leave for the time being. And got her cleaned up a little?! You can see how low the fronts sitting before I had to remount the new struts

 

[Just Fishing]

Pulled the camper to Asheville, NC for a long weekend. What a town! The 2012 did great pulling over the mountain passes on I-40 east of Asheville. It was 98° outside at the bottom of the hills, and I saw 230° on both coolant and transmission temps but that was as high as it got and we passed maybe half a dozen vehicles, some pulling campers, pulled over on the side of the road with their hoods up.

View attachment 373237

How much does something like that weigh?

That would be a nice size for my use...

 

[CaptainAmerica1]

Looks like 6400lbs loaded…

 

[Geotrash]

How much does something like that weigh?

That would be a nice size for my use...

About 7000 with full water tank, storage compartments and cupboards, according to my cat scale ticket. But usually we don’t roll with a full tank so 6500 or so. We love it.

 

[Sparksalot]

The back ordered airbag recall parts are finally available. Thecopcar goes under the knife Tuesday.

That was easy. In and out in 30 minutes. Done.