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

[Grady_Wilson]

So turns out its the black heater hose tee leaking now. Son of a @#$%^&

I replaced both heater hose T fittings this past summer, they were definitely OEM fittings.
They looked like they were getting very brittle and I am really glad I replaced them before they failed.

And, yeah it does suck that you would need to reprogram the TPMS sensors for your winter wheels when you swap them over.
My scan tool will do it so I am covered should I ever decide to use winter wheels - which I am very much leaning towards doing next winter.

 

[lowh07]

Out with the old, in with the older… just about finished swapping in the 4l80e. Just waiting on the harness adapter and tune. Lost 3rd in the 60 so it was time.

 

[Grady_Wilson]

What did that crossmember cost you?
Looks like it is very well made

 

[j91z28d1]

first noticed a every so slight womp womp womp cruising 80 on the interstate few weeks ago coming back from a quick trip. no one else on the truck could hear it. now I can't not hear it anytime over 60 and it's quiet. if it's driveshaft I'm going to cry lol and then seriously consider a can of gas and a match.

I have hopes it's something else, but I know it's not. blah.


on a side note, is there a way to disable the rear ac controls with the automatic system? a child lock out would be nice haha.

 

[Geoffsfas10]

It's the law, blame Washington, not GM.



My father-in-laws went out too on his Acadia. One special hose was $45, the others over $200!

I spent about $120 or so for both of mine last fall.

Its like 75 bucks for both fittings. And im sure as shit not going to do one without doing the other

 

[lowh07]

What did that crossmember cost you?
Looks like it is very well made

$36.32 shipped on ebay….. yep it’s great. I had to open up the mounting holes a little bit to bring the whole thing down thanks to how close my headers are to the floor

 

[Grady_Wilson]

That is a great deal on that crossmember.

 

[mikez71]

on a side note, is there a way to disable the rear ac controls with the automatic system? a child lock out would be nice haha.

You can take it apart and stick some paper behind the buttons.
I used some scotch tape folded onto itself for the rear radio controls..

 

[Doubeleive]

first noticed a every so slight womp womp womp cruising 80 on the interstate few weeks ago coming back from a quick trip. no one else on the truck could hear it. now I can't not hear it anytime over 60 and it's quiet. if it's driveshaft I'm going to cry lol and then seriously consider a can of gas and a match.

I have hopes it's something else, but I know it's not. blah.


on a side note, is there a way to disable the rear ac controls with the automatic system? a child lock out would be nice haha.

you can sync the rear to the front or turn it off but no lockout like there used to be on the 800's

 

[RooTBeeRthe1st]

Filled it up with corn.

And got my 2month backordered hood louvers.

 

[j91z28d1]

you can sync the rear to the front or turn it off but no lockout like there used to be on the 800's

ugh that's kinda annoying. little fingers and toes like buttons haha.

 

[j91z28d1]

You can take it apart and stick some paper behind the buttons.
I used some scotch tape folded onto itself for the rear radio controls..

I see why you got rid of the auto hvac. overall I miss simple ac with rear ac controls.

 

[Charlie207]

ugh that's kinda annoying. little fingers and toes like buttons haha.

You know what else is annoying?

There is no rear-speaker mute option, for example, if kids are sleeping in the back and adults want to continue listening to old-people music.

 

[Doubeleive]

Figured out why my 02 sensors were not setting....
I thought I had a older BB tune installed but it turns out I had a later one with the 02 sensors disabled, reset everything and put a 2019 tune on it, drove it around a bit today and walla 02 sensors are set I know the rest is good so, duh

 

[RooTBeeRthe1st]

Got too many tunes to keep track of!

 

[RooTBeeRthe1st]

You know what else is annoying?

There is no rear-speaker mute option, for example, if kids are sleeping in the back and adults want to continue listening to old-people music.

Yeah, it is a little annoying having to go into the settings and change the bias to the front speakers only, and it doesn't sound as good either.

 

[Charlie207]

and it doesn't sound as good either.

Bose, in general.

 

[Joseph Garcia]

After 55 years of wanting and waiting for a forced induction vehicle, I finally bit the bullet and installed a Whipple 2.3L supercharger on my 2007 Yukon XL Denali. I'm looking forward to some fun times in the near future.

 

[RooTBeeRthe1st]

After 55 years of wanting and waiting for a forced injection vehicle, I finally bit the bullet and installed a Whipple 2.3L supercharger on my 2007 Yukon XL Denali. I'm looking forward to some fun times in the near future.

View attachment 445954

I cant believe ive had my kit sitting in boxes for 3 years already.

 

[Doubeleive]

Got too many tunes to keep track of!

well I requested some changes this past summer and they sent me 2-3 different tunes and I mistakenly thought I had put the original back on it but after digging around I found it was really from july/24, how I screwed that up I don't know and how I didn't find the 2021 one on my computer until several tries I also don't know I searched 4 hard drives because I normally backup everything and still only have 1 copy so going to back it up now......