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

Fless · Jul 11, 2026

commercialfshrmn said:
never got that in the mail. all i ever get is the recall for the air-bags. can i take it to the local dealership & have them fix it under recall?

When you're tagged, you may want to take time to read what people point you to. @donjetman posted the link to the TSB in response to your question in another thread:

Oil out the exhaust & codes

07 5.3 LTZ - 200k miles. dod/afm turned off (hp tuners) as well as the back o2 sensors. just added a quarter of oil yesterday, and my girl tells me to come look at this when i started it. never had it do it before. just changed the solenoid for the EVAP that's in the engine bay. P0449 code is...

www.tahoeyukonforum.com

commercialfshrmn · Jul 11, 2026

Doubeleive said:
yes there was a update to them in 2010, just order a LEFT one for a 2013 on rockauto the oem one is about =$65-70, there's a 5% discount code posted on the main forum page, tons of catch cans on amazon, take your pick

so the fuel smell is definitely coming from the passenger side up in the engine bay. here's a few videos. tell me what you see/hear.

1. idle vid (exhaust leak)

2. where the fuel smell's coming from

3. you can hear it misfire when gears are changed

BigDogYJ · Jul 12, 2026

Added 2nd AGM battery in driver side tray and connected in parallel for now. I'll likely separate them later but needed to get something going for this road trip to keep the arb fridge going. Also sprung for Morimoto XB Projector headlights so got them bolted up. Might have pushed myself too hard and reinjured my hand. oops. we'll find out tomorrow. some pics of lights. realized I didn't get pics of 2nd battery. I'll get some tomorrow. nothing special factory mounting on driver front corner and factory cables over to passenger side and ground to side of alternator mount. functional for now.

Doubeleive · Jul 12, 2026

commercialfshrmn said:
so the fuel smell is definitely coming from the passenger side up in the engine bay. here's a few videos. tell me what you see/hear.

1. idle vid (exhaust leak)

2. where the fuel smell's coming from

3. you can hear it misfire when gears are changed

probably need to hook up a scanner and see what the live data shows

commercialfshrmn · Jul 12, 2026

Doubeleive said:
probably need to hook up a scanner and see what the live data shows

whats your recommendation for one on the cheap(er) end?

Doubeleive · Jul 12, 2026

commercialfshrmn said:
whats your recommendation for one on the cheap(er) end?

https://www.amazon.com/dp/B06XK9PTP7?ref=fed_asin_title&th=1

commercialfshrmn · Jul 12, 2026

Doubeleive said:
https://www.amazon.com/dp/B06XK9PTP7?ref=fed_asin_title&th=1

was talking about the live data reader, but i def just bought that catch can!

Doubeleive · Jul 12, 2026

commercialfshrmn said:
was talking about the live data reader, but i def just bought that catch can!

mmm scanners are a investment so they generally cost money
the innova 7111 can sometimes be found for around $200-250 if you keep an eye out

https://www.ebay.com/sch/i.html?_nkw=innova+7111&_sacat=0&_from=R40&_trksid=p2380680.m570.l1313

commercialfshrmn · Jul 12, 2026

Doubeleive said:
mmm scanners are a investment so they generally cost money
if you are quick you can grab this one for what could be considered cheap since retail is $800
innova 7111

https://www.ebay.com/itm/377322655088?_skw=innova+7111&itmmeta=01KXBVE0GD4HY71CD94B1CGE8S&hash=item57da2ecd70:g:pTQAAeSw9vtqSC0O&itmprp=enc%3AAQALAAAA0GfYFPkwiKCW4ZNSs2u11xAdZ7C0Fv%2FXpAExPZG2B2DpHyyJQ2i54KBtWBOtn6DsocReWOdoab8Fw0zANS1S1KZm%2FzMSjwiIrDB4j%2FS8%2B3bdbWqraqFvqbcxXYlgSn92q6Y%2BQulMXYJBSUqjlrNEmLAW0oiSGcDa4Disag6Ham5Nc0kqBBLiItLjIgtXrJLEz7ggdL0Ih6KHMKk9Dk37uC6XySb%2FCOA5XuITgvCv5OiusUYcMjV7Qrsb5Bmuh6FS%2B29WA1ZDYovzPthdfdDInss%3D%7Ctkp%3ABk9SR6yIuPvqZw

gotcha. thanks!
check out my latest thread. i done a live data dump

Doubeleive · Jul 12, 2026

commercialfshrmn said:
gotcha. thanks!
check out my latest thread. i done a live data dump

I didn't see that one was a auction format, but they do show up buy it now for $200-250 from time to time

j91z28d1 · Jul 13, 2026

need to up data a module and my 2 year ran out on 6/1. Just missed it. now it's 54$ and only good for 30days instead of 2 years.

and the software is still the worst thing I've every used. good job gm. blah.

West 1 · Jul 13, 2026

My Scan tool is a Launch X431V+, does everything I have needed and I have done many jobs on many brands of cars. The problem is cost, every two years I have to invest another $400 to keep it up to date, if you do not update they lock your tool. Since I am retired now when I use it I am usually helping a friend or fixing my own cars. I wish I could keep it working and not get future updates, then in 4 or 5 years just buy a new unit but that option is not available. You pay or they lock you out. So a great tool but costly.

commercialfshrmn · Jul 13, 2026

cussed it, like a dog!

j91z28d1 · Jul 14, 2026

found out today the aftermarket makes nice bi-led with a built in gyro to turn towards the inside of a corner when the car turns.

no longer oem German only tech. ugh, now I want to replace every projector retrofit I have haha.

kbuskill · Jul 15, 2026

j91z28d1 said:
found out today the aftermarket makes nice bi-led with a built in gyro to turn towards the inside of a corner when the car turns.

no longer oem German only tech. ugh, now I want to replace every projector retrofit I have haha.

Post a link please, we want to see too.

Joseph Garcia · Jul 15, 2026

My gear builder just notified me that my rebuilt transfer case is ready for pickup. I'll be getting it most likely tomorrow and then set up for the installation.

j91z28d1 · Jul 15, 2026

kbuskill said:
Post a link please, we want to see too.

https://a.aliexpress.com/_mt4etdt

if you Google AFS projectors they come up too. some reviews on YouTube too

commercialfshrmn · Jul 15, 2026

"fixed" my intake box. it wasn't in either hole, nor did it at any point to how it should. no wonder he vacuum leak lol. hoping that's all it was ffs

kbuskill · Jul 15, 2026

j91z28d1 said:
https://a.aliexpress.com/_mt4etdt

if you Google AFS projectors they come up too. some reviews on YouTube too

That's interesting for sure. Trying to figure out how it works. From the pics it looks like it just pivots in the center (obviously) but what controls the pivoting? Just the weight shifting? Seems like that would be very dependent on how level everything was installed and also how level the road is, no???

West 1 · Jul 15, 2026

What happened to your transfer case Joe? Too much HP from the supercharger? Swapping to a Hi Low gearbox? Just curious.

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