What did you do to your NBS GMT800 Tahoe/Yukon Today?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Tonyrodz

Resident Resident
Joined
Feb 16, 2012
Posts
33,201
Reaction score
51,448
Location
Central Jersey
Oh I thought you used a complete rear Denali bumper. Didn't know you just switched plastics. Good to know tho! I thought that most holes lined up but a few extras were added for Denali cover or hitch cover
Here's mine on the Hoe.
IMAG1239.jpg
 

MadDogDelpho

Texcellent
Joined
Nov 20, 2016
Posts
1,692
Reaction score
2,297
Location
Texas
Thinking about changing things up. I think I might pull the curved lightbar and put a straight bar up on the roof rack, then put cab lights up top. Then I can replace the door seals and it should be a little quieter and, even better, won't leak!!!
 

Chubbs

Full Access Member
Joined
Jun 24, 2017
Posts
636
Reaction score
396
Yeah I'm pretty sure. And today all the sudden after I put it back in 2wd and get two miles down the road all the sudden I was slowing down and went to get back in the throttle and the rpms went up but no drive like I was in neutral. Pulled over was gonna cut the truck off and decided to put it in auto and I hear this loud noise and then put it back in 2wd and had gears again. Crazy and it drove fine after that. Weird. The mirror thing is just annoying.

Sent from my SM-G955U using Tapatalk

It sounds like your encoder ring is going out. Then again, the TC motor has a lock so that it cannot shift out of the drive mode but... that's what it's doing. I wonder if oil is leaking past the gasket & corrupting various parts of the motor. Have you pulled the TC encoder motor off yet? I would be doing that ASAP

1 day it's gonna fu{k around & shift itself into 4-LO (doing 40mph) instead of Neutral, then what?
 
Last edited:

Chubbs

Full Access Member
Joined
Jun 24, 2017
Posts
636
Reaction score
396
https://store.paintbull.com/
This is where I went to school and also where I get my supplies. Their big thing with the paints and dyes are they're water soluble. How big is the tear and where is it located?
Here's a Yukon/Tahoe that I've done. This tear is super common with these. Just from sliding in and out.View attachment 182271
AfterView attachment 182272


Wish I could repair this! Prob be easier to just replace the whole damn seat. That's my intention anyway. I need steps, bad.
IMG_2527.JPG


On a brighter note, found a kickA$$ deal on Craig's: case of 5w-30 2dexos full-syn for $30!! 12 F'n quarts. 1-years worth of top-shelf oil changes.


IMG_2528.JPG


Even better a cold front just came into bigD! Wrenching weather.
 

brian.roberts.1293

Full Access Member
Joined
Aug 27, 2015
Posts
487
Reaction score
297
Location
Durham NC
It sounds like your encoder ring is going out. Then again, the TC motor has a lock so that it cannot shift out of the drive mode but... that's what it's doing. I wonder if oil is leaking past the gasket & corrupting various parts of the motor. Have you pulled the TC encoder motor off yet? I would be doing that ASAP
I hate to be like this but what does tc mean? Traction control? And where would it be located for me to even look at it. Sorry I'm mechanically inclined but this is my first Chevy v8. Thanks for the help

Sent from my SM-G955U using Tapatalk
 

Chubbs

Full Access Member
Joined
Jun 24, 2017
Posts
636
Reaction score
396
I hate to be like this but what does tc mean? Traction control? And where would it be located for me to even look at it. Sorry I'm mechanically inclined but this is my first Chevy v8. Thanks for the help

Sent from my SM-G955U using Tapatalk

Oooh. TC is transfer-case. It has an electric motor bolted on the front; when you push the button (auto4, L4, H4,) that little motor turns a shaft VS. you manually shifting an old school lever on the floor. That motor is programmed to the whole computer network in the truck. The piece inside of the motor that interprets & carries out the commands is the encoder ring. When the ring goes out, the TC transfer case will begin shifting without command.
 

M1Gunner

Full Access Member
Joined
Feb 7, 2015
Posts
1,078
Reaction score
1,238
Location
Gainesville, Fl

W8TVI

Full Access Member
Joined
Nov 6, 2016
Posts
696
Reaction score
692
Location
Traverse City, MI
Thinking about changing things up. I think I might pull the curved lightbar and put a straight bar up on the roof rack, then put cab lights up top. Then I can replace the door seals and it should be a little quieter and, even better, won't leak!!!

I'd like to get a light bar for my truck, but I'm not sure how I'd route the power wire. What did you do?
 

MadDogDelpho

Texcellent
Joined
Nov 20, 2016
Posts
1,692
Reaction score
2,297
Location
Texas
Since it's right by the door, I just ran it down through the weeatherstripping and into the engine bay. I'll try to get a good pic in the morning.
 

Tonyrodz

Resident Resident
Joined
Feb 16, 2012
Posts
33,201
Reaction score
51,448
Location
Central Jersey
Wish I could repair this! Prob be easier to just replace the whole damn seat. That's my intention anyway. I need steps, bad. View attachment 182554

On a brighter note, found a kickA$$ deal on Craig's: case of 5w-30 2dexos full-syn for $30!! 12 F'n quarts. 1-years worth of top-shelf oil changes.


View attachment 182555

Even better a cold front just came into bigD! Wrenching weather.
That's actually easy to sew. It would look repaired, but as long as there's no material missing. If there is, then it would look puckered.
 

Cattivo

Full Access Member
Joined
Dec 21, 2016
Posts
1,251
Reaction score
2,208
Location
The Concrete Jungle
Oooh. TC is transfer-case. It has an electric motor bolted on the front; when you push the button (auto4, L4, H4,) that little motor turns a shaft VS. you manually shifting an old school lever on the floor. That motor is programmed to the whole computer network in the truck. The piece inside of the motor that interprets & carries out the commands is the encoder ring. When the ring goes out, the TC transfer case will begin shifting without command.

Can the TC be repaired or would I have to get a new one? every button works accept for 4LO...It won't engage, it just blinks and returns to the previous gear from neutral when stopped or rolling down hill around 3mph
 

Chubbs

Full Access Member
Joined
Jun 24, 2017
Posts
636
Reaction score
396
Can the TC be repaired or would I have to get a new one? every button works accept for 4LO...It won't engage, it just blinks and returns to the previous gear from neutral when stopped or rolling down hill around 3mph

So you did attempt "4L0" mode with transmission shifted into NEUTRAL? Are you referring to the TC or T/M when you say 'from neutral?' If I'm not mistaken, the auto trans needs to be in "N"

if you don't hear any grinding or banging noise such as a mechanical hangup, replace the encoder ring and see if that works. If you or someone you know possesses a computer capable of updating/reprogramming the TCM, that may also work; it might even be required. I don't have any experience diagnosing this bad boy. SunlitComet possibly has a more definitive answer for you, but it seems like a faulty encoder or corrupted programming at the worst, barring any suspicious sounds.
 

Forum statistics

Threads
137,786
Posts
1,992,250
Members
102,780
Latest member
ASG-MikeS

Latest posts

Back
Top