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

Geotrash · May 13, 2023

gooffeyguy said:
That button is already lit and does nothing when I press it. I probably should've done that before hooking up the trailer, lol

Something ain't right. That’s how I do it on both of mine. Doesn’t matter if the trailer is already hooked up or not. Step 1 for me is to turn off the park distance control and then step 2 is to use the top button for the DIC controls on the dash to clear the message and go back to the odometer or whatever other thing I want to monitor. Wonder if the BT Dieselworks stuff is interfering for you.

Edit: saw you got it sorted. I assumed you were already pressing the DIC button. Lol.

j91z28d1 · May 13, 2023

mikez71 said:
Regarding the plastic, I'm amazed I didn't break the trim pieces! BIG Thank You to Tom who did the dash removal instructions on this site!

Yep I noticed middle was weak too. What did you use to prop it up? When epoxying my dash back, I couldn't get the parts to lineup without weighing down the right side of the airbag crack and pushing up center part. Same with cluster crack. If I only pushed center up, the crack opened up. Terribly flimsy dash.. Here's some pics of it now..
View attachment 399195
View attachment 399196
actually epoxied right side in two stages, just a little jbweld showing inside crack, but its pretty much perfectly level, driver side theres a ledge in the middle third..

that doesn't look to bad.

I don't really remember what I used for the center, something laying around the shop, I think it might have been a wood handle paint brush cut to length and jammed in there. lol.

j91z28d1 · May 13, 2023

mikez71 said:
wont pass with an o2 fault code! wont pass with a change in tune.. I wish they went with tailpipe testing only.

I was thinking making the light come on for the exhaust shop to see and warranty the part out.

George B · May 13, 2023

Geotrash said:
Something ain't right. That’s how I do it on both of mine. Doesn’t matter if the trailer is already hooked up or not. Step 1 for me is to turn off the park distance control and then step 2 is to use the top button for the DIC controls on the dash to clear the message and go back to the odometer or whatever other thing I want to monitor. Wonder if the BT Dieselworks stuff is interfering for you.

Edit: saw you got it sorted. I assumed you were already pressing the DIC button. Lol.

Mine will sense when I have my trailer snd automatically disable the park assistance.

Geoffsfas10 · May 13, 2023

washed it a couple days ago cause I needed the 40% chance of rain to actually happen.

Then today I changed the oil since the DoD swap. Little bit of break in oil was still left in there I guess. Also I love the 60 lbs of oil pressure now haha.

mikez71 · May 13, 2023

Doubeleive said:
noooo, basically power steering fluid is mostly mineral oil
are you sure it is the pump going out? usually the rack n pinion seals go bad and it spits it out there

no, just figured the pump was a bit cheaper than a rack and i might as well kinda thing. Glad you set me straight on the steering fluid!

havent noticed leaks yet.. probably just need a flush!

mikez71 · May 13, 2023

j91z28d1 said:
I was thinking making the light come on for the exhaust shop to see and warranty the part out.

Ooohhh. im so dumb, i read your post several times figuring i was missing something! yep

Doubeleive · May 13, 2023

mikez71 said:
no, just figured the pump was a bit cheaper than a rack and i might as well kinda thing. Glad you set me straight on the steering fluid!

havent noticed leaks yet.. probably just need a flush!

I misread your post, thought it was leaking while parked, having a brain fart today

j91z28d1 · May 13, 2023

Doubeleive said:
I misread your post, thought it was leaking while parked, having a brain fart today

did you do the flush where you suck the res dry, take the return line off it, plug the reservoir. then fill it with fresh fluid, jack the wheels up and turn the wheel right and left with the engine off till clear fluid comes out?

I've not done this yukon cause it doesn't have a pump but I did the c6 cause that thing murders powerstering fluid even with the optional cooler. it took like a qt and a half, the Tahoe system must be huge to run a gal thru

j91z28d1 · May 13, 2023

I finally got around to changing plugs and wires on this thing. it ran fine but looking at the plugs and wires, I think they might have been original. don't look bad for 146k on them, but since I only got it last year, if they have 30k on them, not great lol. they looked worse than I expected for how smooth it ran.

idles a bit smoother

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

Geotrash

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j91z28d1

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George B

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