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

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Doubeleive

Wes
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Maybe lower it one hole... looks just a tad high to me.
I just had it zip tied on there over the original one just to get an idea of how it will look, I could maybe find a grill without the emblem and put this on it or put in down on the bottom, I don't know just floating the idea. If I use this grill I will have to shave the original emblem mount off flush, just trying to see if it looked huge on the grill in comparison to the real estate
 

Doubeleive

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I could get one like this and put it on there then I wouldn't have to mess around too much, then if don't like it can take it off and sell it
grill5.JPG
 

08z71bgm

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Keep a close eye on it,
There are some things in the valve body that affect that.
Usually the pressure switches start going wonky when they start splitting.

There is also a pressure regulator valve that starts wearing out, fixed via a transgo or sonnax kit...
I’m an idiot. Was low. Checked it at the wrong temp. Good to go now. Lol
 

Monz11

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Currently my build is at a stand still, due to COVID and backlog...No Maggy, on a 2 month wait....

Although, I do have a crap load of NBS parts, if anyone is looking for the 07-14 models, i.e. headlights, taillights, radiator, tranny cooler, oil cooler, intake manifold, lines, hoses, etc.
 

iamdub

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I haven't had the hoe very long, but i do plan on adding a catch can.
I have one on the old vette, pcv system would pass oil to the #2 cylinder... pita with the wide band 02 sensor and tuning.

After running with it for a while now, I'm sold on the catch can idea.
:893karatesmiley-thu

And it was something i noticed after the first oil change in the hoe.
I like to use a half can of seafoam in the oil every few oil changes, drive for a short time and then change the oil and filter.

I did that with the hoe and was amazed how bad the oil looked, it upset years of built up gunk.

Stupid oil change monitor...
In my wifes car i use it as a general reminder, but i go off of how the oil looks vs miles.

But then again, I'm pretty sure the hoe was someones heavy duty minivan... lol

Should have seen the brake fluid... :confused:

I also have noidea what kind of oil the po used.
Per the carfax, the oil changes were mostly done by the dealer, and just a few quick oil change places.

This is the Highest mile car i have ever purchased... lol

I always go by the 3-4k mile, or every season. What ever comes first rule.


I have been running this thing with the dod/afm disabled via hp tuners.

Think there would be any benefit to enable it for a short time after i have everything sorted to hopefully flush the system out a little?

Or better to keep it off until I'm ready/willing to do a full gut and a mild cam thrown in?

Also, i haven't noticed any change in the oil level.
But i also haven't driven it much yet.
Maybe a thousand miles or less.

Sounds like you're in good shape. Unless you wanna keep AFM operational in case you ever wanna turn it back on (I don't know why one would ever want to do this), there's no need to re-enable it, especially if you're gonna delete it one day.
 

5strmtrp

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Sounds like you're in good shape. Unless you wanna keep AFM operational in case you ever wanna turn it back on (I don't know why one would ever want to do this), there's no need to re-enable it, especially if you're gonna delete it one day.


So my understanding is if you want to delete AFM, you have to either get/borrow/or have the dealer shut it off with a Tech2.

OR

Purchase a something like HP tuners to delete it.

OR

Send out the BCM to have it done.

Mine is driving me nucking futs at slow surface street speeds. I’m lucky if it kicks in on the highway with all the other brainless dickless spotty headed morons on the road and the way this highway sucks for setting cruise control on.
 

PG01

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So my understanding is if you want to delete AFM, you have to either get/borrow/or have the dealer shut it off with a Tech2.

OR

Purchase a something like HP tuners to delete it.

OR

Send out the BCM to have it done.

Mine is driving me nucking futs at slow surface street speeds. I’m lucky if it kicks in on the highway with all the other brainless dickless spotty headed morons on the road and the way this highway sucks for setting cruise control on.
Dealer won’t do it.
Range device Diablo or black bear
Ecm
Drive around in m5 if 6 speed.
Use tow haul mode( shuts it off)
 

PG01

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I tried running in Tow/Haul mode when we drove to Texas last month and swear the DIC showed my 2013 switched between V4 and V8. Will have to get out and try it again to see if I am nuts or if it really did switch.
Ya know I haven’t tried it in awhile but I could swear mine wouldn’t switch when I first bought it with towhaul on....I disabled afm very early on so now I don’t remember..... I guess if you remember next time you’re out in yours check it and report back
 

iamdub

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So my understanding is if you want to delete AFM, you have to either get/borrow/or have the dealer shut it off with a Tech2.

OR

Purchase a something like HP tuners to delete it.

OR

Send out the BCM to have it done.

Mine is driving me nucking futs at slow surface street speeds. I’m lucky if it kicks in on the highway with all the other brainless dickless spotty headed morons on the road and the way this highway sucks for setting cruise control on.

Dealer won't do it and I don't think a Tech2 can do this, anyway.

You could get an all-out tuning program such as HPT or EFI Live, but that's not necessary unless you wanna learn how to tune.

Not the BCM, the PCM. THis would be the cheapest option as there's a guy that does it for around $50, IIRC.

Just to disable it without an actual tune, you could buy a handheld tuner or Range device. Years ago, I had a speed shop turn mine off as well as the rear O2 sensors. Also had them remove the speed limiter, reduce Torque Management a hair and slightly raise the trans line pressure for $150. I agree that there are very few instances where all the stars align for AFM to be engaged long enough to be of any benefit. Even then, what little benefit you may gain from years of using it are more than negated by the expense of repairing or deleting it when it acts up.
 

the_tool_man

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...Years ago, I had a speed shop turn mine off as well as the rear O2 sensors. Also had them remove the speed limiter, reduce Torque Management a hair and slightly raise the trans line pressure for $150...
This is exactly what BB did for me, except they charged $350. At least I have lifetime retunes if I need them.
 

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