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

[Charlie207]

Received my BBP AutoCal V3 in the mail the other day, downloaded the engine & transmission stock tunes, and did about 40 minutes of varied driving to gather the required data logs.

Sent the files to Black Bear last week, and got the tuned files returned back to me a little while ago.

Flashed the two files, and patted myself on the back for not ******* anything up. Took it for an adaptation cruise to check for wonky transmission behavior before I do any data logging, and the throttle feels much more alive.

I imagine overall power gains are minimal, but the car feels much more responsive and eager than before. My benchmark was my previous truck, a 2005 Nissan Armada LE 4x4 with the 5.6 DOHC engine w/5sp. transmission making 305hp/385tq. It has 234,*** miles on it, and still felt 10x more peppy off the line than this 2014 5.3 w/6spd slushbox.

The Armada could spin the tires from a stand-still with it's 3.63 rear-end, whereas the GMC was never be able to do that even with it's comparable 3.42 rear-end. And, the Nissan throttle felt like a 2-stage AR-15 trigger compared to the GMC's mushy AK-like garbage....the amount of punchiness is like night/day.

My GMC is bone-stock, and in great running shape (no codes, fresh oils, new filters, etc) so I hope once the tune has adapted to regular driving I can enjoy my time behind the wheel.

Next and probably last mod is an exhaust upgrade. Either buy a >$100 muffler< and pay someone to weld it in, or buy a stainless MBRP system for twice as much and do it myself because I hate giving people money to do things I can do. (For more, but whatever)

 

[Tonyrodz]

So was I! The whole setup. Well, except for the phone. The GoPro was a bday gift years ago. But, yeah, I loosen the bleeder just enough to let it flow under pressure. No sense in backing it out so much it's loose in the threads. That just lets air in around the threads and gives you almost no pedal resistance. I watch the hose and bottle as I work the pedal. When it goes from watered-down tea color to lemonade-colored and no bubbles, it's done. Having the bleeders just loose enough keeps the system sealed so air doesn't come in while I make my way back to that corner to close it. I can't rely on anyone for anything.

Why not get speed bleeders?

 

[Just Fishing]

My temp gauge started reading low. One day it's fine. Next day it's reading low, but it doesn't stay low. It varies. I'm hoping it's just the 200k mile temp sensor laying down. Funny thing, I did a WOT pull from 20-98 mph. Temp read perfectly fine for a week. Maybe try that...

I washed the hoe, pretty thick clay.
all is fixed now!
















Yeah looks like i get to do some grounds!!!

Wideband should be here by next weekend, slow ass shipping.



Figure i'll go at it all at once.

 

[Just Fishing]

If I had a house or garage, so many of my space and time issues would be gone.
Like it easily get projects done after work everyday.
But I'm still in a ****** little apartment especially the way this housing market has gone the last 2 years.
I have new tires on order, actually ordered them about 2 months ago still waiting for them to ship.
So I figured I would swap out one of my 4-year-old tires that are the same size as the new 33's (minus 50,000 miles of wear), with the 8-year-old original spare in the original size.
I know it'll fit up there, it'll just hang down a tiny bit lower.

I've got roadside assistance and towing as well, but I could easily have that spare tire put on there before they arrive and be on my way.

But mostly, I go out into the middle of the desert, especially where there's no cell phone service for miles, and they wouldn't be able to get out there even if I could contact them.

I lucked out and was in a good spot when the market crashed, houses bottomed out in something like 11 or 10.
Sister had a guy that was really good with short sales.
(Pretty much he is good at pushing and annoying banks until they finally settle on a price)

I don't think it will be too much longer until the cycle starts over again.

When it does, i want a rental.
(probably buy a better house and turn this one into a rental)
then if it ever spikes like this again, sell sell sell!


Garage is the bees knees, you will get there.
Just be sure your in a good place when the time comes.
Also research short sales.

Math i used to buy a house,
Rough value of the house on the market vs area.
How much it would take for the bank to make it sellable
It takes roughly 10k to foreclose (iirc, might have changed too).

Math for teh offer! _(Insert price here)_

To explain more
say the house value "ready to sell" was something like 160k
Rough amount of money to get the house ready to sell if a contractor was to do it, roughly 50-55k
Expect the bank to spend another 10k on top of that in order to foreclose.
= 95-100k rough value
come up from that slightly to make the offer oh so sweet to the bank, say 105k.


With that, and a perfectly timed offer right as the market analysis predicted doom = house!!

 

[89Suburban]

Why not get speed bleeders?

How reliable are those over time as they get crusty? Just curious.

 

[Rocket Man]

No doubt the Tech2 would be easier and I'm not discounting using specialty equipment. Call it blind luck, but I've never had an issue. I've done this on various generations of GM trucks (S-series and 1500s), Hondas (5th-7th gen Civics and 4th-6th gen Accords), a few late-model Toyotas, a few Jeeps, Ford cars and 1/4 and 1/2 ton trucks, etc. The way I see it, I'm operating the system within its normal design. I guess the only difference is that it's at lower pressures per pedal position since it has a "leak".

What I did have an issue with was the first brake job I did on my Tahoe. During the bleeding, the pedal went soft during the last corner. The master cylinder failed. The bore was worn in the range where the piston had been normally stroked for 150K+ miles. What I learned was that, when bleeding, my pumping it to the floor put the piston into virtually unused bore area that was smaller/tighter, tearing the aged seal(s) on the piston. I got a new MC, bench-bled it, re-bled the whole system again and it's been great ever since. After the bedding-in process, I did plenty of very hard test stops on pavement and the ABS performed great. 50K miles later, I did another brake job, this time using a piece of 2x4 to prevent bottoming out of the pedal or MC and with the same flush and bleed method I've always done. I have none of the "dead travel" in the pedal that is so common with GM brakes.

I do the key on/off method with plastic bottle and clear hose hanging by the caliper. I use my phone linked to my GoPro to watch the bottle while I pump.

GoPro= great idea.

 

[Tonyrodz]

How reliable are those over time as they get crusty? Just curious.

I have them in the front. So far it's been maybe 3-4 yrs and they're still ok.

 

[pwtr02ss]

Bought my house in sort of the same way only I put an offer, seller declined. Twice. House went into foreclosure with the bank I had preapproval with. Had 30k equity as soon as I signed the deal. Like you said, I had to pay lawyer fees and what not. $7-8k and some other things. Still made out well. House is paid for now, looking at land to build our "forever" home.

Dip will come sooner than later, sadly. Markets are ****** and will have to change. Just hope I keep my salary and can build in the lower economy

 

[iamdub]

Why not get speed bleeders?

Cuz I'm paranoid of adding four extra valves to a brake system for service intervals that I perform years apart. Not knocking them. I just classify them in the same category as other specialty tools. For the rare occasions they'll be used (every 40-50K miles), I don't care to invest.

 

[Doubeleive]

My temp gauge started reading low. One day it's fine. Next day it's reading low, but it doesn't stay low. It varies. I'm hoping it's just the 200k mile temp sensor laying down. Funny thing, I did a WOT pull from 20-98 mph. Temp read perfectly fine for a week. Maybe try that...

did one of those today 0-100 hits 100 in 3rd gear exactly