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

[iamdub]

He probably would really like her to use all her features.

Wrong forum for this!

 

[Just Fishing]

I have been watching youtube vids about fixing the driverside lumbar and the seat cushion...

Lumbar looks like i probably lost the lil plastic gears in the motor since i just hear the motor running.

The place that sells those aluminum heater fittings also seems to sell the little gears.

Then the foam seat bottom...
The passenger side, i love thst seat.

Soft, and so nice on my bum.

Seems most of the aftermarket available options are this "denser" foam.

Has anyone ever done that?
I'm curious how it feels vs the oem foam...

 

[Geotrash]

I have been watching youtube vids about fixing the driverside lumbar and the seat cushion...

Lumbar looks like i probably lost the lil plastic gears in the motor since i just hear the motor running.

The place that sells those aluminum heater fittings also seems to sell the little gears.

Then the foam seat bottom...
The passenger side, i love thst seat.

Soft, and so nice on my bum.

Seems most of the aftermarket available options are this "denser" foam.

Has anyone ever done that?
I'm curious how it feels vs the oem foam...

I suspect the softness of the seat you're experiencing is most likely due to the age of the foam. My 2007 and 2012 XL Denali's are optioned identically as far as the interior goes, apart from color. The seats in the 2007 are noticeably softer, which I attribute to the foam being 5 years older with 100K more miles on them. Interestingly, I prefer the seats in the 2012 because they're more supportive.

 

[Just Fishing]

I suspect the softness of the seat you're experiencing is most likely due to the age of the foam. My 2007 and 2012 XL Denali's are optioned identically as far as the interior goes, apart from color. The seats in the 2007 are noticeably softer, which I attribute to the foam being 5 years older with 100K more miles on them. Interestingly, I prefer the seats in the 2012 because they're more supportive.

I was reading that the oem foam compresses over time.

Usually the seat bolster gets flattened, that then starts to cause the leather to fold on it self.

Then the leather starts to fail.

Mine is doing that.
Leather is still good, other than a small tear on the vinyl side.

So I'm thinking, I'll just do the foam for now.
I'm happy enough with the leather.

I'm probably going to go with the "durafoam".

Oem is about 2x the price... lol

As for supporting, the passenger side is mint.
Feels fantastic on the back and butt.

My wifes 11 buick is more of what i would say is supportive.

It's nice, but the seats in the tahoe are another level for me.

Then the seats in my brother in laws 2021 ford 350 platinum.
Very nice, has all of the features, even massaging!!

Still what i consider supportive, firm, etc.

I still like the passenger side in the hoemare better.
But his are a very close second... lol

But you know me, I over think things.
But this way i usually don't regret my decision.

I also saw where they suggest using a steamer to bring back the foam if you don't wish to "upgrade"

I'm tempted to try it while i have the back of the seat dissembled to fix the lumbar adjustment.

But then there is this nagging, "while I'm in there".. lol


I have a good month before i have the tahoe back on the road, and i can't do the seats until i have power reconnected anyways.

 

[Mickey_7106]

have you tried just snugging it up tighter?

Didn't even think of doing that. Gonna wipe off that mess and try that

 

[Mickey_7106]

I have an E85 station 1.6 miles from my house. On my 5.3 i can barely notice any performance gains other than lower fuel economy. It's pretty random when i decide to fill up on it. I think you'll get better results by adding one of those sensors that continuously measure ethanol content.

 

[Doubeleive]

Didn't even think of doing that. Gonna wipe off that mess and try that

Spray it with purple power, hose it off, wipe it all down so it's clean as a whistle, tighten it up and then check it daily or weekly to see if it still leaks I think there is a o-ring in there not 100% sure, could be the actuator leaking internally. @George B can confirm he just worked on his recently.

 

[89Suburban]

Here's a video of the gauge sweep after startup and a couple of pics of info shown on the DIC

. View attachment 367985

View attachment 367984

View attachment 367983

Let's see some video of the strobe action.

 

[gooffeyguy]

Let's see some video of the strobe action.

I'll get one when it's a bit darker outside. If it's not raining this evening I'll get one.

One thing I noticed with all lights strobing, since I have my fogs wired to come on automatically when parking lights are on, they don't strobe and just stay on.

Also in the setup menu, you can select just front lights strobe, just rear lights strobe, or all lights strobe.

 

[89Suburban]

I have been watching youtube vids about fixing the driverside lumbar and the seat cushion...

Lumbar looks like i probably lost the lil plastic gears in the motor since i just hear the motor running.

The place that sells those aluminum heater fittings also seems to sell the little gears.

Then the foam seat bottom...
The passenger side, i love thst seat.

Soft, and so nice on my bum.

Seems most of the aftermarket available options are this "denser" foam.

Has anyone ever done that?
I'm curious how it feels vs the oem foam...

I just put one in mine from Seat shop. I hated it at first but it's breaking in and feeling better now after 2 months. I need the one for the seat back now and can't find one. That is worn down to the steel supports.

https://www.amazon.com/dp/B074RCY1YN?psc=1&ref=ppx_yo2ov_dt_b_product_details

 

[George B]

Spray it with purple power, hose it off, wipe it all down so it's clean as a whistle, tighten it up and then check it daily or weekly to see if it still leaks I think there is a o-ring in there not 100% sure, could be the actuator leaking internally. @George B can confirm he just worked on his recently.

@Mickey_7106
The actuator is sealed to the axle with thread sealant. There is no gasket or seal. I would clean up the area, remove the actuator and reseal it. I used liquid PTFE pipe thread sealant but I think you could use some gear lube rated silicone sealant too. Clean it all up real well and monitor it.

 

[Just Fishing]

I just put one in mine from Seat shop. I hated it at first but it's breaking in and feeling better now after 2 months. I need the one for the seat back now and can't find one. That is worn down to the steel supports.

https://www.amazon.com/dp/B074RCY1YN?psc=1&ref=ppx_yo2ov_dt_b_product_details

That's what i was thinking it would be like, Hard.

"denser longer lasting foam" screwed me when I replaced all of the seals in the ol vette.
What it meant is my doors no longer shut slickly, I have to give them a bit of a slam...
and it meant I needed to upgrade the window regulators to have more power to overcome the "Dence foam"


I'm seeing the same thing happen with my rear end.





and yeah, I didn't see anything available for the seat back...
Not that I need it really, I just want to fluff the seat up a bit.

 

[gooffeyguy]

That's what i was thinking it would be like, Hard.

"denser longer lasting foam" screwed me when I replaced all of the seals in the ol vette.
What it meant is my doors no longer shut slickly, I have to give them a bit of a slam...
and it meant I needed to upgrade the window regulators to have more power to overcome the "Dence foam"


I'm seeing the same thing happen with my read end.





and yeah, I didn't see anything available for the seat back...
Not that I need it really, I just want to fluff the seat up a bit.

What, you don't like your rear end taking a bit of a slam?

Lol

 

[Just Fishing]

What, you don't like your rear end taking a bit of a slam?

Lol

Maybe?

 

[iamdub]

I have an E85 station 1.6 miles from my house. On my 5.3 i can barely notice any performance gains other than lower fuel economy. It's pretty random when i decide to fill up on it. I think you'll get better results by adding one of those sensors that continuously measure ethanol content.

I tried it once and my "virtual" sensor stayed around 21-23%. I confirmed the actual alcohol content of that fuel (sampled from the fuel rail) to be something like 65%. The PCM will only adjust for what percentage it sees, making it a waste. I plan to install a real sensor one day.

 

[gooffeyguy]

I tried it once and my "virtual" sensor stayed around 21-23%. I confirmed the actual alcohol content of that fuel sampled from the fuel rail) to be something like 65%. The PCM will only adjust for what percentage it sees, making it a waste. I plan to install a real sensor one day.

I've tested mine before and it was within 3%. Virtual sensor said like 67% and actually it was 70%

I wonder what causes it to be off as much as yours was. Someone else had that problem too, can't remember who though.

 

[gooffeyguy]

Let's see some video of the strobe action.

Quick vid of the strobes.

Here are also the options for the strobes

 

[iamdub]

I've tested mine before and it was within 3%. Virtual sensor said like 67% and actually it was 70%

I wonder what causes it to be off as much as yours was. Someone else had that problem too, can't remember who though.

Yup. IIRC, theirs was reading around 22% as well. I never looked into it any further. My first step should probably be to reset it and start from scratch. But, if a Tech 2 or bi-directional scanner is the only way to do this, then I'm out.

 

[RooTBeeRthe1st]

I tried it once and my "virtual" sensor stayed around 21-23%. I confirmed the actual alcohol content of that fuel (sampled from the fuel rail) to be something like 65%. The PCM will only adjust for what percentage it sees, making it a waste. I plan to install a real sensor one day.

Real sensors pretty darn easy to do, just takes a few hundred bucks, some companies make kits, basically plug and Play.

I've tested mine before and it was within 3%. Virtual sensor said like 67% and actually it was 70%

I wonder what causes it to be off as much as yours was. Someone else had that problem too, can't remember who though.

I had that issue last year some time.
Resetting the sensor didn't do anything. It was pissed off and kept reading way lower than it should, causing it to run lean and piss off the fuel trims and throw light.

 

[Doubeleive]

Quick vid of the strobes.

Here are also the options for the strobesView attachment 368120

View attachment 368121

View attachment 368122

View attachment 368123

that's cool but might get you in trouble with the popo lol