Growing up doesn't have to suck

[kbuskill]

The bcm can read the air pressure just not sure what it does with it, I see mine typically keeps 30-40lbs in the bladder it doesn't stay on any particular set number, when my last pump took a dump it was giving all kinds of weird numbers anywhere from 12lbs to 150lbs turned out it was leaking thru the internal valve.

Interesting... I didn't know the BCM could see the pressure... but I don't have a Tech2 either, unfortunately

 

[swathdiver]

Interesting... I didn't know the BCM could see the pressure... but I don't have a Tech2 either, unfortunately

Tsk! Tsk! Ken! LOL

 

[kbuskill]

Tsk! Tsk! Ken! LOL

I want one, real bad... it's just the Burb has been running so good I haven't had a "need" for one yet... which is a good thing, I guess... lol

 

[gooffeyguy]

I want one, real bad... it's just the Burb has been running so good I haven't had a "need" for one yet... which is a good thing, I guess... lol

Running good or not, you will find something to mess around with if you had a Tech2!

My Denali runs fine, no codes, lights, issues, but going through the menus and seeing what it can do and what readings it can take is just, well, fun.... lol

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

 

[kbuskill]

Running good or not, you will find something to mess around with if you had a Tech2!

My Denali runs fine, no codes, lights, issues, but going through the menus and seeing what it can do and what readings it can take is just, well, fun.... lol

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

I agree... it will happen eventually.

 

[Tonyrodz]

I want one, real bad... it's just the Burb has been running so good I haven't had a "need" for one yet... which is a good thing, I guess... lol

Until you need it......

 

[iamdub]

The bcm can read the air pressure just not sure what it does with it, I see mine typically keeps 30-40lbs in the bladder it doesn't stay on any particular set number, when my last pump took a dump it was giving all kinds of weird numbers anywhere from 12lbs to 150lbs turned out it was leaking thru the internal valve.

All the more reason why I should monitor the pressure in the bags. I believe they're spec'ed to 35 psi max.

 

[Doubeleive]

All the more reason why I should monitor the pressure in the bags. I believe they're spec'ed to 35 psi max.

be careful then, you might want to build a 35 psi relief valve of some sort

 

[iamdub]

be careful then, you might want to build a 35 psi relief valve of some sort

Word.


I just got back from getting dinner. I measured from ground to fender and it was 1/8" lower than where it was when I parked it Sunday night. I started it and put my tape measure to it. The compressor kicked on and it rose ~1/16". On the drive to the pizza place, it felt like it did when I drove it last. When I got back in it at the pizza place and started it, the compressor came on for about five seconds and I even felt the vibes in the seat. The ride home was a little more firm, not uncomfortable by any means. It felt more balanced with how the front rides. I did the hard slalom motions with the steering wheel and it was noticeably more controlled- less wag and quicker, almost immediate recovery and settling. When I got home and parked, I measured it again and found it was now 1/2" higher than when I started. Where I parked at the pizza place, it was an incline with a shallow dip running widthwise, like the Tahoe was parked over a ditch with the front wheels on one side and the rear over the other. I'm wondering if this loaded/squatted the rear a little more and the compressor put more air into it to pick it up. The extra air would've firmed up the ride which would make it feel more like the front as well as make it more stable against swaying. I liked the feel and handling, just not the lifted height.

So now I have to (1) Find out how much pressure it put in the bags to accomplish this firmness. (2) Lower it an additional 1" - 1.25". (3) Mark the sensors and adjust the links so that it airs up to this same sensor position.

This would give me my 4" net drop AND the desired spring rate (the slightly firmer one I had on the ride home) with the bags inflated to what the ALC system detects as "normal". Everything hinges on the amount of pressure being used...

 

[Doubeleive]

Word.


I just got back from getting dinner. I measured from ground to fender and it was 1/8" lower than where it was when I parked it Sunday night. I started it and put my tape measure to it. The compressor kicked on and it rose ~1/16". On the drive to the pizza place, it felt like it did when I drove it last. When I got back in it at the pizza place and started it, the compressor came on for about five seconds and I even felt the vibes in the seat. The ride home was a little more firm, not uncomfortable by any means. It felt more balanced with how the front rides. I did the hard slalom motions with the steering wheel and it was noticeably more controlled- less wag and quicker, almost immediate recovery and settling. When I got home and parked, I measured it again and found it was now 1/2" higher than when I started. Where I parked at the pizza place, it was an incline with a shallow dip running widthwise, like the Tahoe was parked over a ditch with the front wheels on one side and the rear over the other. I'm wondering if this loaded/squatted the rear a little more and the compressor put more air into it to pick it up. The extra air would've firmed up the ride which would make it feel more like the front as well as make it more stable against swaying. I liked the feel and handling, just not the lifted height.

So now I have to (1) Find out how much pressure it put in the bags to accomplish this firmness. (2) Lower it an additional 1" - 1.25". (3) Mark the sensors and adjust the links so that it airs up to this same sensor position.

This would give me my 4" net drop AND the desired spring rate (the slightly firmer one I had on the ride home) with the bags inflated to what the ALC system detects as "normal". Everything hinges on the amount of pressure being used...

Just remember the more weight you throw on the back the more it will try to inflate to keep the same height