'Service Suspension System', 2010 Yukon Denali

[Tim907356]

Same on the other side: 4.3-4.4 ohm. Quite a mystery then.

 

[George B]

Do you mean a 3157?

Yup, fixed it.

 

[George B]

Same on the other side: 4.3-4.4 ohm. Quite a mystery then.

Need a scanner to find out whats up.

 

[Doubeleive]

Same on the other side: 4.3-4.4 ohm. Quite a mystery then.

was the error there before the rear shocks were done?, if so check the front ones.
if nothing obvious then you need a scanner that can read body codes because the code will point you too to it

 

[Tim907356]

Nope: Before the shock replacement there was no message. New with the new shocks. Strange; I would think a code would come up (with a msg.) if they failed to inflate. And they did inflate when I first installed them. Question is, will they continue to work even with the message?...

Edit: I dropped my travel trailer on the hitch, which dropped the rear end ~2.5" Interestingly, the bladders stayed inflated from when they originally blew up, giving a little bit of height adjustment. However, with the message onscreen every time I fire up the Yukon, the compressor will not start to re-inflate the shocks. So that answers that; No ALS.

 

[Doubeleive]

Nope: Before the shock replacement there was no message. New with the new shocks. Strange; I would think a code would come up (with a msg.) if they failed to inflate. And they did inflate when I first installed them. Question is, will they continue to work even with the message?

they should, I would try and find a way to get the code regardless

 

[Tim907356]

O.K....Riddle me this Batmen!! I read somewhere to disconnect the battery (which I didn't do when installing the new shocks) so I just went out and pulled the positive for about 10min. Hooked it back, jumped back in and turned the key. No message, and the compressor fired up for ~5s., and jacked it back up. So I turned off the key, waited a minute, turned it back on, and Service Suspension returns. So it works, it just doesn't work.
I'll get the code.

 

[adventurenali92]

I very well could have misunderstood. if he's still getting codes. you're probably right.


I know money is tight for everyone, but the oem shocks that keep the mag ride are the best option. shame they are so expensive

FYI this generation of Denali did not come with mag ride suspension setup. The only SUVS in the GMT900 lineup that got that option was the Escalades. The Denali trimmed SUVs will have virtually the same Z55 autoride suspension setup just like the previous gen trucks, although from what I understand they’re a bit beefier then the previous gen and some tweaks were made that I can’t remember off the top of my head.

 

[Tim907356]

The only code showing is c0045 rear wheel speed sensor. That with an Actron at advance auto.

 

[gooffeyguy]

FYI this generation of Denali did not come with mag ride suspension setup. The only SUVS in the GMT900 lineup that got that option was the Escalades. The Denali trimmed SUVs will have virtually the same Z55 autoride suspension setup just like the previous gen trucks, although from what I understand they’re a bit beefier then the previous gen and some tweaks were made that I can’t remember off the top of my head.

It's not mag ride, which is adjustable with a switch/dial, but auto ride. The shocks contain a magnetic fluid that is controlled by a computer. That's why both the front and rear struts/shocks have wires that plug into them