Air ride help

[Wings720]

Been having intermittent issues with my air ride. Keep getting the service air ride message. Finally got this code What do?

 

[George B]

Been having intermittent issues with my air ride. Keep getting the service air ride message. Finally got this code What do?View attachment 393196

The valve is integral to the compressor. Time for a new compressor assembly.

 

[Joseph Garcia]

That error is associated with your air compressor, part of the air suspension system. Before firing the parts cannon, do you hear the air compressor start up and run for 5 or so seconds, when you start up your truck? If yes, make a soap and water mix in a spray bottle and spray in on the rear shocks, both where the air line attaches to the shocks and on the rubber air bags. Do you see any bubbles, indicating an air leak? If you see air bubbles, then your shocks are leaking and need to be replaced.

If you do not hear the compressor start up, first check the fuse for the compressor in the fuse box in the engine well. If the fuse is good, you most likely need a replacement compressor. Rock Auto has Dorman air compressors for your truck for under $200.

 

[Wings720]

Yeah I will occasionally hear the compressor. It was running after every start up before this all started. Now not as much.

 

[Joseph Garcia]

Yeah I will occasionally hear the compressor. It was running after every start up before this all started. Now not as much.

Check for those air leaks.

 

[Wings720]

didnt see any air leaks whats next?

 

[George B]

I have read about wires getting pinched on the factory pumps when they are mounted.

 

[Wings720]

Where is the air ride suspension module lol? I can’t find it anywhere on the truck or anywhere on Google. I replaced the compressor; checked lines. Had to jump the rely to get it to work. Need to replace the module but can’t locate it.

 

[Rocket Man]

Where is the air ride suspension module lol? I can’t find it anywhere on the truck or anywhere on Google. I replaced the compressor; checked lines. Had to jump the rely to get it to work. Need to replace the module but can’t locate it.

It’s behind the rear passenger side panel, you need to remove that big interior piece that covers the rear heater/AC assembly and you’ll see it.

 

[Wings720]

It’s behind the rear passenger side panel, you need to remove that big interior piece that covers the rear heater/AC assembly and you’ll see it.

Thank youuu

 

[Rocket Man]

Thank youuu

FYI those rarely go out, they’re a computer. More common is the ground wire being corroded on the compressor. It’s separate, it kind of branches off the wiring harness to a ring terminal on the frame. That was my problem after I installed a new compressor. The ring terminal wasn’t connected to the wire very good because of corrosion.

 

[nonickatall]

I also have air suspension on the rear of my 2006 Escalade. I've never heard the compressor and i recently had loaded the car heavier and had the feeling that it was hanging a bit. So the air suspension seemt not start. I saw on the right rear damper that the rubber is slightly damaged on one side. I don't know if that's just an outer shell or if that's the air bellow itself.

I know the air suspension from my Mercedes S-Class, but the system is fully air, so when the compressor did not start, the car lies on the floor.
Is the air suspension here, just a support? Or would the back sink down, when it not works?

Could it be that my predecessor shut down the system and I still don't get an error message? Is there a fuse somewhere? How can I test whether the system starts? Where is the compressor? At the back somewhere on the axle?

 

[Wings720]

I fixed the rear issue and the air ride is now working correctly. I think the front now has also developed issues. The auto ride system? How can I test or activate it or even just determine if I’m just losing my mind lol?

 

[Rocket Man]

I fixed the rear issue and the air ride is now working correctly. I think the front now has also developed issues. The auto ride system? How can I test or activate it or even just determine if I’m just losing my mind lol?

The front is not air, it’s a fluid filled system that changes damping electronically. It doesn’t raise or lower the front of the vehicle. The only thing that happens if the front isn’t working is display “ service suspension” message on the DIC and you might notice a slight difference in cornering or hard braking where the nose dives a bit more than normal. Most people wouldn’t even notice, you’re more likely to notice the shocks getting worn out than the electronic damping not working.

 

[Rocket Man]

And the only way to test the system is with a bidirectional scanner like the GM Tech2 or Snap-On Soleus. A shop with a scanner can read the suspension system codes and provide you with them, for a fee of course. There’s a list of members here with Tech2’s that are willing to help other members.

Tech 2 Owners Map

Added Hi, @George B, please take my name off the list. I sold mine to another member, and I'm using an Autel now. (I know, blasphemy!)

www.tahoeyukonforum.com

 

[Wings720]

The front is not air, it’s a fluid filled system that changes damping electronically. It doesn’t raise or lower the front of the vehicle. The only thing that happens if the front isn’t working is display “ service suspension” message on the DIC and you might notice a slight difference in cornering or hard braking where the nose dives a bit more than normal. Most people wouldn’t even notice, you’re more likely to notice the shocks getting worn out than the electronic damping not working.

Thank you. I’m so paranoid about this air ride stuff lol.