The thread is below. But before you review it..I have "TQ"? I'm getting ready to do a Air ride to Spring Conversion. As Far as I can Tell there is a Module you need ...."EBM" which tells the system the air ride is working ok and Don't put no freaken dash warning "Service Air Ride System" lights up on my dash!!

However..I did get the springs from Strutmasters and the shocks. They are made here in the USA in Georgia. They do not sell the EBM module. Many places list it with there spring kits but show it from..2003-2007. Seems like us 08 and 09 guys are Farked. Anyway some show it to 2008 on eBay but not on there site.

I can't seem to find it online for a 2009 H2 SUV. My main concern is just to turn off the warning on the dash.... Some say...Pull the 60 Amp fuse and the other one ...I think the "AS" fuse. And also disconnect the relay near the frame. Some say.. Get the old Tech 2 and go in and Fark around there?

At this point I don't know what to do? You can read the old thread below as some of you posted info there. I just want a simple way of telling the system No lights please. My local shop could do the spring swap but I don't think they have the chops when it comes to getting into the the HUMMER Air ride system. It is super complicated from what I have read and over engineered.

Went out this morning and after 3 weeks of being ok....it was all the way down on it's ****. Fired it up and raised it to the 2" override height and then back down to level. There she sits maybe for another however long. The bags are not leaking... it must be the exhaust valve seeping with temp change in the compressor asembly.
No warning lights or codes anywhere. Just wondering if I could go in with the tech two and tell it to knock off the dash light thang.

So Run that around your brain... I really hate dealing with over teched out stuff.

Thanks in advance.... and let's wait and see what answer HUMMERZ comes up with..It's like a Side show with him...LMAO

Mark R


https://www.hummerforums.com/forum/h...version-45404/

 

 

I bated you dude.... Your my Favorite fox hole bud. Pass the 7.62 ..not that crappy 556.

 

I bought mine with the conversion already done, mines a 2003, and the light came on for me until I disconnected the relay front drivers side near frame just above tire maybe slightly to rear of tire, really dont know if that would be the same on all years but it stopped the warning on dash perminantly

 

Yeah That's one of the things that work. Also I hear pulling the 60 Amp Fuse in the underhood fuse box as well as another fuse I can't remember. I have my guys at M&M Auto repair.. Also working on a fix. One might be what was in the link I posted that someone suggested. Can't remember who but it was to reprogram or Flash one of the modules and tell it it doesn't have Air ride.

Waiting on then to call me back. They are also trying to locate the "EBM" module that would turn of the ligjt.

 

You sure you not leaking air at top of airbag? Its a common spot and will act like this

 

Well Riddle me this Batman...L.O.L. How come the *** end will stay up for a 3 weeks? Then one day it's sucking ground? I think just before I shut down the compressor is running and when I pull the key and open the door the exhaust valve doesn't slam shut all the way and Me gots a slow leak. So now, before I get out I let the motor run for a minute or two and make sure the compressor has stopped. Of course that is my guess.

They should have included a light on the panel that shows when the compressor is running.

Any ideas where to tape in a light to show it's on? It comes on and off when you are driving and stop at a light keeping ride height. That's a guess? That system is way over engineered. You should know when it's on and off. But Nooooooooooooooooooooooooooo...we don't need no stinking light!

 

Mark - I think these ride so much better with air ride ... did you go through the initial checklist and confirm the problem is the compressor?

Any GM dealer can narrow down the problem even on these older H2s...

1. Confirm air bags are good - soapy water test
2. Confirm air hoses are good - soapy water test
3. Confirm you don't have a broken ride height sensor - visual inspection
4. And then they will check codes with a Tech2

If you definitely have a compressor issue, getting a replacement is nearly impossible as these just don't exist - But your compressor can be repaired - would you want to go down that route?

 

Thanks for the reply Brunob00,
The Air Bags are good.. at one point the *** end was up for a month. I have squirted soapy water on them with them all the way up above ride height when it was in for and oil and lube job. To me that eliminates any kind of leaf there.

There are no codes set with a Cheapy scanner I have. I doubt the Tech 2 will show any.

I can't confirm the airline leakes but it stays up for 3-4 weeks then I would have to assume they are good.

The ride height sensors are Ok in fact I have another set I bought a few years back new. As of this post the H2 has been up for about two weeks now. It went down after 3 weeks before this post. What I do when I find it low , is I fire up the motor... Doors shut in park.... and hit the lift button. The compressor will come on and jack the rear to the 2" max height level and shut off. Then I hit the the button again and the 2 comes down to normal ride height and I can hear the air exhaust valve close with a metal clunk and the compressor stop .

When I measure From ground to fender lip height it's right on on both sides + or - 1/4 inch..

There are no parts available for this compressor... I have looked. I am pretty sure as I have said that if I shut the motor off while the compressor is running, I think the fill / exhaust valve does not seat all the way and close. I think the leak has to do with that valve. With the motor running there seems to be enough power to feed the related solenoid . Anyway.....I would like to keep he Air system but the H2 is my daily driver and there are no replacement compressors are parts that I can find except one new one in the UK for about $4500.00 USD plus shipping.

To get this system worked on I have to take it to my guys 75 Miles from me. I don't have Lift or any way of working on it at home If I had parts.
So what's the next logical step to take? Springs.

I'll also lose towing capacity as the Air ride levels out the load where springs will sag. I could add "AIR RIDE" bags to the springs but I don't Tow stuff.
IF I could find all the parts to repair this compressor or the complet unit I would keep the H2 air ride. But when faced with No direction to go, You make a Move.

How many here have spring ride and think it sucks. Many cars still use springs..It can't be that bad. Maybe air ride is smoother but think my air ride days are over.

 

@Mark R - Let me know if you were able to do the following... if not, I have a Tech2 and an H2 with air suspension and I will perform this test on mine tomorrow and confirm the procedure.

1. Connect the Tech 2

• Connect the GM Tech 2 to the DLC/OBD-II port under the dash.
• Turn ignition to RUN (engine can be off initially).
• It’s better to have a battery charger connected because the compressor can draw significant current during testing.

2. Navigate to the Suspension Module

On the Tech 2 menu:

Depending on Tech2 software version, it may say:

• “Electronic Suspension Control”
• “Air Suspension Control Module”
• “ECAS”

What to Check

A. Read Diagnostic Trouble Codes (DTCs)

Go to:

Common H2 air suspension codes include:

• C0563
• C0626
• C0660
• C0696
• C0702
• C0711