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06-25-2011, 04:00 PM
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Elcova Newbie
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Join Date: Jun 2011
Posts: 3
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Help!!! service air suspension
i have Hummer H2 in Lithuania and seams 3 weeks appear always on the screen the text "service air suspension" and now i see that the car on the back side is quite down... what can be, what i should do? Here in Lithuania is quite difficult to find some service that understand about Hummer... ;-) Thanks for your help....
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06-25-2011, 10:31 PM
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Hummer Professional
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Join Date: Jan 2011
Location: Clayton, NC
Posts: 370
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Re: Help!!! service air suspension
It could be your airbags, they do tend to get cracks and break, you could try ordering some, there are some writeups (and a youtube video I believe) on how to change them.
Alternatively you could just replace the air bags with springs, but then it would come down to finding someone with a tech II to reset the system to stop popping up the service air suspension message.
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06-26-2011, 06:38 AM
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Elcova Newbie
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Join Date: Jun 2011
Posts: 3
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Re: Help!!! service air suspension
What is the connection between airbegs and suspencion? Even if airbags are brake(but i don't think so) why shouldn't work air suspention? i look well my car today and i see that back in the left side is very down,but in the right side is more up and even if I go around by car don't change nothing... maybe is not working air compressor... How to understand? I don't know,maybe someone can help me?
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06-30-2011, 01:41 AM
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Elcova Newbie
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Join Date: Jun 2011
Posts: 3
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Re: Help!!! service air suspension
I was doing diagnostics,and they find the problem code C0626 (LEFT REAR POSITION SENSOR CIRCUIT PERFORMANCE)... And U1064 (LOST COMMUNICATION WITH BCMIDIM) ...What does this mean? What to do now? Thanks...
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06-30-2011, 02:32 PM
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Hummer Professional
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Join Date: Jan 2008
Location: Meadville, PA
Posts: 339
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Re: Help!!! service air suspension
Sounds like your left airbag in your suspension is broken.
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07-03-2011, 12:52 PM
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Hummer Authority
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Join Date: Jun 2005
Location: Key Largo
Posts: 1,174
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Re: Help!!! service air suspension
There are many more knowledgeable than me, however, being on the board a long time and reading several air suspension posts, and having air suspension on my H2 I can tell you it's normally not the air bags, but instead a bad sensor, or a loose or broken wire to the sensor, or mud and gunk on the sensor, or the sensor needs adjustment. As for your air bags, when I bought my H2 new the service dept said to spray them with Armorall three or four times a year and they would stay in good condition - so far so good!
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07-04-2011, 12:37 AM
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Hummer Authority
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Join Date: Sep 2003
Location: Canada
Posts: 1,251
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Re: Help!!! service air suspension
On average if i see a left sensor code, the sensor is at fault. Right sensor code is typically wiring. Not sure why but thats been the average
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